PIbd-23_Gutorov_I.A._IT-Company/Entities/Contract.cs

@@ -0,0 +1,39 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities.Enums;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+public class Contract
+{
+    public int Id { get; private set; }
+
+    public int CustomerID { get; private set; }
+
+    public int ExecutorID { get; private set; }
+
+    public ContractCategory Category { get; private set; }
+
+    public DateTime ConclusionDate { get; private set; }
+
+    public DateTime Deadline { get; private set; }
+
+    public int PaymentAmount { get; private set; }
+
+    public IEnumerable<Service> Services { get; private set; } = [];
+
+    public static Contract CreateEntity(int id, int customerID, int executorID,
+        ContractCategory category, DateTime deadline,
+        int paymentAmount, IEnumerable<Service> services)
+    {
+        return new Contract
+        {
+            Id = id,
+            CustomerID = customerID,
+            ExecutorID = executorID,
+            Category = category,
+            ConclusionDate = DateTime.Now,
+            Deadline = deadline,
+            PaymentAmount = paymentAmount,
+            Services = services
+        };
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Entities/Customer.cs

@@ -0,0 +1,23 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+public class Customer
+{
+    public int Id { get; private set; }
+
+    public string Name { get; private set; } = string.Empty;
+
+    public string Contact { get; private set; } = string.Empty;
+
+    public string Address { get; private set; } = string.Empty;
+
+    public static Customer CreateEntity(int id, string name, string contact, string address)
+    {
+        return new Customer
+        {
+            Id = id,
+            Name = name ?? String.Empty,
+            Contact = contact ?? String.Empty,
+            Address = address ?? String.Empty
+        };
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Entities/CustomerExecutorReview.cs

@@ -0,0 +1,26 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+public class CustomerExecutorReview
+{
+    public int Id { get; private set; }
+
+    public int CustomerId { get; private set; }
+
+    public int ExecutorId { get; private set; }
+
+    public string Review { get; private set; } = string.Empty;
+
+    public int Grade { get; private set; }
+
+    public static CustomerExecutorReview CreateElement(int id, int customerId, int executorId, string review, int grade)
+    {
+        return new CustomerExecutorReview
+        {
+            Id = id,
+            CustomerId = customerId,
+            ExecutorId = executorId,
+            Review = review ?? String.Empty,
+            Grade = grade
+        };
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Entities/Enums/ContractCategory.cs

@@ -0,0 +1,11 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Entities.Enums;
+
+[Flags]
+public enum ContractCategory
+{
+    None = 0,
+
+    Support = 1,
+
+    Development = 2
+}

PIbd-23_Gutorov_I.A._IT-Company/Entities/Enums/ExecutorPost.cs

@@ -0,0 +1,14 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Entities.Enums;
+
+public enum ExecutorPost
+{
+    None = 0,
+
+    Junior = 1,
+
+    Middle = 2,
+
+    Senior = 3,
+
+    TeamLead = 4
+}

PIbd-23_Gutorov_I.A._IT-Company/Entities/Executor.cs

@@ -0,0 +1,22 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities.Enums;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+public class Executor
+{
+    public int Id { get; private set; }
+
+    public string Name { get; private set; } = string.Empty;
+
+    public ExecutorPost Post { get; private set; }
+
+    public static Executor CreateEntity(int id, string name, ExecutorPost post)
+    {
+        return new Executor
+        {
+            Id = id,
+            Name = name ?? String.Empty,
+            Post = post
+        };
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Entities/Service.cs

@@ -0,0 +1,17 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+public class Service
+{
+    public int Id { get; private set; }
+
+    public string Description { get; private set; } = string.Empty;
+
+    public static Service CreateEntity(int id, string description)
+    {
+        return new Service
+        {
+            Id = id,
+            Description = description
+        };
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Entities/ServiceContract.cs

@@ -0,0 +1,20 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+public class ServiceContract
+{
+    public int Id { get; private set; }
+
+    public int ServiceId { get; private set; }
+
+    public int ContractId { get; private set; }
+
+    public static ServiceContract CreateElement(int id, int serviceId, int contractId)
+    {
+        return new ServiceContract
+        {
+            Id = id,
+            ContractId = contractId,
+            ServiceId = serviceId
+        };
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Form1.Designer.cs

@@ -1,39 +0,0 @@
-namespace PIbd_23_Gutorov_I.A._IT_Company
-{
-    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
-    }
-}

PIbd-23_Gutorov_I.A._IT-Company/Form1.cs

@@ -1,10 +0,0 @@
-namespace PIbd_23_Gutorov_I.A._IT_Company
-{
-    public partial class Form1 : Form
-    {
-        public Form1()
-        {
-            InitializeComponent();
-        }
-    }
-}

