Исправления

RealEstateTransactions/RealEstateTransactions/Entities/Apartment.cs

@@ -0,0 +1,36 @@
+using RealEstateTransactions.Entities.Enums;
+
+namespace RealEstateTransactions.Entities
+{
+    public class Apartment
+    {
+        public int Id { get; private set; }
+
+        public AgencyType AgencyId { get; private set; }
+
+        public FormFactorType FormFactorId { get; private set; }
+
+        public float Area { get; private set; }
+
+        public float PricePerSM { get; private set; }
+
+        public float BasePrice { get; private set; }
+
+        public float DesiredPrice { get; private set; }
+
+        public static Apartment CreateApartment(int id, AgencyType agencyId, FormFactorType formFactorId, float area,
+            float pricePerSM, float basePrice, float desiredPrice)
+        {
+            return new Apartment
+            {
+                Id = id,
+                AgencyId = agencyId,
+                FormFactorId = formFactorId,
+                Area = area,
+                PricePerSM = pricePerSM,
+                BasePrice = basePrice,
+                DesiredPrice = desiredPrice
+            };
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Entities/Buyer.cs

@@ -0,0 +1,24 @@
+namespace RealEstateTransactions.Entities
+{
+    public class Buyer
+    {
+        public int Id { get; private set; }
+
+        public string FullName { get; private set; } = string.Empty;
+
+        public int PassportSeries { get; private set; }
+
+        public int PassportNumber { get; private set; }
+
+        public static Buyer CreateBuyer(int id, string fullName, int passportSeries, int passportNumber)
+        {
+            return new Buyer
+            {
+                Id = id,
+                FullName = fullName,
+                PassportSeries = passportSeries,
+                PassportNumber = passportNumber
+            };
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Entities/Deal.cs

@@ -0,0 +1,31 @@
+namespace RealEstateTransactions.Entities
+{
+    public class Deal
+    {
+        public int Id { get; private set; }
+
+        public int ApartmentId { get; private set; }
+
+        public int BuyerId { get; private set; }
+
+        public float DealPrice { get; private set; }
+
+        public DateTime DealDate { get; private set; }
+
+        public IEnumerable<ServicesDeal> DealServices { get; private set; } = [];
+
+        public static Deal CreateDeal(int id, int apartmentId, int buyerId, float dealPrice,
+            DateTime dealDate, IEnumerable<ServicesDeal> dealServices)
+        {
+            return new Deal
+            {
+                Id = id,
+                ApartmentId = apartmentId,
+                BuyerId = buyerId,
+                DealPrice = dealPrice,
+                DealDate = dealDate,
+                DealServices = dealServices
+            };
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Entities/Enums/AgencyType.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RealEstateTransactions.Entities.Enums
+{
+    public enum AgencyType
+    {
+        None = 0,
+
+        Sniper = 1,
+
+        Shark = 2,
+
+        Hammer = 3
+    }
+}

RealEstateTransactions/RealEstateTransactions/Entities/Enums/FormFactorType.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RealEstateTransactions.Entities.Enums
+{
+    [Flags]
+    public enum FormFactorType
+    {
+        None = 0,
+
+        Kitchen = 1,
+
+        Hall = 2,
+
+        BedRoom = 4,
+
+        Lounge = 8
+    }
+}

RealEstateTransactions/RealEstateTransactions/Entities/PreSalesServices.cs

@@ -0,0 +1,24 @@
+namespace RealEstateTransactions.Entities
+{
+    public class PreSalesServices
+    {
+        public int Id { get; private set; }
+
+        public int ApartmentId { get; private set; }
+
+        public string Name { get; private set; } = string.Empty;
+
+        public float Cost { get; private set; }
+
+        public static PreSalesServices CreatePreSalesServices(int id, int apartmentId, string name, float cost)
+        {
+            return new PreSalesServices
+            {
+                Id = id,
+                ApartmentId = apartmentId,
+                Name = name,
+                Cost = cost
+            };
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Entities/Services.cs

@@ -0,0 +1,21 @@
+namespace RealEstateTransactions.Entities
+{
+    public class Services
+    {
+        public int Id { get; private set; }
+
+        public string Name { get; private set; } = string.Empty;
+
+        public float Price { get; private set; }
+
+        public static Services CreateService(int id, string name, float price)
+        {
+            return new Services
+            {
+                Id = id,
+                Name = name,
+                Price = price
+            };
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Entities/ServicesDeal.cs

@@ -0,0 +1,21 @@
+namespace RealEstateTransactions.Entities
+{
+    public class ServicesDeal
+    {
+        public int ServicesId { get; private set; }
+
+        public int DealId { get; private set; }
+
+        public float ExecutionTime { get; private set; }
+
+        public static ServicesDeal CreateServicesDeal(int servicesId, int dealId, float executionTime)
+        {
+            return new ServicesDeal
+            {
+                ServicesId = servicesId,
+                DealId = dealId,
+                ExecutionTime = executionTime
+            };
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Form1.Designer.cs

@@ -1,39 +0,0 @@
-namespace RealEstateTransactions
-{
-    partial class Form1
-    {
-        /// <summary>
-        ///  Required designer variable.
-        /// </summary>
-        private System.ComponentModel.IContainer components = null;
-
-        /// <summary>
-        ///  Clean up any resources being used.
-        /// </summary>
-        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
-        protected override void Dispose(bool disposing)
-        {
-            if (disposing && (components != null))
-            {
-                components.Dispose();
-            }
-            base.Dispose(disposing);
-        }
-
-        #region Windows Form Designer generated code
-
-        /// <summary>
-        ///  Required method for Designer support - do not modify
-        ///  the contents of this method with the code editor.
-        /// </summary>
-        private void InitializeComponent()
-        {
-            this.components = new System.ComponentModel.Container();
-            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.ClientSize = new System.Drawing.Size(800, 450);
-            this.Text = "Form1";
-        }
-
-        #endregion
-    }
-}

RealEstateTransactions/RealEstateTransactions/Form1.cs

@@ -1,10 +0,0 @@
-namespace RealEstateTransactions
-{
-    public partial class Form1 : Form
-    {
-        public Form1()
-        {
-            InitializeComponent();
-        }
-    }
-}

RealEstateTransactions/RealEstateTransactions/FormGeneral.Designer.cs

@@ -0,0 +1,139 @@
+namespace RealEstateTransactions
+{
+    partial class FormGeneral
+    {
+        /// <summary>
+        ///  Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        ///  Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        ///  Required method for Designer support - do not modify
+        ///  the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            menuStrip1 = new MenuStrip();
+            справочникиToolStripMenuItem = new ToolStripMenuItem();
+            квартирыToolStripMenuItem = new ToolStripMenuItem();
+            покупателиToolStripMenuItem = new ToolStripMenuItem();
+            услугиToolStripMenuItem = new ToolStripMenuItem();
+            операцииToolStripMenuItem = new ToolStripMenuItem();
+            допродажныеУслугиToolStripMenuItem = new ToolStripMenuItem();
+            сделкиToolStripMenuItem = new ToolStripMenuItem();
+            отчётToolStripMenuItem = new ToolStripMenuItem();
+            menuStrip1.SuspendLayout();
+            SuspendLayout();
+            // 
+            // menuStrip1
+            // 
+            menuStrip1.ImageScalingSize = new Size(20, 20);
+            menuStrip1.Items.AddRange(new ToolStripItem[] { справочникиToolStripMenuItem, операцииToolStripMenuItem, отчётToolStripMenuItem });
+            menuStrip1.Location = new Point(0, 0);
+            menuStrip1.Name = "menuStrip1";
+            menuStrip1.Size = new Size(800, 28);
+            menuStrip1.TabIndex = 0;
+            menuStrip1.Text = "menuStrip1";
+            // 
+            // справочникиToolStripMenuItem
+            // 
+            справочникиToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { квартирыToolStripMenuItem, покупателиToolStripMenuItem, услугиToolStripMenuItem });
+            справочникиToolStripMenuItem.Name = "справочникиToolStripMenuItem";
+            справочникиToolStripMenuItem.Size = new Size(117, 24);
+            справочникиToolStripMenuItem.Text = "Справочники";
+            // 
+            // квартирыToolStripMenuItem
+            // 
+            квартирыToolStripMenuItem.Name = "квартирыToolStripMenuItem";
+            квартирыToolStripMenuItem.Size = new Size(224, 26);
+            квартирыToolStripMenuItem.Text = "Квартиры";
+            квартирыToolStripMenuItem.Click += КвартирыToolStripMenuItem_Click;
+            // 
+            // покупателиToolStripMenuItem
+            // 
+            покупателиToolStripMenuItem.Name = "покупателиToolStripMenuItem";
+            покупателиToolStripMenuItem.Size = new Size(224, 26);
+            покупателиToolStripMenuItem.Text = "Покупатели";
+            покупателиToolStripMenuItem.Click += ПокупателиToolStripMenuItem_Click;
+            // 
+            // услугиToolStripMenuItem
+            // 
+            услугиToolStripMenuItem.Name = "услугиToolStripMenuItem";
+            услугиToolStripMenuItem.Size = new Size(224, 26);
+            услугиToolStripMenuItem.Text = "Услуги";
+            услугиToolStripMenuItem.Click += УслугиToolStripMenuItem_Click;
+            // 
+            // операцииToolStripMenuItem
+            // 
+            операцииToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { допродажныеУслугиToolStripMenuItem, сделкиToolStripMenuItem });
+            операцииToolStripMenuItem.Name = "операцииToolStripMenuItem";
+            операцииToolStripMenuItem.Size = new Size(95, 24);
+            операцииToolStripMenuItem.Text = "Операции";
+            // 
+            // допродажныеУслугиToolStripMenuItem
+            // 
+            допродажныеУслугиToolStripMenuItem.Name = "допродажныеУслугиToolStripMenuItem";
+            допродажныеУслугиToolStripMenuItem.Size = new Size(241, 26);
+            допродажныеУслугиToolStripMenuItem.Text = "Допродажные услуги";
+            допродажныеУслугиToolStripMenuItem.Click += ДопродажныеУслугиToolStripMenuItem_Click;
+            // 
+            // сделкиToolStripMenuItem
+            // 
+            сделкиToolStripMenuItem.Name = "сделкиToolStripMenuItem";
+            сделкиToolStripMenuItem.Size = new Size(241, 26);
+            сделкиToolStripMenuItem.Text = "Сделки";
+            сделкиToolStripMenuItem.Click += СделкиToolStripMenuItem_Click;
+            // 
+            // отчётToolStripMenuItem
+            // 
+            отчётToolStripMenuItem.Name = "отчётToolStripMenuItem";
+            отчётToolStripMenuItem.Size = new Size(73, 24);
+            отчётToolStripMenuItem.Text = "Отчёты";
+            // 
+            // FormGeneral
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            BackgroundImage = Properties.Resources.фон;
+            BackgroundImageLayout = ImageLayout.Stretch;
+            ClientSize = new Size(800, 450);
+            Controls.Add(menuStrip1);
+            DoubleBuffered = true;
+            MainMenuStrip = menuStrip1;
+            Name = "FormGeneral";
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "Недвижимость";
+            menuStrip1.ResumeLayout(false);
+            menuStrip1.PerformLayout();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private MenuStrip menuStrip1;
+        private ToolStripMenuItem справочникиToolStripMenuItem;
+        private ToolStripMenuItem квартирыToolStripMenuItem;
+        private ToolStripMenuItem покупателиToolStripMenuItem;
+        private ToolStripMenuItem операцииToolStripMenuItem;
+        private ToolStripMenuItem допродажныеУслугиToolStripMenuItem;
+        private ToolStripMenuItem отчётToolStripMenuItem;
+        private ToolStripMenuItem услугиToolStripMenuItem;
+        private ToolStripMenuItem сделкиToolStripMenuItem;
+    }
+}

RealEstateTransactions/RealEstateTransactions/FormGeneral.cs

@@ -0,0 +1,77 @@
+using Unity;
+using RealEstateTransactions.Forms;
+using RealEstateTransactions.Entities;
+
+namespace RealEstateTransactions
+{
+    public partial class FormGeneral : Form
+    {
+        private readonly IUnityContainer _container;
+
+        public FormGeneral(IUnityContainer container)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentNullException(nameof(container));
+        }
+
+        private void ÊâàðòèðûToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormApartments>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ÏîêóïàòåëèToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormBuyers>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ÑäåëêèToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormDeals>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ÓñëóãèToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormServices>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ÄîïðîäàæíûåÓñëóãèToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormPreSalesServices>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/FormGeneral.resx

@@ -0,0 +1,123 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="menuStrip1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+</root>

RealEstateTransactions/RealEstateTransactions/Forms/FormApartment.Designer.cs

@@ -0,0 +1,268 @@
+namespace RealEstateTransactions.Forms
+{
+    partial class FormApartment
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            comboBoxAgency = new ComboBox();
+            labelAgency = new Label();
+            labelformFactor = new Label();
+            labelArea = new Label();
+            labelPricePerSM = new Label();
+            labelBasePrice = new Label();
+            labelDesiredPrice = new Label();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            numericUpDownArea = new NumericUpDown();
+            numericUpDownPricePerSM = new NumericUpDown();
+            numericUpDownDesiredPrice = new NumericUpDown();
+            numericUpDownBasePrice = new NumericUpDown();
+            checkedListBoxFormFactor = new CheckedListBox();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownArea).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownPricePerSM).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownDesiredPrice).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownBasePrice).BeginInit();
+            SuspendLayout();
+            // 
+            // comboBoxAgency
+            // 
+            comboBoxAgency.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxAgency.Font = new Font("Segoe UI", 14F);
+            comboBoxAgency.FormattingEnabled = true;
+            comboBoxAgency.Location = new Point(336, 6);
+            comboBoxAgency.Name = "comboBoxAgency";
+            comboBoxAgency.Size = new Size(217, 39);
+            comboBoxAgency.TabIndex = 0;
+            // 
+            // labelAgency
+            // 
+            labelAgency.AutoSize = true;
+            labelAgency.Font = new Font("Segoe UI", 14F);
+            labelAgency.Location = new Point(12, 9);
+            labelAgency.Name = "labelAgency";
+            labelAgency.Size = new Size(312, 32);
+            labelAgency.TabIndex = 10;
+            labelAgency.Text = "Агенство   -  -  -  -  -  -  -  -";
+            // 
+            // labelformFactor
+            // 
+            labelformFactor.AutoSize = true;
+            labelformFactor.Font = new Font("Segoe UI", 14F);
+            labelformFactor.Location = new Point(12, 73);
+            labelformFactor.Name = "labelformFactor";
+            labelformFactor.Size = new Size(271, 32);
+            labelformFactor.TabIndex = 2;
+            labelformFactor.Text = "Вид квартиры   -  -  -  -";
+            // 
+            // labelArea
+            // 
+            labelArea.AutoSize = true;
+            labelArea.Font = new Font("Segoe UI", 14F);
+            labelArea.Location = new Point(12, 265);
+            labelArea.Name = "labelArea";
+            labelArea.Size = new Size(382, 32);
+            labelArea.TabIndex = 4;
+            labelArea.Text = "Площадь квартиры (м2)   -  -  -  -";
+            // 
+            // labelPricePerSM
+            // 
+            labelPricePerSM.AutoSize = true;
+            labelPricePerSM.Font = new Font("Segoe UI", 14F);
+            labelPricePerSM.Location = new Point(12, 332);
+            labelPricePerSM.Name = "labelPricePerSM";
+            labelPricePerSM.Size = new Size(380, 32);
+            labelPricePerSM.TabIndex = 11;
+            labelPricePerSM.Text = "Цена квадратного метра (руб)   -";
+            // 
+            // labelBasePrice
+            // 
+            labelBasePrice.AutoSize = true;
+            labelBasePrice.Font = new Font("Segoe UI", 14F);
+            labelBasePrice.Location = new Point(12, 397);
+            labelBasePrice.Name = "labelBasePrice";
+            labelBasePrice.Size = new Size(278, 32);
+            labelBasePrice.TabIndex = 12;
+            labelBasePrice.Text = "Базовая цена (руб)   -  -";
+            // 
+            // labelDesiredPrice
+            // 
+            labelDesiredPrice.AutoSize = true;
+            labelDesiredPrice.Font = new Font("Segoe UI", 14F);
+            labelDesiredPrice.Location = new Point(12, 451);
+            labelDesiredPrice.Name = "labelDesiredPrice";
+            labelDesiredPrice.Size = new Size(281, 32);
+            labelDesiredPrice.TabIndex = 13;
+            labelDesiredPrice.Text = "Цена от агенства (руб) -";
+            // 
+            // buttonSave
+            // 
+            buttonSave.Font = new Font("Segoe UI", 14F);
+            buttonSave.Location = new Point(77, 517);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(150, 41);
+            buttonSave.TabIndex = 5;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Font = new Font("Segoe UI", 14F);
+            buttonCancel.Location = new Point(336, 517);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(150, 41);
+            buttonCancel.TabIndex = 6;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // numericUpDownArea
+            // 
+            numericUpDownArea.BorderStyle = BorderStyle.FixedSingle;
+            numericUpDownArea.DecimalPlaces = 1;
+            numericUpDownArea.Font = new Font("Segoe UI", 14F);
+            numericUpDownArea.Increment = new decimal(new int[] { 5, 0, 0, 0 });
+            numericUpDownArea.Location = new Point(403, 272);
+            numericUpDownArea.Maximum = new decimal(new int[] { 1000, 0, 0, 0 });
+            numericUpDownArea.Minimum = new decimal(new int[] { 1, 0, 0, 0 });
+            numericUpDownArea.Name = "numericUpDownArea";
+            numericUpDownArea.Size = new Size(150, 39);
+            numericUpDownArea.TabIndex = 2;
+            numericUpDownArea.TextAlign = HorizontalAlignment.Center;
+            numericUpDownArea.Value = new decimal(new int[] { 1, 0, 0, 0 });
+            numericUpDownArea.ValueChanged += NumericUpDownArea_ValueChanged;
+            // 
+            // numericUpDownPricePerSM
+            // 
+            numericUpDownPricePerSM.BorderStyle = BorderStyle.FixedSingle;
+            numericUpDownPricePerSM.DecimalPlaces = 2;
+            numericUpDownPricePerSM.Font = new Font("Segoe UI", 14F);
+            numericUpDownPricePerSM.Increment = new decimal(new int[] { 5, 0, 0, 0 });
+            numericUpDownPricePerSM.Location = new Point(403, 330);
+            numericUpDownPricePerSM.Maximum = new decimal(new int[] { 1000000, 0, 0, 0 });
+            numericUpDownPricePerSM.Minimum = new decimal(new int[] { 1, 0, 0, 0 });
+            numericUpDownPricePerSM.Name = "numericUpDownPricePerSM";
+            numericUpDownPricePerSM.Size = new Size(150, 39);
+            numericUpDownPricePerSM.TabIndex = 3;
+            numericUpDownPricePerSM.TextAlign = HorizontalAlignment.Center;
+            numericUpDownPricePerSM.ThousandsSeparator = true;
+            numericUpDownPricePerSM.Value = new decimal(new int[] { 1, 0, 0, 0 });
+            numericUpDownPricePerSM.ValueChanged += NumericUpDownPricePerSM_ValueChanged;
+            // 
+            // numericUpDownDesiredPrice
+            // 
+            numericUpDownDesiredPrice.BorderStyle = BorderStyle.FixedSingle;
+            numericUpDownDesiredPrice.DecimalPlaces = 2;
+            numericUpDownDesiredPrice.Font = new Font("Segoe UI", 14F);
+            numericUpDownDesiredPrice.Increment = new decimal(new int[] { 5, 0, 0, 0 });
+            numericUpDownDesiredPrice.Location = new Point(294, 449);
+            numericUpDownDesiredPrice.Maximum = new decimal(new int[] { 1000000000, 0, 0, 0 });
+            numericUpDownDesiredPrice.Minimum = new decimal(new int[] { 1, 0, 0, 0 });
+            numericUpDownDesiredPrice.Name = "numericUpDownDesiredPrice";
+            numericUpDownDesiredPrice.Size = new Size(259, 39);
+            numericUpDownDesiredPrice.TabIndex = 4;
+            numericUpDownDesiredPrice.TextAlign = HorizontalAlignment.Center;
+            numericUpDownDesiredPrice.ThousandsSeparator = true;
+            numericUpDownDesiredPrice.Value = new decimal(new int[] { 1, 0, 0, 0 });
+            // 
+            // numericUpDownBasePrice
+            // 
+            numericUpDownBasePrice.BorderStyle = BorderStyle.FixedSingle;
+            numericUpDownBasePrice.DecimalPlaces = 2;
+            numericUpDownBasePrice.Font = new Font("Segoe UI", 14F);
+            numericUpDownBasePrice.Increment = new decimal(new int[] { 5, 0, 0, 0 });
+            numericUpDownBasePrice.InterceptArrowKeys = false;
+            numericUpDownBasePrice.Location = new Point(294, 395);
+            numericUpDownBasePrice.Maximum = new decimal(new int[] { 1000000000, 0, 0, 0 });
+            numericUpDownBasePrice.Minimum = new decimal(new int[] { 1, 0, 0, 0 });
+            numericUpDownBasePrice.Name = "numericUpDownBasePrice";
+            numericUpDownBasePrice.ReadOnly = true;
+            numericUpDownBasePrice.Size = new Size(259, 39);
+            numericUpDownBasePrice.TabIndex = 14;
+            numericUpDownBasePrice.TabStop = false;
+            numericUpDownBasePrice.TextAlign = HorizontalAlignment.Center;
+            numericUpDownBasePrice.ThousandsSeparator = true;
+            numericUpDownBasePrice.Value = new decimal(new int[] { 1, 0, 0, 0 });
+            // 
+            // checkedListBoxFormFactor
+            // 
+            checkedListBoxFormFactor.BorderStyle = BorderStyle.FixedSingle;
+            checkedListBoxFormFactor.Font = new Font("Segoe UI", 14F);
+            checkedListBoxFormFactor.FormattingEnabled = true;
+            checkedListBoxFormFactor.Location = new Point(289, 73);
+            checkedListBoxFormFactor.Name = "checkedListBoxFormFactor";
+            checkedListBoxFormFactor.Size = new Size(264, 172);
+            checkedListBoxFormFactor.TabIndex = 1;
+            // 
+            // FormApartment
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(577, 575);
+            Controls.Add(checkedListBoxFormFactor);
+            Controls.Add(numericUpDownBasePrice);
+            Controls.Add(numericUpDownDesiredPrice);
+            Controls.Add(numericUpDownPricePerSM);
+            Controls.Add(numericUpDownArea);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(labelDesiredPrice);
+            Controls.Add(labelBasePrice);
+            Controls.Add(labelPricePerSM);
+            Controls.Add(labelArea);
+            Controls.Add(labelformFactor);
+            Controls.Add(labelAgency);
+            Controls.Add(comboBoxAgency);
+            Name = "FormApartment";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Квартира";
+            ((System.ComponentModel.ISupportInitialize)numericUpDownArea).EndInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownPricePerSM).EndInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownDesiredPrice).EndInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownBasePrice).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private ComboBox comboBoxAgency;
+        private Label labelAgency;
+        private Label labelformFactor;
+        private Label labelArea;
+        private Label labelPricePerSM;
+        private Label labelBasePrice;
+        private Label labelDesiredPrice;
+        private Button buttonSave;
+        private Button buttonCancel;
+        private NumericUpDown numericUpDownArea;
+        private NumericUpDown numericUpDownPricePerSM;
+        private NumericUpDown numericUpDownDesiredPrice;
+        private NumericUpDown numericUpDownBasePrice;
+        private CheckedListBox checkedListBoxFormFactor;
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormApartment.cs