PIbd-23_Gutorov_I.A._IT-Company/FormItCompany.Designer.cs

@@ -0,0 +1,137 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company
+{
+    partial class FormItCompany
+    {
+        /// <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()
+        {
+            menuStrip = new MenuStrip();
+            EntitiesToolStripMenuItem = new ToolStripMenuItem();
+            CustomersToolStripMenuItem = new ToolStripMenuItem();
+            ExecutorsToolStripMenuItem = new ToolStripMenuItem();
+            ServicesToolStripMenuItem = new ToolStripMenuItem();
+            OperationsToolStripMenuItem = new ToolStripMenuItem();
+            CustomerContractReviewsToolStripMenuItem = new ToolStripMenuItem();
+            ContractsToolStripMenuItem = new ToolStripMenuItem();
+            ReportsToolStripMenuItem = new ToolStripMenuItem();
+            menuStrip.SuspendLayout();
+            SuspendLayout();
+            // 
+            // menuStrip
+            // 
+            menuStrip.Items.AddRange(new ToolStripItem[] { EntitiesToolStripMenuItem, OperationsToolStripMenuItem, ReportsToolStripMenuItem });
+            menuStrip.Location = new Point(0, 0);
+            menuStrip.Name = "menuStrip";
+            menuStrip.Size = new Size(734, 24);
+            menuStrip.TabIndex = 0;
+            menuStrip.Text = "menuStrip1";
+            // 
+            // EntitiesToolStripMenuItem
+            // 
+            EntitiesToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { CustomersToolStripMenuItem, ExecutorsToolStripMenuItem, ServicesToolStripMenuItem });
+            EntitiesToolStripMenuItem.Name = "EntitiesToolStripMenuItem";
+            EntitiesToolStripMenuItem.Size = new Size(94, 20);
+            EntitiesToolStripMenuItem.Text = "Справочники";
+            // 
+            // CustomersToolStripMenuItem
+            // 
+            CustomersToolStripMenuItem.Name = "CustomersToolStripMenuItem";
+            CustomersToolStripMenuItem.Size = new Size(180, 22);
+            CustomersToolStripMenuItem.Text = "Заказчики";
+            CustomersToolStripMenuItem.Click += CustomersToolStripMenuItem_Click;
+            // 
+            // ExecutorsToolStripMenuItem
+            // 
+            ExecutorsToolStripMenuItem.Name = "ExecutorsToolStripMenuItem";
+            ExecutorsToolStripMenuItem.Size = new Size(180, 22);
+            ExecutorsToolStripMenuItem.Text = "Исполнители";
+            ExecutorsToolStripMenuItem.Click += ExecutorsToolStripMenuItem_Click;
+            // 
+            // ServicesToolStripMenuItem
+            // 
+            ServicesToolStripMenuItem.Name = "ServicesToolStripMenuItem";
+            ServicesToolStripMenuItem.Size = new Size(180, 22);
+            ServicesToolStripMenuItem.Text = "Услуги";
+            ServicesToolStripMenuItem.Click += ServicesToolStripMenuItem_Click;
+            // 
+            // OperationsToolStripMenuItem
+            // 
+            OperationsToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { CustomerContractReviewsToolStripMenuItem, ContractsToolStripMenuItem });
+            OperationsToolStripMenuItem.Name = "OperationsToolStripMenuItem";
+            OperationsToolStripMenuItem.Size = new Size(75, 20);
+            OperationsToolStripMenuItem.Text = "Операции";
+            // 
+            // CustomerContractReviewsToolStripMenuItem
+            // 
+            CustomerContractReviewsToolStripMenuItem.Name = "CustomerContractReviewsToolStripMenuItem";
+            CustomerContractReviewsToolStripMenuItem.Size = new Size(181, 22);
+            CustomerContractReviewsToolStripMenuItem.Text = "Отзывы заказчиков";
+            CustomerContractReviewsToolStripMenuItem.Click += CustomerContractReviewsToolStripMenuItem_Click;
+            // 
+            // ContractsToolStripMenuItem
+            // 
+            ContractsToolStripMenuItem.Name = "ContractsToolStripMenuItem";
+            ContractsToolStripMenuItem.Size = new Size(181, 22);
+            ContractsToolStripMenuItem.Text = "Контракты";
+            ContractsToolStripMenuItem.Click += ContractsToolStripMenuItem_Click;
+            // 
+            // ReportsToolStripMenuItem
+            // 
+            ReportsToolStripMenuItem.Name = "ReportsToolStripMenuItem";
+            ReportsToolStripMenuItem.Size = new Size(60, 20);
+            ReportsToolStripMenuItem.Text = "Отчеты";
+            // 
+            // FormItCompany
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            BackgroundImage = Properties.Resources.modern_equipped_computer_lab;
+            BackgroundImageLayout = ImageLayout.Stretch;
+            ClientSize = new Size(734, 461);
+            Controls.Add(menuStrip);
+            MainMenuStrip = menuStrip;
+            Name = "FormItCompany";
+            StartPosition = FormStartPosition.CenterScreen;
+            Text = "IT-компания";
+            menuStrip.ResumeLayout(false);
+            menuStrip.PerformLayout();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private MenuStrip menuStrip;
+        private ToolStripMenuItem EntitiesToolStripMenuItem;
+        private ToolStripMenuItem CustomersToolStripMenuItem;
+        private ToolStripMenuItem ExecutorsToolStripMenuItem;
+        private ToolStripMenuItem OperationsToolStripMenuItem;
+        private ToolStripMenuItem ReportsToolStripMenuItem;
+        private ToolStripMenuItem CustomerContractReviewsToolStripMenuItem;
+        private ToolStripMenuItem ContractsToolStripMenuItem;
+        private ToolStripMenuItem ServicesToolStripMenuItem;
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/FormItCompany.cs

@@ -0,0 +1,76 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Forms;
+using Unity;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company
+{
+    public partial class FormItCompany : Form
+    {
+        private readonly IUnityContainer _container;
+
+        public FormItCompany(IUnityContainer container)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentNullException(nameof(container));
+        }
+
+        private void CustomersToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormCustomers>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ExecutorsToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormExecutors>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ContractsToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormContracts>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void CustomerContractReviewsToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormCustomerExecutorReviews>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ServicesToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormServices>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/FormItCompany.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="menuStrip.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+</root>