@@ -0,0 +1,101 @@
+using RealEstateTransactions.Entities;
+using RealEstateTransactions.Repositories;
+using RealEstateTransactions.Entities.Enums;
+
+namespace RealEstateTransactions.Forms
+{
+    public partial class FormApartment : Form
+    {
+        private readonly IApartmentRepository _repository;
+
+        private int? _apartmentId;
+
+        public int Id
+        {
+            set
+            {
+                try
+                {
+                    var apartment = _repository.ReadApartment(value);
+
+                    if (apartment == null) throw new InvalidDataException(nameof(apartment));
+
+                    foreach (FormFactorType elem in Enum.GetValues(typeof(FormFactorType)))
+                    {
+                        if ((elem & apartment.FormFactorId) != 0)
+                            checkedListBoxFormFactor.SetItemChecked(checkedListBoxFormFactor.Items.IndexOf(elem), true);
+                    }
+
+                    comboBoxAgency.SelectedIndex = (int)apartment.AgencyId;
+                    numericUpDownArea.Value = (decimal)apartment.Area;
+                    numericUpDownPricePerSM.Value = (decimal)apartment.PricePerSM;
+                    numericUpDownBasePrice.Value = (decimal)apartment.BasePrice;
+                    numericUpDownDesiredPrice.Value = (decimal)apartment.DesiredPrice;
+
+                    _apartmentId = value;
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка при получении данных",
+                        MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    return;
+                }
+            }
+        }
+
+        public FormApartment(IApartmentRepository repository)
+        {
+            InitializeComponent();
+            _repository = repository ?? throw new ArgumentNullException(nameof(repository));
+            comboBoxAgency.DataSource = Enum.GetValues(typeof(AgencyType));
+
+            foreach (var elem in Enum.GetValues(typeof(FormFactorType))) checkedListBoxFormFactor.Items.Add(elem);
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (comboBoxAgency.SelectedIndex == -1 || checkedListBoxFormFactor.CheckedItems.Count == 0)
+                {
+                    throw new Exception("Имеются незаполненные поля");
+                }
+                
+                if (_apartmentId.HasValue)
+                {
+                    _repository.UpdateApartment(CreateApartment(_apartmentId.Value));
+                }
+                else
+                {
+                    _repository.CreateApartment(CreateApartment(0));
+                }
+
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при сохранении",
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e) => Close();
+
+        private Apartment CreateApartment(int Id)
+        {
+            FormFactorType formFactorType = FormFactorType.None;
+            foreach (FormFactorType elem in checkedListBoxFormFactor.CheckedItems) formFactorType |= elem;
+
+            return Apartment.CreateApartment(Id,
+            (AgencyType)comboBoxAgency.SelectedIndex, formFactorType,
+            (float)numericUpDownArea.Value, (float)numericUpDownPricePerSM.Value,
+            (float)numericUpDownBasePrice.Value, (float)numericUpDownDesiredPrice.Value);
+        }
+
+        private void NumericUpDownArea_ValueChanged(object sender, EventArgs e) =>
+            numericUpDownBasePrice.Value = numericUpDownArea.Value * numericUpDownPricePerSM.Value;
+
+        private void NumericUpDownPricePerSM_ValueChanged(object sender, EventArgs e) =>
+            numericUpDownBasePrice.Value = numericUpDownArea.Value * numericUpDownPricePerSM.Value;
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormApartment.resx

@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
 <root>
-  <!-- 
-    Microsoft ResX Schema 
-    
+  <!--
+    Microsoft ResX Schema
+
     Version 2.0
-    
-    The primary goals of this format is to allow a simple XML format 
-    that is mostly human readable. The generation and parsing of the 
-    various data types are done through the TypeConverter classes 
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
     associated with the data types.
-    
+
     Example:
-    
+
     ... ado.net/XML headers & schema ...
     <resheader name="resmimetype">text/microsoft-resx</resheader>
     <resheader name="version">2.0</resheader>
@@ -26,36 +26,36 @@
         <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
         <comment>This is a comment</comment>
     </data>
-                
-    There are any number of "resheader" rows that contain simple 
+
+    There are any number of "resheader" rows that contain simple
     name/value pairs.
-    
-    Each data row contains a name, and value. The row also contains a 
-    type or mimetype. Type corresponds to a .NET class that support 
-    text/value conversion through the TypeConverter architecture. 
-    Classes that don't support this are serialized and stored with the 
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
     mimetype set.
-    
-    The mimetype is used for serialized objects, and tells the 
-    ResXResourceReader how to depersist the object. This is currently not 
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
     extensible. For a given mimetype the value must be set accordingly:
-    
-    Note - application/x-microsoft.net.object.binary.base64 is the format 
-    that the ResXResourceWriter will generate, however the reader can 
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
     read any of the formats listed below.
-    
+
     mimetype: application/x-microsoft.net.object.binary.base64
-    value   : The object must be serialized with 
+    value   : The object must be serialized with
             : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
             : and then encoded with base64 encoding.
-    
+
     mimetype: application/x-microsoft.net.object.soap.base64
-    value   : The object must be serialized with 
+    value   : The object must be serialized with
             : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
             : and then encoded with base64 encoding.
 
     mimetype: application/x-microsoft.net.object.bytearray.base64
-    value   : The object must be serialized into a byte array 
+    value   : The object must be serialized into a byte array
             : using a System.ComponentModel.TypeConverter
             : and then encoded with base64 encoding.
     -->

RealEstateTransactions/RealEstateTransactions/Forms/FormApartments.Designer.cs

@@ -0,0 +1,128 @@
+namespace RealEstateTransactions.Forms
+{
+    partial class FormApartments
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            panelTools = new Panel();
+            buttonDelete = new Button();
+            buttonUpdate = new Button();
+            buttonAdd = new Button();
+            dataGridView = new DataGridView();
+            panelTools.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // panelTools
+            // 
+            panelTools.Controls.Add(buttonDelete);
+            panelTools.Controls.Add(buttonUpdate);
+            panelTools.Controls.Add(buttonAdd);
+            panelTools.Dock = DockStyle.Right;
+            panelTools.Location = new Point(851, 0);
+            panelTools.Name = "panelTools";
+            panelTools.Size = new Size(131, 553);
+            panelTools.TabIndex = 0;
+            // 
+            // buttonDelete
+            // 
+            buttonDelete.BackgroundImage = Properties.Resources.Delete;
+            buttonDelete.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonDelete.Location = new Point(28, 333);
+            buttonDelete.Name = "buttonDelete";
+            buttonDelete.Size = new Size(80, 80);
+            buttonDelete.TabIndex = 2;
+            buttonDelete.UseVisualStyleBackColor = true;
+            buttonDelete.Click += ButtonDelete_Click;
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.BackgroundImage = Properties.Resources.Update;
+            buttonUpdate.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonUpdate.Location = new Point(28, 204);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(80, 80);
+            buttonUpdate.TabIndex = 1;
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += ButtonUpdate_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.BackgroundImage = Properties.Resources.Add;
+            buttonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonAdd.Location = new Point(28, 73);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(80, 80);
+            buttonAdd.TabIndex = 0;
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.AllowUserToResizeColumns = false;
+            dataGridView.AllowUserToResizeRows = false;
+            dataGridView.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Fill;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(851, 553);
+            dataGridView.TabIndex = 1;
+            dataGridView.TabStop = false;
+            // 
+            // FormApartments
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(982, 553);
+            Controls.Add(dataGridView);
+            Controls.Add(panelTools);
+            Name = "FormApartments";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Квартиры";
+            Load += FormApartments_Load;
+            panelTools.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panelTools;
+        private Button buttonDelete;
+        private Button buttonUpdate;
+        private Button buttonAdd;
+        private DataGridView dataGridView;
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormApartments.cs

@@ -0,0 +1,95 @@
+using Unity;
+using RealEstateTransactions.Repositories;
+
+namespace RealEstateTransactions.Forms
+{
+    public partial class FormApartments : Form
+    {
+        private readonly IUnityContainer _container;
+
+        private readonly IApartmentRepository _repository;
+
+        public FormApartments(IUnityContainer container, IApartmentRepository repository)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentNullException(nameof(container));
+            _repository = repository ?? throw new ArgumentNullException(nameof(repository));
+        }
+
+        private void FormApartments_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка загрузки", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormApartment>().ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при добавлении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonUpdate_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFormSelectedRow(out var findId)) return;
+
+            try
+            {
+                var form = _container.Resolve<FormApartment>();
+                form.Id = findId;
+                form.ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при изменении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonDelete_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFormSelectedRow(out var findId)) return;
+
+            if (MessageBox.Show("Удалить запись?", "Удаление", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
+                != DialogResult.Yes) return;
+
+            try
+            {
+                _repository.DeleteApartment(findId);
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridView.DataSource = _repository.ReadApartments();
+
+        private bool TryGetIdentifierFormSelectedRow(out int id)
+        {
+            id = 0;
+
+            if (dataGridView.SelectedRows.Count < 1)
+            {
+                MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return false;
+            }
+
+            id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+            return true;
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormApartments.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