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormContract.Designer.cs

@@ -0,0 +1,240 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    partial class FormContract
+    {
+        /// <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()
+        {
+            checkedListBoxContractCategory = new CheckedListBox();
+            dateTimePickerContractDeadline = new DateTimePicker();
+            numericUpDownContractPaymentAmount = new NumericUpDown();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            labelContractCustomerId = new Label();
+            labelContractExecutorId = new Label();
+            labelContractCategory = new Label();
+            comboBoxContractCustomerId = new ComboBox();
+            comboBoxContractExecutorId = new ComboBox();
+            labelContractDeadline = new Label();
+            labelContractPaymentAmount = new Label();
+            dataGridViewServices = new DataGridView();
+            ColumnServiceDescription = new DataGridViewComboBoxColumn();
+            groupBox = new GroupBox();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownContractPaymentAmount).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewServices).BeginInit();
+            groupBox.SuspendLayout();
+            SuspendLayout();
+            // 
+            // checkedListBoxContractCategory
+            // 
+            checkedListBoxContractCategory.FormattingEnabled = true;
+            checkedListBoxContractCategory.Location = new Point(169, 64);
+            checkedListBoxContractCategory.Name = "checkedListBoxContractCategory";
+            checkedListBoxContractCategory.Size = new Size(202, 40);
+            checkedListBoxContractCategory.TabIndex = 0;
+            // 
+            // dateTimePickerContractDeadline
+            // 
+            dateTimePickerContractDeadline.Location = new Point(169, 110);
+            dateTimePickerContractDeadline.Name = "dateTimePickerContractDeadline";
+            dateTimePickerContractDeadline.Size = new Size(202, 23);
+            dateTimePickerContractDeadline.TabIndex = 1;
+            // 
+            // numericUpDownContractPaymentAmount
+            // 
+            numericUpDownContractPaymentAmount.Increment = new decimal(new int[] { 100000, 0, 0, 0 });
+            numericUpDownContractPaymentAmount.Location = new Point(169, 139);
+            numericUpDownContractPaymentAmount.Maximum = new decimal(new int[] { 1000000000, 0, 0, 0 });
+            numericUpDownContractPaymentAmount.Name = "numericUpDownContractPaymentAmount";
+            numericUpDownContractPaymentAmount.Size = new Size(202, 23);
+            numericUpDownContractPaymentAmount.TabIndex = 2;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+            buttonCancel.Location = new Point(12, 469);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(358, 23);
+            buttonCancel.TabIndex = 9;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Anchor = AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+            buttonSave.Location = new Point(12, 440);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(358, 23);
+            buttonSave.TabIndex = 8;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // labelContractCustomerId
+            // 
+            labelContractCustomerId.AutoSize = true;
+            labelContractCustomerId.Location = new Point(12, 9);
+            labelContractCustomerId.Name = "labelContractCustomerId";
+            labelContractCustomerId.Size = new Size(60, 15);
+            labelContractCustomerId.TabIndex = 10;
+            labelContractCustomerId.Text = "Заказчик:";
+            // 
+            // labelContractExecutorId
+            // 
+            labelContractExecutorId.AutoSize = true;
+            labelContractExecutorId.Location = new Point(12, 38);
+            labelContractExecutorId.Name = "labelContractExecutorId";
+            labelContractExecutorId.Size = new Size(84, 15);
+            labelContractExecutorId.TabIndex = 11;
+            labelContractExecutorId.Text = "Исполнитель:";
+            // 
+            // labelContractCategory
+            // 
+            labelContractCategory.AutoSize = true;
+            labelContractCategory.Location = new Point(12, 64);
+            labelContractCategory.Name = "labelContractCategory";
+            labelContractCategory.Size = new Size(66, 15);
+            labelContractCategory.TabIndex = 12;
+            labelContractCategory.Text = "Категория:";
+            // 
+            // comboBoxContractCustomerId
+            // 
+            comboBoxContractCustomerId.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxContractCustomerId.FormattingEnabled = true;
+            comboBoxContractCustomerId.Location = new Point(169, 6);
+            comboBoxContractCustomerId.Name = "comboBoxContractCustomerId";
+            comboBoxContractCustomerId.Size = new Size(202, 23);
+            comboBoxContractCustomerId.TabIndex = 13;
+            // 
+            // comboBoxContractExecutorId
+            // 
+            comboBoxContractExecutorId.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxContractExecutorId.FormattingEnabled = true;
+            comboBoxContractExecutorId.Location = new Point(169, 35);
+            comboBoxContractExecutorId.Name = "comboBoxContractExecutorId";
+            comboBoxContractExecutorId.Size = new Size(202, 23);
+            comboBoxContractExecutorId.TabIndex = 14;
+            // 
+            // labelContractDeadline
+            // 
+            labelContractDeadline.AutoSize = true;
+            labelContractDeadline.Location = new Point(12, 116);
+            labelContractDeadline.Name = "labelContractDeadline";
+            labelContractDeadline.Size = new Size(110, 15);
+            labelContractDeadline.TabIndex = 15;
+            labelContractDeadline.Text = "Срок выполнения:";
+            // 
+            // labelContractPaymentAmount
+            // 
+            labelContractPaymentAmount.AutoSize = true;
+            labelContractPaymentAmount.Location = new Point(12, 141);
+            labelContractPaymentAmount.Name = "labelContractPaymentAmount";
+            labelContractPaymentAmount.Size = new Size(97, 15);
+            labelContractPaymentAmount.TabIndex = 16;
+            labelContractPaymentAmount.Text = "Сумма платежа:";
+            // 
+            // dataGridViewServices
+            // 
+            dataGridViewServices.AllowUserToResizeColumns = false;
+            dataGridViewServices.AllowUserToResizeRows = false;
+            dataGridViewServices.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewServices.Columns.AddRange(new DataGridViewColumn[] { ColumnServiceDescription });
+            dataGridViewServices.Dock = DockStyle.Fill;
+            dataGridViewServices.Location = new Point(3, 19);
+            dataGridViewServices.MultiSelect = false;
+            dataGridViewServices.Name = "dataGridViewServices";
+            dataGridViewServices.RowHeadersVisible = false;
+            dataGridViewServices.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewServices.Size = new Size(352, 244);
+            dataGridViewServices.TabIndex = 17;
+            // 
+            // ColumnServiceDescription
+            // 
+            ColumnServiceDescription.AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+            ColumnServiceDescription.HeaderText = "Услуга";
+            ColumnServiceDescription.Name = "ColumnServiceDescription";
+            ColumnServiceDescription.Resizable = DataGridViewTriState.True;
+            ColumnServiceDescription.SortMode = DataGridViewColumnSortMode.Automatic;
+            // 
+            // groupBox
+            // 
+            groupBox.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+            groupBox.Controls.Add(dataGridViewServices);
+            groupBox.Location = new Point(12, 168);
+            groupBox.Name = "groupBox";
+            groupBox.Size = new Size(358, 266);
+            groupBox.TabIndex = 18;
+            groupBox.TabStop = false;
+            groupBox.Text = "Услуги:";
+            // 
+            // FormContract
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(382, 502);
+            Controls.Add(groupBox);
+            Controls.Add(labelContractPaymentAmount);
+            Controls.Add(labelContractDeadline);
+            Controls.Add(comboBoxContractExecutorId);
+            Controls.Add(comboBoxContractCustomerId);
+            Controls.Add(labelContractCategory);
+            Controls.Add(labelContractExecutorId);
+            Controls.Add(labelContractCustomerId);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(numericUpDownContractPaymentAmount);
+            Controls.Add(dateTimePickerContractDeadline);
+            Controls.Add(checkedListBoxContractCategory);
+            Name = "FormContract";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Контракт";
+            ((System.ComponentModel.ISupportInitialize)numericUpDownContractPaymentAmount).EndInit();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewServices).EndInit();
+            groupBox.ResumeLayout(false);
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private CheckedListBox checkedListBoxContractCategory;
+        private DateTimePicker dateTimePickerContractDeadline;
+        private NumericUpDown numericUpDownContractPaymentAmount;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private Label labelContractCustomerId;
+        private Label labelContractExecutorId;
+        private Label labelContractCategory;
+        private ComboBox comboBoxContractCustomerId;
+        private ComboBox comboBoxContractExecutorId;
+        private Label labelContractDeadline;
+        private Label labelContractPaymentAmount;
+        private DataGridView dataGridViewServices;
+        private GroupBox groupBox;
+        private DataGridViewComboBoxColumn ColumnServiceDescription;
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormContract.cs