RealEstateTransactions/RealEstateTransactions/Forms/FormBuyer.Designer.cs

@@ -0,0 +1,164 @@
+namespace RealEstateTransactions.Forms
+{
+    partial class FormBuyer
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelFullName = new Label();
+            textBoxFullName = new TextBox();
+            labelPassportSeries = new Label();
+            numericUpDownPassportSeries = new NumericUpDown();
+            labelPassportNumber = new Label();
+            numericUpDownPassportNumber = new NumericUpDown();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownPassportSeries).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownPassportNumber).BeginInit();
+            SuspendLayout();
+            // 
+            // labelFullName
+            // 
+            labelFullName.AutoSize = true;
+            labelFullName.Font = new Font("Segoe UI", 14F);
+            labelFullName.Location = new Point(12, 9);
+            labelFullName.Name = "labelFullName";
+            labelFullName.Size = new Size(67, 32);
+            labelFullName.TabIndex = 0;
+            labelFullName.Text = "ФИО";
+            // 
+            // textBoxFullName
+            // 
+            textBoxFullName.BorderStyle = BorderStyle.FixedSingle;
+            textBoxFullName.Font = new Font("Segoe UI", 14F);
+            textBoxFullName.Location = new Point(85, 7);
+            textBoxFullName.Name = "textBoxFullName";
+            textBoxFullName.Size = new Size(357, 39);
+            textBoxFullName.TabIndex = 0;
+            textBoxFullName.TextAlign = HorizontalAlignment.Center;
+            // 
+            // labelPassportSeries
+            // 
+            labelPassportSeries.AutoSize = true;
+            labelPassportSeries.Font = new Font("Segoe UI", 14F);
+            labelPassportSeries.Location = new Point(12, 68);
+            labelPassportSeries.Name = "labelPassportSeries";
+            labelPassportSeries.Size = new Size(317, 32);
+            labelPassportSeries.TabIndex = 1;
+            labelPassportSeries.Text = "Серия паспорта   -  -  -  -  -";
+            // 
+            // numericUpDownPassportSeries
+            // 
+            numericUpDownPassportSeries.BorderStyle = BorderStyle.FixedSingle;
+            numericUpDownPassportSeries.Font = new Font("Segoe UI", 14F);
+            numericUpDownPassportSeries.Location = new Point(345, 66);
+            numericUpDownPassportSeries.Maximum = new decimal(new int[] { 9999, 0, 0, 0 });
+            numericUpDownPassportSeries.Minimum = new decimal(new int[] { 1111, 0, 0, 0 });
+            numericUpDownPassportSeries.Name = "numericUpDownPassportSeries";
+            numericUpDownPassportSeries.Size = new Size(97, 39);
+            numericUpDownPassportSeries.TabIndex = 1;
+            numericUpDownPassportSeries.TextAlign = HorizontalAlignment.Center;
+            numericUpDownPassportSeries.Value = new decimal(new int[] { 1111, 0, 0, 0 });
+            // 
+            // labelPassportNumber
+            // 
+            labelPassportNumber.AutoSize = true;
+            labelPassportNumber.Font = new Font("Segoe UI", 14F);
+            labelPassportNumber.Location = new Point(12, 130);
+            labelPassportNumber.Name = "labelPassportNumber";
+            labelPassportNumber.Size = new Size(300, 32);
+            labelPassportNumber.TabIndex = 2;
+            labelPassportNumber.Text = "Номер паспорта   -  -  -  -";
+            // 
+            // numericUpDownPassportNumber
+            // 
+            numericUpDownPassportNumber.BorderStyle = BorderStyle.FixedSingle;
+            numericUpDownPassportNumber.Font = new Font("Segoe UI", 14F);
+            numericUpDownPassportNumber.Location = new Point(318, 128);
+            numericUpDownPassportNumber.Maximum = new decimal(new int[] { 999999, 0, 0, 0 });
+            numericUpDownPassportNumber.Minimum = new decimal(new int[] { 111111, 0, 0, 0 });
+            numericUpDownPassportNumber.Name = "numericUpDownPassportNumber";
+            numericUpDownPassportNumber.Size = new Size(124, 39);
+            numericUpDownPassportNumber.TabIndex = 2;
+            numericUpDownPassportNumber.TextAlign = HorizontalAlignment.Center;
+            numericUpDownPassportNumber.Value = new decimal(new int[] { 111111, 0, 0, 0 });
+            // 
+            // buttonSave
+            // 
+            buttonSave.Font = new Font("Segoe UI", 14F);
+            buttonSave.Location = new Point(49, 176);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(147, 50);
+            buttonSave.TabIndex = 3;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Font = new Font("Segoe UI", 14F);
+            buttonCancel.Location = new Point(258, 176);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(147, 50);
+            buttonCancel.TabIndex = 4;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // FormBuyer
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(455, 238);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(numericUpDownPassportNumber);
+            Controls.Add(labelPassportNumber);
+            Controls.Add(numericUpDownPassportSeries);
+            Controls.Add(labelPassportSeries);
+            Controls.Add(textBoxFullName);
+            Controls.Add(labelFullName);
+            Name = "FormBuyer";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Покупатель";
+            ((System.ComponentModel.ISupportInitialize)numericUpDownPassportSeries).EndInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownPassportNumber).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelFullName;
+        private TextBox textBoxFullName;
+        private Label labelPassportSeries;
+        private NumericUpDown numericUpDownPassportSeries;
+        private Label labelPassportNumber;
+        private NumericUpDown numericUpDownPassportNumber;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormBuyer.cs

@@ -0,0 +1,71 @@
+using RealEstateTransactions.Entities;
+using RealEstateTransactions.Repositories;
+
+namespace RealEstateTransactions.Forms
+{
+    public partial class FormBuyer : Form
+    {
+        private readonly IBuyerRepository _repository;
+
+        private int? _buyerId;
+
+        public int Id
+        {
+            set
+            {
+                try
+                {
+                    var buyer = _repository.ReadBuyer(value);
+
+                    if (buyer == null) throw new InvalidDataException(nameof(buyer));
+
+                    textBoxFullName.Text = buyer.FullName;
+                    numericUpDownPassportSeries.Value = buyer.PassportSeries;
+                    numericUpDownPassportNumber.Value = buyer.PassportNumber;
+
+                    _buyerId = value;
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка при получении данных", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    return;
+                }
+            }
+        }
+
+        public FormBuyer(IBuyerRepository repository)
+        {
+            InitializeComponent();
+            _repository = repository ?? throw new ArgumentNullException(nameof(repository));
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (string.IsNullOrWhiteSpace(textBoxFullName.Text))
+                    throw new Exception("Имеются не заполненные поля");
+
+                if (_buyerId.HasValue)
+                {
+                    _repository.UpdateBuyer(CreateBuyer(_buyerId.Value));
+                }
+                else
+                {
+                    _repository.CreateBuyer(CreateBuyer(0));
+                }
+
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при сохранении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e) => Close();
+
+        private Buyer CreateBuyer(int id) => Buyer.CreateBuyer(id, textBoxFullName.Text,
+            (int)numericUpDownPassportSeries.Value, (int)numericUpDownPassportNumber.Value);
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormBuyer.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

RealEstateTransactions/RealEstateTransactions/Forms/FormBuyers.Designer.cs

@@ -0,0 +1,128 @@
+namespace RealEstateTransactions.Forms
+{
+    partial class FormBuyers
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            panelTools = new Panel();
+            buttonDelete = new Button();
+            buttonUpdate = new Button();
+            buttonAdd = new Button();
+            dataGridView = new DataGridView();
+            panelTools.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // panelTools
+            // 
+            panelTools.Controls.Add(buttonDelete);
+            panelTools.Controls.Add(buttonUpdate);
+            panelTools.Controls.Add(buttonAdd);
+            panelTools.Dock = DockStyle.Right;
+            panelTools.Location = new Point(850, 0);
+            panelTools.Name = "panelTools";
+            panelTools.Size = new Size(132, 553);
+            panelTools.TabIndex = 0;
+            // 
+            // buttonDelete
+            // 
+            buttonDelete.BackgroundImage = Properties.Resources.Delete;
+            buttonDelete.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonDelete.Location = new Point(27, 358);
+            buttonDelete.Name = "buttonDelete";
+            buttonDelete.Size = new Size(80, 80);
+            buttonDelete.TabIndex = 2;
+            buttonDelete.UseVisualStyleBackColor = true;
+            buttonDelete.Click += ButtonDelete_Click;
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.BackgroundImage = Properties.Resources.Update;
+            buttonUpdate.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonUpdate.Location = new Point(27, 223);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(80, 80);
+            buttonUpdate.TabIndex = 1;
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += ButtonUpdate_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.BackgroundImage = Properties.Resources.Add;
+            buttonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonAdd.Location = new Point(27, 88);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(80, 80);
+            buttonAdd.TabIndex = 0;
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.AllowUserToResizeColumns = false;
+            dataGridView.AllowUserToResizeRows = false;
+            dataGridView.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Fill;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(850, 553);
+            dataGridView.TabIndex = 1;
+            dataGridView.TabStop = false;
+            // 
+            // FormBuyers
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(982, 553);
+            Controls.Add(dataGridView);
+            Controls.Add(panelTools);
+            Name = "FormBuyers";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Покупатели";
+            Load += FormBuyers_Load;
+            panelTools.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panelTools;
+        private Button buttonAdd;
+        private Button buttonDelete;
+        private Button buttonUpdate;
+        private DataGridView dataGridView;
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormBuyers.cs

@@ -0,0 +1,96 @@
+using RealEstateTransactions.Repositories;
+using Unity;
+
+namespace RealEstateTransactions.Forms
+{
+    public partial class FormBuyers : Form
+    {
+        private readonly IUnityContainer _container;
+
+        private readonly IBuyerRepository _repository;
+
+        public FormBuyers(IUnityContainer container, IBuyerRepository repository)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentNullException(nameof(container));
+            _repository = repository ?? throw new ArgumentNullException(nameof(repository));
+        }
+
+        private void FormBuyers_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при загрузке", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormBuyer>().ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при добавлении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonUpdate_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFormSelectedRow(out var findId)) return;
+
+            try
+            {
+                var form = _container.Resolve<FormBuyer>();
+                form.Id = findId;
+                form.ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при изменении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonDelete_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFormSelectedRow(out var findId)) return;
+
+            if (MessageBox.Show("Удалить запись?", "Удаление", MessageBoxButtons.YesNo,
+                MessageBoxIcon.Question) == DialogResult.No) return;
+
+            try
+            {
+                _repository.DeleteBuyer(findId);
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridView.DataSource = _repository.ReadBuyers();
+
+        private bool TryGetIdentifierFormSelectedRow(out int id)
+        {
+            id = 0;
+
+            if (dataGridView.SelectedRows.Count < 1)
+            {
+                MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return false;
+            }
+
+            id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+
+            return true;
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormBuyers.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

RealEstateTransactions/RealEstateTransactions/Forms/FormDeal.Designer.cs

@@ -0,0 +1,244 @@
+namespace RealEstateTransactions.Forms
+{
+    partial class FormDeal
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelApartmentId = new Label();
+            comboBoxApartmentId = new ComboBox();
+            labelFullName = new Label();
+            comboBoxFullName = new ComboBox();
+            labelDealPrice = new Label();
+            numericUpDownDealPrice = new NumericUpDown();
+            labelDealDate = new Label();
+            dateTimePickerDealDate = new DateTimePicker();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            groupBoxDataGrid = new GroupBox();
+            dataGridView = new DataGridView();
+            ColumnService = new DataGridViewComboBoxColumn();
+            ColumnTimeSpan = new DataGridViewTextBoxColumn();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownDealPrice).BeginInit();
+            groupBoxDataGrid.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // labelApartmentId
+            // 
+            labelApartmentId.AutoSize = true;
+            labelApartmentId.Font = new Font("Segoe UI", 14F);
+            labelApartmentId.Location = new Point(12, 9);
+            labelApartmentId.Name = "labelApartmentId";
+            labelApartmentId.Size = new Size(349, 32);
+            labelApartmentId.TabIndex = 0;
+            labelApartmentId.Text = "ID квартиры   -  -  -  -  -  -  -  -";
+            // 
+            // comboBoxApartmentId
+            // 
+            comboBoxApartmentId.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxApartmentId.Font = new Font("Segoe UI", 14F);
+            comboBoxApartmentId.FormattingEnabled = true;
+            comboBoxApartmentId.Location = new Point(370, 6);
+            comboBoxApartmentId.Name = "comboBoxApartmentId";
+            comboBoxApartmentId.Size = new Size(151, 39);
+            comboBoxApartmentId.TabIndex = 0;
+            // 
+            // labelFullName
+            // 
+            labelFullName.AutoSize = true;
+            labelFullName.Font = new Font("Segoe UI", 14F);
+            labelFullName.Location = new Point(12, 76);
+            labelFullName.Name = "labelFullName";
+            labelFullName.Size = new Size(200, 32);
+            labelFullName.TabIndex = 1;
+            labelFullName.Text = "ФИО покупателя";
+            // 
+            // comboBoxFullName
+            // 
+            comboBoxFullName.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxFullName.Font = new Font("Segoe UI", 14F);
+            comboBoxFullName.FormattingEnabled = true;
+            comboBoxFullName.Location = new Point(218, 73);
+            comboBoxFullName.Name = "comboBoxFullName";
+            comboBoxFullName.Size = new Size(303, 39);
+            comboBoxFullName.TabIndex = 1;
+            // 
+            // labelDealPrice
+            // 
+            labelDealPrice.AutoSize = true;
+            labelDealPrice.Font = new Font("Segoe UI", 14F);
+            labelDealPrice.Location = new Point(12, 152);
+            labelDealPrice.Name = "labelDealPrice";
+            labelDealPrice.Size = new Size(214, 32);
+            labelDealPrice.TabIndex = 3;
+            labelDealPrice.Text = "Стоимость сделки";
+            // 
+            // numericUpDownDealPrice
+            // 
+            numericUpDownDealPrice.BorderStyle = BorderStyle.FixedSingle;
+            numericUpDownDealPrice.DecimalPlaces = 2;
+            numericUpDownDealPrice.Font = new Font("Segoe UI", 14F);
+            numericUpDownDealPrice.Location = new Point(232, 150);
+            numericUpDownDealPrice.Maximum = new decimal(new int[] { 1410065408, 2, 0, 0 });
+            numericUpDownDealPrice.Name = "numericUpDownDealPrice";
+            numericUpDownDealPrice.Size = new Size(289, 39);
+            numericUpDownDealPrice.TabIndex = 2;
+            numericUpDownDealPrice.TextAlign = HorizontalAlignment.Center;
+            numericUpDownDealPrice.ThousandsSeparator = true;
+            // 
+            // labelDealDate
+            // 
+            labelDealDate.AutoSize = true;
+            labelDealDate.Font = new Font("Segoe UI", 14F);
+            labelDealDate.Location = new Point(12, 219);
+            labelDealDate.Name = "labelDealDate";
+            labelDealDate.Size = new Size(251, 32);
+            labelDealDate.TabIndex = 4;
+            labelDealDate.Text = "Дата сделки   -  -  -  -";
+            // 
+            // dateTimePickerDealDate
+            // 
+            dateTimePickerDealDate.CalendarFont = new Font("Segoe UI", 14F);
+            dateTimePickerDealDate.Enabled = false;
+            dateTimePickerDealDate.Font = new Font("Segoe UI", 14F);
+            dateTimePickerDealDate.Location = new Point(271, 213);
+            dateTimePickerDealDate.Name = "dateTimePickerDealDate";
+            dateTimePickerDealDate.Size = new Size(250, 39);
+            dateTimePickerDealDate.TabIndex = 5;
+            dateTimePickerDealDate.TabStop = false;
+            dateTimePickerDealDate.Value = new DateTime(2024, 11, 22, 10, 0, 0, 0);
+            // 
+            // buttonSave
+            // 
+            buttonSave.Anchor = AnchorStyles.Bottom | AnchorStyles.Left;
+            buttonSave.Font = new Font("Segoe UI", 14F);
+            buttonSave.Location = new Point(66, 579);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(146, 63);
+            buttonSave.TabIndex = 3;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+            buttonCancel.Font = new Font("Segoe UI", 14F);
+            buttonCancel.Location = new Point(328, 579);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(146, 63);
+            buttonCancel.TabIndex = 4;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // groupBoxDataGrid
+            // 
+            groupBoxDataGrid.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+            groupBoxDataGrid.Controls.Add(dataGridView);
+            groupBoxDataGrid.Font = new Font("Segoe UI", 14F);
+            groupBoxDataGrid.Location = new Point(66, 283);
+            groupBoxDataGrid.Name = "groupBoxDataGrid";
+            groupBoxDataGrid.Size = new Size(408, 269);
+            groupBoxDataGrid.TabIndex = 6;
+            groupBoxDataGrid.TabStop = false;
+            groupBoxDataGrid.Text = "Услуги";
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToResizeColumns = false;
+            dataGridView.AllowUserToResizeRows = false;
+            dataGridView.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Columns.AddRange(new DataGridViewColumn[] { ColumnService, ColumnTimeSpan });
+            dataGridView.Dock = DockStyle.Fill;
+            dataGridView.Location = new Point(3, 35);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(402, 231);
+            dataGridView.TabIndex = 0;
+            dataGridView.TabStop = false;
+            // 
+            // ColumnService
+            // 
+            ColumnService.HeaderText = "Услуга";
+            ColumnService.MinimumWidth = 6;
+            ColumnService.Name = "ColumnService";
+            // 
+            // ColumnTimeSpan
+            // 
+            ColumnTimeSpan.HeaderText = "Время выполнения (ч)";
+            ColumnTimeSpan.MinimumWidth = 6;
+            ColumnTimeSpan.Name = "ColumnTimeSpan";
+            // 
+            // FormDeal
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(534, 654);
+            Controls.Add(groupBoxDataGrid);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(dateTimePickerDealDate);
+            Controls.Add(labelDealDate);
+            Controls.Add(numericUpDownDealPrice);
+            Controls.Add(labelDealPrice);
+            Controls.Add(comboBoxFullName);
+            Controls.Add(labelFullName);
+            Controls.Add(comboBoxApartmentId);
+            Controls.Add(labelApartmentId);
+            Name = "FormDeal";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Сделка";
+            ((System.ComponentModel.ISupportInitialize)numericUpDownDealPrice).EndInit();
+            groupBoxDataGrid.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelApartmentId;
+        private ComboBox comboBoxApartmentId;
+        private Label labelFullName;
+        private ComboBox comboBoxFullName;
+        private Label labelDealPrice;
+        private NumericUpDown numericUpDownDealPrice;
+        private Label labelDealDate;
+        private DateTimePicker dateTimePickerDealDate;
+        private Button buttonSave;
+        private Button buttonCancel;
+        private GroupBox groupBoxDataGrid;
+        private DataGridView dataGridView;
+        private DataGridViewComboBoxColumn ColumnService;
+        private DataGridViewTextBoxColumn ColumnTimeSpan;
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormDeal.cs

@@ -0,0 +1,68 @@
+using RealEstateTransactions.Entities;
+using RealEstateTransactions.Repositories;
+
+namespace RealEstateTransactions.Forms
+{
+    public partial class FormDeal : Form
+    {
+        private readonly IDealRepository _repository;
+
+        public FormDeal(IDealRepository repository, IApartmentRepository apartmentRepository,
+            IBuyerRepository buyerRepository, IServicesRepository servicesRepository)
+        {
+            InitializeComponent();
+            _repository = repository ?? throw new ArgumentNullException(nameof(repository));
+
+            comboBoxApartmentId.DataSource = apartmentRepository.ReadApartments();
+            comboBoxApartmentId.DisplayMember = "Id";
+            comboBoxApartmentId.ValueMember = "Id";
+
+            comboBoxFullName.DataSource = buyerRepository.ReadBuyers();
+            comboBoxFullName.DisplayMember = "FullName";
+            comboBoxFullName.ValueMember = "Id";
+
+            ColumnService.DataSource = servicesRepository.ReadServices();
+            ColumnService.DisplayMember = "Name";
+            ColumnService.ValueMember = "Id";
+
+            dateTimePickerDealDate.Value = DateTime.Now;
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (comboBoxApartmentId.SelectedItem == null || comboBoxFullName.SelectedItem == null 
+                    || dataGridView.RowCount < 1)
+                    throw new Exception("Имеются не заполненные поля");
+
+                _repository.CreateDeal(Deal.CreateDeal(0, (int)comboBoxApartmentId.SelectedValue!,
+                    (int)comboBoxFullName.SelectedValue!, (float)numericUpDownDealPrice.Value, 
+                    dateTimePickerDealDate.Value, CreateListFromDataGridView()));
+
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при сохранении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e) => Close();
+
+        private List<ServicesDeal> CreateListFromDataGridView()
+        {
+            var list = new List<ServicesDeal>();
+            foreach (DataGridViewRow row in dataGridView.Rows)
+            {
+                if (row.Cells["ColumnService"].Value == null ||
+                row.Cells["ColumnTimeSpan"].Value == null)
+                {
+                    continue;
+                }
+                list.Add(ServicesDeal.CreateServicesDeal((int)row.Cells["ColumnService"].Value, 0, (float)row.Cells["ColumnTimeSpan"].Value));
+            }
+            return list;
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormDeal.resx

@@ -0,0 +1,126 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="ColumnService.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="ColumnTimeSpan.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+</root>