@@ -0,0 +1,83 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+using PIbd_23_Gutorov_I.A._IT_Company.Entities.Enums;
+using PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    public partial class FormContract : Form
+    {
+        private readonly IContractRepository _contractRepository;
+
+        public FormContract(IContractRepository contractRepository, ICustomerRepository customerRepository,
+            IExecutorRepository executorRepository, IServiceRepository serviceRepository)
+        {
+            InitializeComponent();
+            _contractRepository = contractRepository ?? throw new ArgumentNullException(nameof(contractRepository));
+
+            comboBoxContractCustomerId.DataSource = customerRepository.ReadCustomers();
+            comboBoxContractCustomerId.DisplayMember = "Name";
+            comboBoxContractCustomerId.ValueMember = "Id";
+
+            comboBoxContractExecutorId.DataSource = executorRepository.ReadExecutors();
+            comboBoxContractExecutorId.DisplayMember = "Name";
+            comboBoxContractExecutorId.ValueMember = "Id";
+
+            ColumnServiceDescription.DataSource = serviceRepository.ReadServices();
+            ColumnServiceDescription.DisplayMember = "Description";
+            ColumnServiceDescription.ValueMember = "Id";
+
+            foreach (var elem in Enum.GetValues(typeof(ContractCategory)))
+            {
+                checkedListBoxContractCategory.Items.Add(elem);
+            }
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (checkedListBoxContractCategory.CheckedItems.Count == 0 ||
+                    comboBoxContractCustomerId.SelectedIndex < 0 ||
+                    comboBoxContractExecutorId.SelectedIndex < 0)
+                {
+                    throw new Exception("Имеются незаполненные поля");
+                }
+
+                _contractRepository.CreateContract(CreateContract(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 Contract CreateContract(int id)
+        {
+            ContractCategory contractCategory = ContractCategory.None;
+            foreach (var elem in checkedListBoxContractCategory.CheckedItems)
+            {
+                contractCategory |= (ContractCategory)elem;
+            }
+
+            return Contract.CreateEntity(id, (int)comboBoxContractCustomerId.SelectedValue!,
+                (int)comboBoxContractExecutorId.SelectedValue!, contractCategory,
+                dateTimePickerContractDeadline.Value, Convert.ToInt32(numericUpDownContractPaymentAmount.Value),
+                CreateListServicesFromDataGrid());
+        }
+
+        private List<Service> CreateListServicesFromDataGrid()
+        {
+            var list = new List<Service>();
+
+            foreach (DataGridViewRow row in dataGridViewServices.Rows)
+                if (row.Cells["ColumnServiceDescription"].Value != null)
+                    list.Add(Service.CreateEntity(0, Convert.ToString(row.Cells["ColumnServiceDescription"].Value)!));
+
+            return list;
+        }
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormContract.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="ColumnServiceDescription.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+</root>