RealEstateTransactions/RealEstateTransactions/Forms/FormDeals.Designer.cs

@@ -0,0 +1,114 @@
+namespace RealEstateTransactions.Entities
+{
+    partial class FormDeals
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            panelTools = new Panel();
+            buttonDelete = new Button();
+            buttonAdd = new Button();
+            dataGridView = new DataGridView();
+            panelTools.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // panelTools
+            // 
+            panelTools.Controls.Add(buttonDelete);
+            panelTools.Controls.Add(buttonAdd);
+            panelTools.Dock = DockStyle.Right;
+            panelTools.Location = new Point(851, 0);
+            panelTools.Name = "panelTools";
+            panelTools.Size = new Size(131, 553);
+            panelTools.TabIndex = 1;
+            // 
+            // buttonDelete
+            // 
+            buttonDelete.BackgroundImage = Properties.Resources.Delete;
+            buttonDelete.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonDelete.Location = new Point(28, 333);
+            buttonDelete.Name = "buttonDelete";
+            buttonDelete.Size = new Size(80, 80);
+            buttonDelete.TabIndex = 1;
+            buttonDelete.UseVisualStyleBackColor = true;
+            buttonDelete.Click += ButtonDelete_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.BackgroundImage = Properties.Resources.Add;
+            buttonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonAdd.Location = new Point(28, 73);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(80, 80);
+            buttonAdd.TabIndex = 0;
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.AllowUserToResizeColumns = false;
+            dataGridView.AllowUserToResizeRows = false;
+            dataGridView.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Fill;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(851, 553);
+            dataGridView.TabIndex = 2;
+            dataGridView.TabStop = false;
+            // 
+            // FormDeals
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(982, 553);
+            Controls.Add(dataGridView);
+            Controls.Add(panelTools);
+            Name = "FormDeals";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Сделки";
+            Load += FormDeals_Load;
+            panelTools.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panelTools;
+        private Button buttonDelete;
+        private Button buttonAdd;
+        private DataGridView dataGridView;
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormDeals.cs

@@ -0,0 +1,79 @@
+using RealEstateTransactions.Forms;
+using RealEstateTransactions.Repositories;
+using Unity;
+
+namespace RealEstateTransactions.Entities
+{
+    public partial class FormDeals : Form
+    {
+        private readonly IUnityContainer _container;
+
+        private readonly IDealRepository _repository;
+
+        public FormDeals(IUnityContainer container, IDealRepository repository)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentNullException(nameof(container));
+            _repository = repository ?? throw new ArgumentNullException(nameof(repository));
+        }
+
+        private void FormDeals_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка загрузки", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormDeal>().ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при добавлении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonDelete_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFormSelectedRow(out var findId)) return;
+
+            if (MessageBox.Show("Удалить запись?", "Удаление", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
+                != DialogResult.Yes) return;
+
+            try
+            {
+                _repository.DeleteDeal(findId);
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridView.DataSource = _repository.ReadDeals();
+
+        private bool TryGetIdentifierFormSelectedRow(out int id)
+        {
+            id = 0;
+
+            if (dataGridView.SelectedRows.Count < 1)
+            {
+                MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return false;
+            }
+
+            id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+            return true;
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormDeals.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

RealEstateTransactions/RealEstateTransactions/Forms/FormPreSalesService.Designer.cs

@@ -0,0 +1,159 @@
+namespace RealEstateTransactions.Forms
+{
+    partial class FormPreSalesService
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelApartmentId = new Label();
+            comboBoxApartmentId = new ComboBox();
+            labelName = new Label();
+            textBoxName = new TextBox();
+            labelCost = new Label();
+            numericUpDownCost = new NumericUpDown();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCost).BeginInit();
+            SuspendLayout();
+            // 
+            // labelApartmentId
+            // 
+            labelApartmentId.AutoSize = true;
+            labelApartmentId.Font = new Font("Segoe UI", 14F);
+            labelApartmentId.Location = new Point(12, 9);
+            labelApartmentId.Name = "labelApartmentId";
+            labelApartmentId.Size = new Size(270, 32);
+            labelApartmentId.TabIndex = 0;
+            labelApartmentId.Text = "ID квартиры  -  -  -  -  -";
+            // 
+            // comboBoxApartmentId
+            // 
+            comboBoxApartmentId.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxApartmentId.Font = new Font("Segoe UI", 14F);
+            comboBoxApartmentId.FormattingEnabled = true;
+            comboBoxApartmentId.Location = new Point(292, 6);
+            comboBoxApartmentId.Name = "comboBoxApartmentId";
+            comboBoxApartmentId.Size = new Size(151, 39);
+            comboBoxApartmentId.TabIndex = 0;
+            // 
+            // labelName
+            // 
+            labelName.AutoSize = true;
+            labelName.Font = new Font("Segoe UI", 14F);
+            labelName.Location = new Point(12, 83);
+            labelName.Name = "labelName";
+            labelName.Size = new Size(198, 32);
+            labelName.TabIndex = 1;
+            labelName.Text = "Название услуги";
+            // 
+            // textBoxName
+            // 
+            textBoxName.BorderStyle = BorderStyle.FixedSingle;
+            textBoxName.Font = new Font("Segoe UI", 14F);
+            textBoxName.Location = new Point(216, 81);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(227, 39);
+            textBoxName.TabIndex = 1;
+            textBoxName.TextAlign = HorizontalAlignment.Center;
+            // 
+            // labelCost
+            // 
+            labelCost.AutoSize = true;
+            labelCost.Font = new Font("Segoe UI", 14F);
+            labelCost.Location = new Point(12, 169);
+            labelCost.Name = "labelCost";
+            labelCost.Size = new Size(264, 32);
+            labelCost.TabIndex = 2;
+            labelCost.Text = "Стоимость услуги   -  -";
+            // 
+            // numericUpDownCost
+            // 
+            numericUpDownCost.BorderStyle = BorderStyle.FixedSingle;
+            numericUpDownCost.DecimalPlaces = 2;
+            numericUpDownCost.Font = new Font("Segoe UI", 14F);
+            numericUpDownCost.Location = new Point(272, 167);
+            numericUpDownCost.Maximum = new decimal(new int[] { 1000000, 0, 0, 0 });
+            numericUpDownCost.Name = "numericUpDownCost";
+            numericUpDownCost.Size = new Size(171, 39);
+            numericUpDownCost.TabIndex = 2;
+            numericUpDownCost.TextAlign = HorizontalAlignment.Center;
+            numericUpDownCost.ThousandsSeparator = true;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Font = new Font("Segoe UI", 14F);
+            buttonSave.Location = new Point(48, 228);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(144, 57);
+            buttonSave.TabIndex = 3;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Font = new Font("Segoe UI", 14F);
+            buttonCancel.Location = new Point(254, 228);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(144, 57);
+            buttonCancel.TabIndex = 4;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormPreSalesService
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(455, 294);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(numericUpDownCost);
+            Controls.Add(labelCost);
+            Controls.Add(textBoxName);
+            Controls.Add(labelName);
+            Controls.Add(comboBoxApartmentId);
+            Controls.Add(labelApartmentId);
+            Name = "FormPreSalesService";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Допродажная услуга";
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCost).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelApartmentId;
+        private ComboBox comboBoxApartmentId;
+        private Label labelName;
+        private TextBox textBoxName;
+        private Label labelCost;
+        private NumericUpDown numericUpDownCost;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormPreSalesService.cs

@@ -0,0 +1,42 @@
+using RealEstateTransactions.Entities;
+using RealEstateTransactions.Repositories;
+
+namespace RealEstateTransactions.Forms
+{
+    public partial class FormPreSalesService : Form
+    {
+        private readonly IPreSalesServicesRepository _repository;
+
+        public FormPreSalesService(IPreSalesServicesRepository repository, IApartmentRepository apartmentRepository)
+        {
+            InitializeComponent();
+            _repository = repository ?? throw new ArgumentNullException(nameof(repository));
+
+            comboBoxApartmentId.DataSource = apartmentRepository.ReadApartments();
+            comboBoxApartmentId.DisplayMember = "Id";
+            comboBoxApartmentId.ValueMember = "Id";
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (comboBoxApartmentId.SelectedItem == null || string.IsNullOrWhiteSpace(textBoxName.Text))
+                {
+                    throw new Exception("Имеются незаполненные поля");
+                }
+
+                _repository.CreatePreSalesService(PreSalesServices.CreatePreSalesServices(0, (int)comboBoxApartmentId.SelectedValue!,
+                    textBoxName.Text, (float)numericUpDownCost.Value));
+
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при сохранении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e) => Close();
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormPreSalesService.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

RealEstateTransactions/RealEstateTransactions/Forms/FormPreSalesServices.Designer.cs

@@ -0,0 +1,114 @@
+namespace RealEstateTransactions.Forms
+{
+    partial class FormPreSalesServices
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            panelTools = new Panel();
+            buttonDelete = new Button();
+            buttonAdd = new Button();
+            dataGridView = new DataGridView();
+            panelTools.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // panelTools
+            // 
+            panelTools.Controls.Add(buttonDelete);
+            panelTools.Controls.Add(buttonAdd);
+            panelTools.Dock = DockStyle.Right;
+            panelTools.Location = new Point(851, 0);
+            panelTools.Name = "panelTools";
+            panelTools.Size = new Size(131, 553);
+            panelTools.TabIndex = 1;
+            // 
+            // buttonDelete
+            // 
+            buttonDelete.BackgroundImage = Properties.Resources.Delete;
+            buttonDelete.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonDelete.Location = new Point(28, 307);
+            buttonDelete.Name = "buttonDelete";
+            buttonDelete.Size = new Size(80, 80);
+            buttonDelete.TabIndex = 1;
+            buttonDelete.UseVisualStyleBackColor = true;
+            buttonDelete.Click += ButtonDelete_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.BackgroundImage = Properties.Resources.Add;
+            buttonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonAdd.Location = new Point(28, 139);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(80, 80);
+            buttonAdd.TabIndex = 0;
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.AllowUserToResizeColumns = false;
+            dataGridView.AllowUserToResizeRows = false;
+            dataGridView.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Fill;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(851, 553);
+            dataGridView.TabIndex = 2;
+            dataGridView.TabStop = false;
+            // 
+            // FormPreSalesServices
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(982, 553);
+            Controls.Add(dataGridView);
+            Controls.Add(panelTools);
+            Name = "FormPreSalesServices";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Допродажные услуги";
+            Load += FormPreSalesServices_Load;
+            panelTools.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panelTools;
+        private Button buttonDelete;
+        private Button buttonAdd;
+        private DataGridView dataGridView;
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormPreSalesServices.cs

@@ -0,0 +1,78 @@
+using RealEstateTransactions.Repositories;
+using Unity;
+
+namespace RealEstateTransactions.Forms
+{
+    public partial class FormPreSalesServices : Form
+    {
+        private readonly IUnityContainer _container;
+
+        private readonly IPreSalesServicesRepository _repository;
+
+        public FormPreSalesServices(IUnityContainer container, IPreSalesServicesRepository repository)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentNullException(nameof(container));
+            _repository = repository ?? throw new ArgumentNullException(nameof(repository));
+        }
+
+        private void FormPreSalesServices_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка загрузки", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormPreSalesService>().ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при добавлении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonDelete_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFormSelectedRow(out var findId)) return;
+
+            if (MessageBox.Show("Удалить запись?", "Удаление", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
+                != DialogResult.Yes) return;
+
+            try
+            {
+                _repository.DeletePreSalesService(findId);
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridView.DataSource = _repository.ReadPreSalesServices();
+
+        private bool TryGetIdentifierFormSelectedRow(out int id)
+        {
+            id = 0;
+
+            if (dataGridView.SelectedRows.Count < 1)
+            {
+                MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return false;
+            }
+
+            id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+            return true;
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormPreSalesServices.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