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormContracts.Designer.cs

@@ -0,0 +1,112 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    partial class FormContracts
+    {
+        /// <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()
+        {
+            dataGridViewData = new DataGridView();
+            panel = new Panel();
+            buttonDel = new Button();
+            buttonAdd = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).BeginInit();
+            panel.SuspendLayout();
+            SuspendLayout();
+            // 
+            // dataGridViewData
+            // 
+            dataGridViewData.AllowUserToAddRows = false;
+            dataGridViewData.AllowUserToDeleteRows = false;
+            dataGridViewData.AllowUserToResizeColumns = false;
+            dataGridViewData.AllowUserToResizeRows = false;
+            dataGridViewData.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewData.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewData.Dock = DockStyle.Fill;
+            dataGridViewData.Location = new Point(0, 0);
+            dataGridViewData.MultiSelect = false;
+            dataGridViewData.Name = "dataGridViewData";
+            dataGridViewData.ReadOnly = true;
+            dataGridViewData.RowHeadersVisible = false;
+            dataGridViewData.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewData.Size = new Size(677, 450);
+            dataGridViewData.TabIndex = 5;
+            // 
+            // panel
+            // 
+            panel.Controls.Add(buttonDel);
+            panel.Controls.Add(buttonAdd);
+            panel.Dock = DockStyle.Right;
+            panel.Location = new Point(677, 0);
+            panel.Name = "panel";
+            panel.Size = new Size(123, 450);
+            panel.TabIndex = 4;
+            // 
+            // buttonDel
+            // 
+            buttonDel.BackgroundImage = Properties.Resources.icon_remove_button;
+            buttonDel.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonDel.Location = new Point(16, 108);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(90, 90);
+            buttonDel.TabIndex = 2;
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += ButtonDel_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.BackgroundImage = Properties.Resources.icon_add_button;
+            buttonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonAdd.Location = new Point(16, 12);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(90, 90);
+            buttonAdd.TabIndex = 0;
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // FormContracts
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(dataGridViewData);
+            Controls.Add(panel);
+            Name = "FormContracts";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Контракты";
+            Load += FormContracts_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).EndInit();
+            panel.ResumeLayout(false);
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridViewData;
+        private Panel panel;
+        private Button buttonDel;
+        private Button buttonAdd;
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormContracts.cs

@@ -0,0 +1,78 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+using Unity;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    public partial class FormContracts : Form
+    {
+        private readonly IUnityContainer _container;
+
+        private readonly IContractRepository _contractRepository;
+
+        public FormContracts(IUnityContainer container, IContractRepository contractRepository)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentException(nameof(container));
+            _contractRepository = contractRepository ?? throw new ArgumentException(nameof(contractRepository));
+        }
+
+        private void FormContracts_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<FormContract>().ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при добавлении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonDel_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFromSelectedRow(out var findId))
+                return;
+
+            if (MessageBox.Show("Удалить запись?", "Удаление", MessageBoxButtons.YesNo) != DialogResult.Yes)
+                return;
+
+            try
+            {
+                _contractRepository.DeleteContract(findId);
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridViewData.DataSource = _contractRepository.ReadContracts();
+
+        private bool TryGetIdentifierFromSelectedRow(out int id)
+        {
+            id = 0;
+            if (dataGridViewData.SelectedRows.Count < 1)
+            {
+                MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return false;
+            }
+
+            id = Convert.ToInt32(dataGridViewData.SelectedRows[0].Cells["Id"].Value);
+            return true;
+        }
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormContracts.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>

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormCustomer.Designer.cs

@@ -0,0 +1,140 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    partial class FormCustomer
+    {
+        /// <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()
+        {
+            labelCustomerName = new Label();
+            labelCustomerContact = new Label();
+            labelCustomerAddress = new Label();
+            textBoxCustomerName = new TextBox();
+            textBoxCustomerContact = new TextBox();
+            textBoxCustomerAddress = new TextBox();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            SuspendLayout();
+            // 
+            // labelCustomerName
+            // 
+            labelCustomerName.AutoSize = true;
+            labelCustomerName.Location = new Point(12, 9);
+            labelCustomerName.Name = "labelCustomerName";
+            labelCustomerName.Size = new Size(34, 15);
+            labelCustomerName.TabIndex = 0;
+            labelCustomerName.Text = "Имя:";
+            // 
+            // labelCustomerContact
+            // 
+            labelCustomerContact.AutoSize = true;
+            labelCustomerContact.Location = new Point(12, 38);
+            labelCustomerContact.Name = "labelCustomerContact";
+            labelCustomerContact.Size = new Size(107, 15);
+            labelCustomerContact.TabIndex = 1;
+            labelCustomerContact.Text = "Контактная почта:";
+            // 
+            // labelCustomerAddress
+            // 
+            labelCustomerAddress.AutoSize = true;
+            labelCustomerAddress.Location = new Point(12, 67);
+            labelCustomerAddress.Name = "labelCustomerAddress";
+            labelCustomerAddress.Size = new Size(43, 15);
+            labelCustomerAddress.TabIndex = 2;
+            labelCustomerAddress.Text = "Адрес:";
+            // 
+            // textBoxCustomerName
+            // 
+            textBoxCustomerName.Location = new Point(125, 6);
+            textBoxCustomerName.Name = "textBoxCustomerName";
+            textBoxCustomerName.Size = new Size(168, 23);
+            textBoxCustomerName.TabIndex = 3;
+            // 
+            // textBoxCustomerContact
+            // 
+            textBoxCustomerContact.Location = new Point(125, 35);
+            textBoxCustomerContact.Name = "textBoxCustomerContact";
+            textBoxCustomerContact.Size = new Size(168, 23);
+            textBoxCustomerContact.TabIndex = 4;
+            // 
+            // textBoxCustomerAddress
+            // 
+            textBoxCustomerAddress.Location = new Point(125, 64);
+            textBoxCustomerAddress.Name = "textBoxCustomerAddress";
+            textBoxCustomerAddress.Size = new Size(168, 23);
+            textBoxCustomerAddress.TabIndex = 5;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(12, 93);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(281, 23);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(12, 122);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(281, 23);
+            buttonCancel.TabIndex = 7;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormCustomer
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(309, 159);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxCustomerAddress);
+            Controls.Add(textBoxCustomerContact);
+            Controls.Add(textBoxCustomerName);
+            Controls.Add(labelCustomerAddress);
+            Controls.Add(labelCustomerContact);
+            Controls.Add(labelCustomerName);
+            Name = "FormCustomer";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Заказчик";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label labelCustomerName;
+        private Label labelCustomerContact;
+        private Label labelCustomerAddress;
+        private TextBox textBoxCustomerName;
+        private TextBox textBoxCustomerContact;
+        private TextBox textBoxCustomerAddress;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormCustomer.cs