RealEstateTransactions/RealEstateTransactions/Forms/FormService.Designer.cs

@@ -0,0 +1,133 @@
+namespace RealEstateTransactions.Forms
+{
+    partial class FormService
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            labelName = new Label();
+            labelPrice = new Label();
+            textBoxName = new TextBox();
+            numericUpDownPrice = new NumericUpDown();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownPrice).BeginInit();
+            SuspendLayout();
+            // 
+            // labelName
+            // 
+            labelName.AutoSize = true;
+            labelName.Font = new Font("Segoe UI", 14F);
+            labelName.Location = new Point(12, 9);
+            labelName.Name = "labelName";
+            labelName.Size = new Size(198, 32);
+            labelName.TabIndex = 0;
+            labelName.Text = "Название услуги";
+            // 
+            // labelPrice
+            // 
+            labelPrice.AutoSize = true;
+            labelPrice.Font = new Font("Segoe UI", 14F);
+            labelPrice.Location = new Point(12, 80);
+            labelPrice.Name = "labelPrice";
+            labelPrice.Size = new Size(209, 32);
+            labelPrice.TabIndex = 1;
+            labelPrice.Text = "Стоимость услуги";
+            // 
+            // textBoxName
+            // 
+            textBoxName.BorderStyle = BorderStyle.FixedSingle;
+            textBoxName.Font = new Font("Segoe UI", 14F);
+            textBoxName.Location = new Point(232, 7);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(186, 39);
+            textBoxName.TabIndex = 0;
+            textBoxName.TextAlign = HorizontalAlignment.Center;
+            // 
+            // numericUpDownPrice
+            // 
+            numericUpDownPrice.BorderStyle = BorderStyle.FixedSingle;
+            numericUpDownPrice.DecimalPlaces = 2;
+            numericUpDownPrice.Font = new Font("Segoe UI", 14F);
+            numericUpDownPrice.Location = new Point(232, 73);
+            numericUpDownPrice.Maximum = new decimal(new int[] { 1000000, 0, 0, 0 });
+            numericUpDownPrice.Name = "numericUpDownPrice";
+            numericUpDownPrice.Size = new Size(186, 39);
+            numericUpDownPrice.TabIndex = 1;
+            numericUpDownPrice.TextAlign = HorizontalAlignment.Center;
+            numericUpDownPrice.ThousandsSeparator = true;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Font = new Font("Segoe UI", 14F);
+            buttonSave.Location = new Point(32, 137);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(148, 49);
+            buttonSave.TabIndex = 2;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Font = new Font("Segoe UI", 14F);
+            buttonCancel.Location = new Point(232, 137);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(148, 49);
+            buttonCancel.TabIndex = 3;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // FormService
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(429, 194);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(numericUpDownPrice);
+            Controls.Add(textBoxName);
+            Controls.Add(labelPrice);
+            Controls.Add(labelName);
+            Name = "FormService";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Услуга";
+            ((System.ComponentModel.ISupportInitialize)numericUpDownPrice).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelName;
+        private Label labelPrice;
+        private TextBox textBoxName;
+        private NumericUpDown numericUpDownPrice;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormService.cs

@@ -0,0 +1,73 @@
+using RealEstateTransactions.Entities;
+using RealEstateTransactions.Repositories;
+
+namespace RealEstateTransactions.Forms
+{
+    public partial class FormService : Form
+    {
+        private readonly IServicesRepository _repository;
+
+        private int? _serviceId;
+
+        public int Id
+        {
+            set
+            {
+                try
+                {
+                    var service = _repository.ReadService(value);
+
+                    if (service == null) throw new InvalidDataException(nameof(service));
+
+                    textBoxName.Text = service.Name;
+                    numericUpDownPrice.Value = (decimal)service.Price;
+
+                    _serviceId = value;
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка при получении данных",
+                        MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    return;
+                }
+            }
+        }
+
+        public FormService(IServicesRepository repository)
+        {
+            InitializeComponent();
+            _repository = repository ?? throw new ArgumentNullException(nameof(repository));
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (string.IsNullOrWhiteSpace(textBoxName.Text))
+                {
+                    throw new Exception("Имеются незаполненные поля");
+                }
+
+                if (_serviceId.HasValue)
+                {
+                    _repository.UpdateService(CreateService(_serviceId.Value));
+                }
+                else
+                {
+                    _repository.CreateService(CreateService(0));
+                }
+
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при сохранении",
+                    MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e) => Close();
+
+        private Services CreateService(int id) => Services.CreateService(id, textBoxName.Text, (float)numericUpDownPrice.Value);
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormService.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

RealEstateTransactions/RealEstateTransactions/Forms/FormServices.Designer.cs

@@ -0,0 +1,128 @@
+namespace RealEstateTransactions.Entities
+{
+    partial class FormServices
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            panelTools = new Panel();
+            buttonDelete = new Button();
+            buttonUpdate = new Button();
+            buttonAdd = new Button();
+            dataGridView = new DataGridView();
+            panelTools.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // panelTools
+            // 
+            panelTools.Controls.Add(buttonDelete);
+            panelTools.Controls.Add(buttonUpdate);
+            panelTools.Controls.Add(buttonAdd);
+            panelTools.Dock = DockStyle.Right;
+            panelTools.Location = new Point(851, 0);
+            panelTools.Name = "panelTools";
+            panelTools.Size = new Size(131, 553);
+            panelTools.TabIndex = 1;
+            // 
+            // buttonDelete
+            // 
+            buttonDelete.BackgroundImage = Properties.Resources.Delete;
+            buttonDelete.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonDelete.Location = new Point(28, 333);
+            buttonDelete.Name = "buttonDelete";
+            buttonDelete.Size = new Size(80, 80);
+            buttonDelete.TabIndex = 2;
+            buttonDelete.UseVisualStyleBackColor = true;
+            buttonDelete.Click += ButtonDelete_Click;
+            // 
+            // buttonUpdate
+            // 
+            buttonUpdate.BackgroundImage = Properties.Resources.Update;
+            buttonUpdate.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonUpdate.Location = new Point(28, 204);
+            buttonUpdate.Name = "buttonUpdate";
+            buttonUpdate.Size = new Size(80, 80);
+            buttonUpdate.TabIndex = 1;
+            buttonUpdate.UseVisualStyleBackColor = true;
+            buttonUpdate.Click += ButtonUpdate_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.BackgroundImage = Properties.Resources.Add;
+            buttonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonAdd.Location = new Point(28, 73);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(80, 80);
+            buttonAdd.TabIndex = 0;
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToAddRows = false;
+            dataGridView.AllowUserToDeleteRows = false;
+            dataGridView.AllowUserToResizeColumns = false;
+            dataGridView.AllowUserToResizeRows = false;
+            dataGridView.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Dock = DockStyle.Fill;
+            dataGridView.Location = new Point(0, 0);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.ReadOnly = true;
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.RowHeadersWidth = 51;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(851, 553);
+            dataGridView.TabIndex = 2;
+            dataGridView.TabStop = false;
+            // 
+            // FormServices
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(982, 553);
+            Controls.Add(dataGridView);
+            Controls.Add(panelTools);
+            Name = "FormServices";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Услуги";
+            Load += FormServices_Load;
+            panelTools.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panelTools;
+        private Button buttonDelete;
+        private Button buttonUpdate;
+        private Button buttonAdd;
+        private DataGridView dataGridView;
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormServices.cs

@@ -0,0 +1,96 @@
+using RealEstateTransactions.Forms;
+using RealEstateTransactions.Repositories;
+using Unity;
+
+namespace RealEstateTransactions.Entities
+{
+    public partial class FormServices : Form
+    {
+        private readonly IUnityContainer _container;
+
+        private readonly IServicesRepository _repository;
+
+        public FormServices(IUnityContainer container, IServicesRepository repository)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentNullException(nameof(container));
+            _repository = repository ?? throw new ArgumentNullException(nameof(_repository));
+        }
+
+        private void FormServices_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка загрузки", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormService>().ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при добавлении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonUpdate_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFormSelectedRow(out var findId)) return;
+
+            try
+            {
+                var form = _container.Resolve<FormService>();
+                form.Id = findId;
+                form.ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при изменении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonDelete_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFormSelectedRow(out var findId)) return;
+
+            if (MessageBox.Show("Удалить запись?", "Удаление", MessageBoxButtons.YesNo, MessageBoxIcon.Question)
+                != DialogResult.Yes) return;
+
+            try
+            {
+                _repository.DeleteService(findId);
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridView.DataSource = _repository.ReadServices();
+
+        private bool TryGetIdentifierFormSelectedRow(out int id)
+        {
+            id = 0;
+
+            if (dataGridView.SelectedRows.Count < 1)
+            {
+                MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return false;
+            }
+
+            id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+            return true;
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Forms/FormServices.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!--
+    Microsoft ResX Schema
+
+    Version 2.0
+
+    The primary goals of this format is to allow a simple XML format
+    that is mostly human readable. The generation and parsing of the
+    various data types are done through the TypeConverter classes
+    associated with the data types.
+
+    Example:
+
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+
+    There are any number of "resheader" rows that contain simple
+    name/value pairs.
+
+    Each data row contains a name, and value. The row also contains a
+    type or mimetype. Type corresponds to a .NET class that support
+    text/value conversion through the TypeConverter architecture.
+    Classes that don't support this are serialized and stored with the
+    mimetype set.
+
+    The mimetype is used for serialized objects, and tells the
+    ResXResourceReader how to depersist the object. This is currently not
+    extensible. For a given mimetype the value must be set accordingly:
+
+    Note - application/x-microsoft.net.object.binary.base64 is the format
+    that the ResXResourceWriter will generate, however the reader can
+    read any of the formats listed below.
+
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

RealEstateTransactions/RealEstateTransactions/Program.cs

@@ -1,3 +1,7 @@
+using RealEstateTransactions.Repositories;
+using RealEstateTransactions.Repositories.Implementations;
+using Unity;
+
 namespace RealEstateTransactions
 {
     internal static class Program
@@ -11,7 +15,21 @@ namespace RealEstateTransactions
             // To customize application configuration such as set high DPI settings or default font,
             // see https://aka.ms/applicationconfiguration.
             ApplicationConfiguration.Initialize();
-            Application.Run(new Form1());
+            Application.Run(CreateContainer().Resolve<FormGeneral>());
+        }
+
+        private static IUnityContainer CreateContainer()
+        {
+            var container = new UnityContainer();
+
+            container.RegisterType<IApartmentRepository, ApartmentRepository>();
+            container.RegisterType<IBuyerRepository, BuyerRepository>();
+            container.RegisterType<IDealRepository, DealRepository>();
+            container.RegisterType<IPreSalesServicesRepository, PreSalesServicesRepository>();
+            container.RegisterType<IServicesDealRepository, ServicesDealRepository>();
+            container.RegisterType<IServicesRepository, ServicesRepository>();
+
+            return container;
         }
     }
 }