@@ -0,0 +1,68 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+using PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    public partial class FormCustomer : Form
+    {
+        private readonly ICustomerRepository _customerRepository;
+
+        private int? _customerId;
+
+        public int Id
+        {
+            set
+            {
+                try
+                {
+                    var customer = _customerRepository.ReadCustomerById(value);
+                    if (customer == null) throw new InvalidDataException(nameof(customer));
+
+                    textBoxCustomerName.Text = customer.Name;
+                    textBoxCustomerContact.Text = customer.Contact;
+                    textBoxCustomerAddress.Text = customer.Address;
+                    _customerId = value;
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка при получении данных", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    return;
+                }
+            }
+        }
+
+        public FormCustomer(ICustomerRepository customerRepository)
+        {
+            InitializeComponent();
+            _customerRepository = customerRepository ?? throw new ArgumentNullException(nameof(customerRepository));
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (string.IsNullOrEmpty(textBoxCustomerName.Text) ||
+                    string.IsNullOrEmpty(textBoxCustomerContact.Text) ||
+                    string.IsNullOrEmpty(textBoxCustomerAddress.Text))
+                {
+                    throw new Exception("Имеются незаполненные поля");
+                }
+
+                if (_customerId.HasValue) _customerRepository.UpdateCustomer(CreateCustomer(_customerId.Value));
+                else _customerRepository.CreateCustomer(CreateCustomer(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 Customer CreateCustomer(int id) => Customer.CreateEntity(
+            id, textBoxCustomerName.Text, textBoxCustomerContact.Text,
+            textBoxCustomerAddress.Text);
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormCustomer.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>

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormCustomerExecutorReview.Designer.cs

@@ -0,0 +1,172 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    partial class FormCustomerExecutorReview
+    {
+        /// <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()
+        {
+            labelCustomerExecutorReviewCustomerId = new Label();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            richTextBoxCustomerExecutorReviewReview = new RichTextBox();
+            labelCustomerExecutorReviewReview = new Label();
+            numericUpDownCustomerExecutorReviewGrade = new NumericUpDown();
+            comboBoxCustomerExecutorReviewCustomerId = new ComboBox();
+            comboBoxCustomerExecutorReviewExecutorId = new ComboBox();
+            labelCustomerExecutorReviewExecutorId = new Label();
+            labelCustomerExecutorReviewGrade = new Label();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCustomerExecutorReviewGrade).BeginInit();
+            SuspendLayout();
+            // 
+            // labelCustomerExecutorReviewCustomerId
+            // 
+            labelCustomerExecutorReviewCustomerId.AutoSize = true;
+            labelCustomerExecutorReviewCustomerId.Location = new Point(12, 9);
+            labelCustomerExecutorReviewCustomerId.Name = "labelCustomerExecutorReviewCustomerId";
+            labelCustomerExecutorReviewCustomerId.Size = new Size(60, 15);
+            labelCustomerExecutorReviewCustomerId.TabIndex = 22;
+            labelCustomerExecutorReviewCustomerId.Text = "Заказчик:";
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(12, 224);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(358, 23);
+            buttonCancel.TabIndex = 21;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(12, 195);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(358, 23);
+            buttonSave.TabIndex = 20;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // richTextBoxCustomerExecutorReviewReview
+            // 
+            richTextBoxCustomerExecutorReviewReview.Location = new Point(169, 64);
+            richTextBoxCustomerExecutorReviewReview.Name = "richTextBoxCustomerExecutorReviewReview";
+            richTextBoxCustomerExecutorReviewReview.Size = new Size(202, 96);
+            richTextBoxCustomerExecutorReviewReview.TabIndex = 27;
+            richTextBoxCustomerExecutorReviewReview.Text = "";
+            // 
+            // labelCustomerExecutorReviewReview
+            // 
+            labelCustomerExecutorReviewReview.AutoSize = true;
+            labelCustomerExecutorReviewReview.Location = new Point(12, 67);
+            labelCustomerExecutorReviewReview.Name = "labelCustomerExecutorReviewReview";
+            labelCustomerExecutorReviewReview.Size = new Size(44, 15);
+            labelCustomerExecutorReviewReview.TabIndex = 28;
+            labelCustomerExecutorReviewReview.Text = "Отзыв:";
+            // 
+            // numericUpDownCustomerExecutorReviewGrade
+            // 
+            numericUpDownCustomerExecutorReviewGrade.Location = new Point(169, 166);
+            numericUpDownCustomerExecutorReviewGrade.Maximum = new decimal(new int[] { 5, 0, 0, 0 });
+            numericUpDownCustomerExecutorReviewGrade.Minimum = new decimal(new int[] { 1, 0, 0, 0 });
+            numericUpDownCustomerExecutorReviewGrade.Name = "numericUpDownCustomerExecutorReviewGrade";
+            numericUpDownCustomerExecutorReviewGrade.Size = new Size(201, 23);
+            numericUpDownCustomerExecutorReviewGrade.TabIndex = 29;
+            numericUpDownCustomerExecutorReviewGrade.Value = new decimal(new int[] { 1, 0, 0, 0 });
+            // 
+            // comboBoxCustomerExecutorReviewCustomerId
+            // 
+            comboBoxCustomerExecutorReviewCustomerId.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxCustomerExecutorReviewCustomerId.FormattingEnabled = true;
+            comboBoxCustomerExecutorReviewCustomerId.Location = new Point(169, 6);
+            comboBoxCustomerExecutorReviewCustomerId.Name = "comboBoxCustomerExecutorReviewCustomerId";
+            comboBoxCustomerExecutorReviewCustomerId.Size = new Size(202, 23);
+            comboBoxCustomerExecutorReviewCustomerId.TabIndex = 30;
+            // 
+            // comboBoxCustomerExecutorReviewExecutorId
+            // 
+            comboBoxCustomerExecutorReviewExecutorId.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxCustomerExecutorReviewExecutorId.FormattingEnabled = true;
+            comboBoxCustomerExecutorReviewExecutorId.Location = new Point(169, 35);
+            comboBoxCustomerExecutorReviewExecutorId.Name = "comboBoxCustomerExecutorReviewExecutorId";
+            comboBoxCustomerExecutorReviewExecutorId.Size = new Size(202, 23);
+            comboBoxCustomerExecutorReviewExecutorId.TabIndex = 31;
+            // 
+            // labelCustomerExecutorReviewExecutorId
+            // 
+            labelCustomerExecutorReviewExecutorId.AutoSize = true;
+            labelCustomerExecutorReviewExecutorId.Location = new Point(12, 38);
+            labelCustomerExecutorReviewExecutorId.Name = "labelCustomerExecutorReviewExecutorId";
+            labelCustomerExecutorReviewExecutorId.Size = new Size(84, 15);
+            labelCustomerExecutorReviewExecutorId.TabIndex = 32;
+            labelCustomerExecutorReviewExecutorId.Text = "Исполнитель:";
+            // 
+            // labelCustomerExecutorReviewGrade
+            // 
+            labelCustomerExecutorReviewGrade.AutoSize = true;
+            labelCustomerExecutorReviewGrade.Location = new Point(12, 168);
+            labelCustomerExecutorReviewGrade.Name = "labelCustomerExecutorReviewGrade";
+            labelCustomerExecutorReviewGrade.Size = new Size(51, 15);
+            labelCustomerExecutorReviewGrade.TabIndex = 33;
+            labelCustomerExecutorReviewGrade.Text = "Оценка:";
+            // 
+            // FormCustomerExecutorReview
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(381, 260);
+            Controls.Add(labelCustomerExecutorReviewGrade);
+            Controls.Add(labelCustomerExecutorReviewExecutorId);
+            Controls.Add(comboBoxCustomerExecutorReviewExecutorId);
+            Controls.Add(comboBoxCustomerExecutorReviewCustomerId);
+            Controls.Add(numericUpDownCustomerExecutorReviewGrade);
+            Controls.Add(labelCustomerExecutorReviewReview);
+            Controls.Add(richTextBoxCustomerExecutorReviewReview);
+            Controls.Add(labelCustomerExecutorReviewCustomerId);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Name = "FormCustomerExecutorReview";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Отзыв заказчика";
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCustomerExecutorReviewGrade).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private ComboBox comboBoxCustomerExecutorReviewCustomerId;
+        private Label labelCustomerExecutorReviewCustomerId;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private RichTextBox richTextBoxCustomerExecutorReviewReview;
+        private Label labelCustomerExecutorReviewReview;
+        private NumericUpDown numericUpDownCustomerExecutorReviewGrade;
+        private ComboBox comboBoxCustomerExecutorReviewExecutorId;
+        private Label labelCustomerExecutorReviewExecutorId;
+        private Label labelCustomerExecutorReviewGrade;
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormCustomerExecutorReview.cs

@@ -0,0 +1,58 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+using PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    public partial class FormCustomerExecutorReview : Form
+    {
+        private readonly ICustomerExecutorReviewRepository _customerExecutorReviewRepository;
+
+        public FormCustomerExecutorReview(ICustomerExecutorReviewRepository customerExecutorReviewRepository,
+            ICustomerRepository customerRepository, IExecutorRepository executorRepository)
+        {
+            InitializeComponent();
+            _customerExecutorReviewRepository = customerExecutorReviewRepository ??
+                throw new ArgumentNullException(nameof(customerExecutorReviewRepository));
+
+            comboBoxCustomerExecutorReviewCustomerId.DataSource = customerRepository.ReadCustomers();
+            comboBoxCustomerExecutorReviewCustomerId.DisplayMember = "Name";
+            comboBoxCustomerExecutorReviewCustomerId.ValueMember = "Id";
+
+            comboBoxCustomerExecutorReviewExecutorId.DataSource = executorRepository.ReadExecutors();
+            comboBoxCustomerExecutorReviewExecutorId.DisplayMember = "Name";
+            comboBoxCustomerExecutorReviewExecutorId.ValueMember = "Id";
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (comboBoxCustomerExecutorReviewExecutorId.SelectedIndex < 0 ||
+                    comboBoxCustomerExecutorReviewCustomerId.SelectedIndex < 0 ||
+                    string.IsNullOrEmpty(richTextBoxCustomerExecutorReviewReview.Text))
+                {
+                    throw new Exception("Имеются незаполненные поля");
+                }
+
+                _customerExecutorReviewRepository.CreateCustomerExecutorReview(CreateCustomerExecutorReview(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 CustomerExecutorReview CreateCustomerExecutorReview(int id)
+        {
+            return CustomerExecutorReview.CreateElement(
+                    id, (int)comboBoxCustomerExecutorReviewCustomerId.SelectedValue!,
+                    (int)comboBoxCustomerExecutorReviewExecutorId.SelectedValue!,
+                    richTextBoxCustomerExecutorReviewReview.Text,
+                    Convert.ToInt32(numericUpDownCustomerExecutorReviewGrade.Value));
+        }
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormCustomerExecutorReview.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>