RealEstateTransactions/RealEstateTransactions/Properties/Resources.Designer.cs

@@ -0,0 +1,113 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     Этот код создан программой.
+//     Исполняемая версия:4.0.30319.42000
+//
+//     Изменения в этом файле могут привести к неправильной работе и будут потеряны в случае
+//     повторной генерации кода.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace RealEstateTransactions.Properties {
+    using System;
+    
+    
+    /// <summary>
+    ///   Класс ресурса со строгой типизацией для поиска локализованных строк и т.д.
+    /// </summary>
+    // Этот класс создан автоматически классом StronglyTypedResourceBuilder
+    // с помощью такого средства, как ResGen или Visual Studio.
+    // Чтобы добавить или удалить член, измените файл .ResX и снова запустите ResGen
+    // с параметром /str или перестройте свой проект VS.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "17.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources {
+        
+        private static global::System.Resources.ResourceManager resourceMan;
+        
+        private static global::System.Globalization.CultureInfo resourceCulture;
+        
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources() {
+        }
+        
+        /// <summary>
+        ///   Возвращает кэшированный экземпляр ResourceManager, использованный этим классом.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("RealEstateTransactions.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+        
+        /// <summary>
+        ///   Перезаписывает свойство CurrentUICulture текущего потока для всех
+        ///   обращений к ресурсу с помощью этого класса ресурса со строгой типизацией.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture {
+            get {
+                return resourceCulture;
+            }
+            set {
+                resourceCulture = value;
+            }
+        }
+        
+        /// <summary>
+        ///   Поиск локализованного ресурса типа System.Drawing.Bitmap.
+        /// </summary>
+        internal static System.Drawing.Bitmap Add {
+            get {
+                object obj = ResourceManager.GetObject("Add", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        /// <summary>
+        ///   Поиск локализованного ресурса типа System.Drawing.Bitmap.
+        /// </summary>
+        internal static System.Drawing.Bitmap Delete {
+            get {
+                object obj = ResourceManager.GetObject("Delete", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        /// <summary>
+        ///   Поиск локализованного ресурса типа System.Drawing.Bitmap.
+        /// </summary>
+        internal static System.Drawing.Bitmap ERka {
+            get {
+                object obj = ResourceManager.GetObject("ERka", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        /// <summary>
+        ///   Поиск локализованного ресурса типа System.Drawing.Bitmap.
+        /// </summary>
+        internal static System.Drawing.Bitmap Update {
+            get {
+                object obj = ResourceManager.GetObject("Update", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        /// <summary>
+        ///   Поиск локализованного ресурса типа System.Drawing.Bitmap.
+        /// </summary>
+        internal static System.Drawing.Bitmap фон {
+            get {
+                object obj = ResourceManager.GetObject("фон", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Properties/Resources.resx

@@ -0,0 +1,136 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <assembly alias="System.Windows.Forms" name="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
+  <data name="фон" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\фон.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+  <data name="Add" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\Add.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+  <data name="Delete" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\Delete.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+  <data name="ERka" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\ERka.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+  <data name="Update" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\Update.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+</root>

RealEstateTransactions/RealEstateTransactions/RealEstateTransactions.csproj

@@ -8,4 +8,23 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Unity" Version="5.11.10" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Compile Update="Properties\Resources.Designer.cs">
+      <DesignTime>True</DesignTime>
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <EmbeddedResource Update="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+    </EmbeddedResource>
+  </ItemGroup>
+
 </Project>

RealEstateTransactions/RealEstateTransactions/Repositories/IApartmentRepository.cs

@@ -0,0 +1,17 @@
+using RealEstateTransactions.Entities;
+
+namespace RealEstateTransactions.Repositories
+{
+    public interface IApartmentRepository
+    {
+        IEnumerable<Apartment> ReadApartments();
+
+        Apartment ReadApartment(int id);
+
+        void CreateApartment(Apartment apartment);
+
+        void UpdateApartment(Apartment apartment);
+
+        void DeleteApartment(int id);
+    }
+}

RealEstateTransactions/RealEstateTransactions/Repositories/IBuyerRepository.cs

@@ -0,0 +1,17 @@
+using RealEstateTransactions.Entities;
+
+namespace RealEstateTransactions.Repositories
+{
+    public interface IBuyerRepository
+    {
+        IEnumerable<Buyer> ReadBuyers();
+
+        Buyer ReadBuyer(int id);
+
+        void CreateBuyer(Buyer buyer);
+
+        void UpdateBuyer(Buyer buyer);
+
+        void DeleteBuyer(int id);
+    }
+}

RealEstateTransactions/RealEstateTransactions/Repositories/IDealRepository.cs

@@ -0,0 +1,17 @@
+using RealEstateTransactions.Entities;
+
+namespace RealEstateTransactions.Repositories
+{
+    public interface IDealRepository
+    {
+        IEnumerable<Deal> ReadDeals();
+
+        Deal ReadDeal(int id);
+
+        void CreateDeal(Deal deal);
+
+        void UpdateDeal(Deal deal);
+
+        void DeleteDeal(int id);
+    }
+}

RealEstateTransactions/RealEstateTransactions/Repositories/IPreSalesServicesRepository.cs

@@ -0,0 +1,13 @@
+using RealEstateTransactions.Entities;
+
+namespace RealEstateTransactions.Repositories
+{
+    public interface IPreSalesServicesRepository
+    {
+        IEnumerable<PreSalesServices> ReadPreSalesServices();
+
+        void CreatePreSalesService(PreSalesServices preSalesServices);
+
+        void DeletePreSalesService(int id);
+    }
+}

RealEstateTransactions/RealEstateTransactions/Repositories/IServicesDealRepository.cs

@@ -0,0 +1,11 @@
+using RealEstateTransactions.Entities;
+
+namespace RealEstateTransactions.Repositories
+{
+    public interface IServicesDealRepository
+    {
+        IEnumerable<ServicesDeal> ReadServicesDeal();
+
+        void CreateServicesDeal(ServicesDeal servicesDeal);
+    }
+}

RealEstateTransactions/RealEstateTransactions/Repositories/IServicesRepository.cs

@@ -0,0 +1,17 @@
+using RealEstateTransactions.Entities;
+
+namespace RealEstateTransactions.Repositories
+{
+    public interface IServicesRepository
+    {
+        IEnumerable<Services> ReadServices();
+
+        Services ReadService(int id);
+
+        void CreateService(Services service);
+
+        void UpdateService(Services service);
+
+        void DeleteService(int id);
+    }
+}

RealEstateTransactions/RealEstateTransactions/Repositories/Implementations/ApartmentRepository.cs

@@ -0,0 +1,38 @@
+using RealEstateTransactions.Entities;
+using RealEstateTransactions.Entities.Enums;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RealEstateTransactions.Repositories.Implementations
+{
+    public class ApartmentRepository : IApartmentRepository
+    {
+        public Apartment ReadApartment(int id)
+        {
+            return Apartment.CreateApartment(0, AgencyType.None, FormFactorType.None, 0, 0, 0, 0);
+        }
+
+        public IEnumerable<Apartment> ReadApartments()
+        {
+            return [];
+        }
+
+        public void CreateApartment(Apartment apartment)
+        {
+            
+        }
+
+        public void DeleteApartment(int id)
+        {
+            
+        }
+
+        public void UpdateApartment(Apartment apartment)
+        {
+            
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Repositories/Implementations/BuyerRepository.cs

@@ -0,0 +1,38 @@
+using RealEstateTransactions.Entities;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection.Metadata.Ecma335;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RealEstateTransactions.Repositories.Implementations
+{
+    public class BuyerRepository : IBuyerRepository
+    {
+        public void CreateBuyer(Buyer buyer)
+        {
+            
+        }
+
+        public void DeleteBuyer(int id)
+        {
+            
+        }
+
+        public Buyer ReadBuyer(int id)
+        {
+            return Buyer.CreateBuyer(0, "", 0, 0);
+        }
+
+        public IEnumerable<Buyer> ReadBuyers()
+        {
+            return [];
+        }
+
+        public void UpdateBuyer(Buyer buyer)
+        {
+            
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Repositories/Implementations/DealRepository.cs

@@ -0,0 +1,32 @@
+using RealEstateTransactions.Entities;
+
+namespace RealEstateTransactions.Repositories.Implementations
+{
+    public class DealRepository : IDealRepository
+    {
+        public void CreateDeal(Deal deal)
+        {
+            
+        }
+
+        public void DeleteDeal(int id)
+        {
+            
+        }
+
+        public Deal ReadDeal(int id)
+        {
+            return Deal.CreateDeal(0, 0, 0, 0, DateTime.Now, []);
+        }
+
+        public IEnumerable<Deal> ReadDeals()
+        {
+            return [];
+        }
+
+        public void UpdateDeal(Deal deal)
+        {
+            
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Repositories/Implementations/PreSalesServicesRepository.cs

@@ -0,0 +1,28 @@
+using RealEstateTransactions.Entities;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RealEstateTransactions.Repositories.Implementations
+{
+    public class PreSalesServicesRepository : IPreSalesServicesRepository
+    {
+        public void CreatePreSalesService(PreSalesServices preSalesServices)
+        {
+            
+
+        }
+
+        public void DeletePreSalesService(int id)
+        {
+            
+        }
+
+        public IEnumerable<PreSalesServices> ReadPreSalesServices()
+        {
+            return [];
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Repositories/Implementations/ServicesDealRepository.cs

@@ -0,0 +1,27 @@
+using RealEstateTransactions.Entities;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RealEstateTransactions.Repositories.Implementations
+{
+    public class ServicesDealRepository : IServicesDealRepository
+    {
+        public void CreateServicesDeal(ServicesDeal servicesDeal)
+        {
+            
+        }
+
+        public void DeleteServicesDeal(int id)
+        {
+            
+        }
+
+        public IEnumerable<ServicesDeal> ReadServicesDeal()
+        {
+            return [];
+        }
+    }
+}

RealEstateTransactions/RealEstateTransactions/Repositories/Implementations/ServicesRepository.cs

@@ -0,0 +1,37 @@
+using RealEstateTransactions.Entities;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace RealEstateTransactions.Repositories.Implementations
+{
+    public class ServicesRepository : IServicesRepository
+    {
+        public void CreateService(Services service)
+        {
+            
+        }
+
+        public void DeleteService(int id)
+        {
+            
+        }
+
+        public Services ReadService(int id)
+        {
+            return Services.CreateService(0, "", 0);
+        }
+
+        public IEnumerable<Services> ReadServices()
+        {
+            return [];
+        }
+
+        public void UpdateService(Services service)
+        {
+            
+        }
+    }
+}

RealEstateTransactions/Temp.txt

@@ -0,0 +1 @@
+