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormCustomerExecutorReviews.Designer.cs

@@ -0,0 +1,98 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    partial class FormCustomerExecutorReviews
+    {
+        /// <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()
+        {
+            dataGridViewData = new DataGridView();
+            panel = new Panel();
+            buttonAdd = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).BeginInit();
+            panel.SuspendLayout();
+            SuspendLayout();
+            // 
+            // dataGridViewData
+            // 
+            dataGridViewData.AllowUserToAddRows = false;
+            dataGridViewData.AllowUserToDeleteRows = false;
+            dataGridViewData.AllowUserToResizeColumns = false;
+            dataGridViewData.AllowUserToResizeRows = false;
+            dataGridViewData.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewData.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewData.Dock = DockStyle.Fill;
+            dataGridViewData.Location = new Point(0, 0);
+            dataGridViewData.MultiSelect = false;
+            dataGridViewData.Name = "dataGridViewData";
+            dataGridViewData.ReadOnly = true;
+            dataGridViewData.RowHeadersVisible = false;
+            dataGridViewData.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewData.Size = new Size(677, 450);
+            dataGridViewData.TabIndex = 5;
+            // 
+            // panel
+            // 
+            panel.Controls.Add(buttonAdd);
+            panel.Dock = DockStyle.Right;
+            panel.Location = new Point(677, 0);
+            panel.Name = "panel";
+            panel.Size = new Size(123, 450);
+            panel.TabIndex = 4;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.BackgroundImage = Properties.Resources.icon_add_button;
+            buttonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonAdd.Location = new Point(16, 12);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(90, 90);
+            buttonAdd.TabIndex = 0;
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // FormCustomerContractReviews
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(dataGridViewData);
+            Controls.Add(panel);
+            Name = "FormCustomerContractReviews";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Отзывы заказчиков";
+            Load += FormCustomerExecutorReviews_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).EndInit();
+            panel.ResumeLayout(false);
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridViewData;
+        private Panel panel;
+        private Button buttonAdd;
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormCustomerExecutorReviews.cs

@@ -0,0 +1,46 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+using Unity;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    public partial class FormCustomerExecutorReviews : Form
+    {
+        private readonly IUnityContainer _container;
+
+        private readonly ICustomerExecutorReviewRepository _customerExecutorReviewRepository;
+
+        public FormCustomerExecutorReviews(IUnityContainer container, ICustomerExecutorReviewRepository customerExecutorReviewRepository)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentException(nameof(container));
+            _customerExecutorReviewRepository = customerExecutorReviewRepository ?? throw new ArgumentException(nameof(customerExecutorReviewRepository));
+        }
+
+        private void FormCustomerExecutorReviews_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<FormCustomerExecutorReview>().ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при добавлении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridViewData.DataSource = _customerExecutorReviewRepository.ReadCustomerExecutorReviews();
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormCustomerExecutorReviews.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>

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormCustomers.Designer.cs

@@ -0,0 +1,126 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    partial class FormCustomers
+    {
+        /// <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()
+        {
+            panel = new Panel();
+            buttonDel = new Button();
+            buttonUpd = new Button();
+            buttonAdd = new Button();
+            dataGridViewData = new DataGridView();
+            panel.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).BeginInit();
+            SuspendLayout();
+            // 
+            // panel
+            // 
+            panel.Controls.Add(buttonDel);
+            panel.Controls.Add(buttonUpd);
+            panel.Controls.Add(buttonAdd);
+            panel.Dock = DockStyle.Right;
+            panel.Location = new Point(677, 0);
+            panel.Name = "panel";
+            panel.Size = new Size(123, 450);
+            panel.TabIndex = 0;
+            // 
+            // buttonDel
+            // 
+            buttonDel.BackgroundImage = Properties.Resources.icon_remove_button;
+            buttonDel.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonDel.Location = new Point(16, 204);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(90, 90);
+            buttonDel.TabIndex = 2;
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += ButtonDel_Click;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.BackgroundImage = Properties.Resources.icon_edit_button;
+            buttonUpd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonUpd.Location = new Point(16, 108);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(90, 90);
+            buttonUpd.TabIndex = 1;
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += ButtonUpd_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.BackgroundImage = Properties.Resources.icon_add_button;
+            buttonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonAdd.Location = new Point(16, 12);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(90, 90);
+            buttonAdd.TabIndex = 0;
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridViewData
+            // 
+            dataGridViewData.AllowUserToAddRows = false;
+            dataGridViewData.AllowUserToDeleteRows = false;
+            dataGridViewData.AllowUserToResizeColumns = false;
+            dataGridViewData.AllowUserToResizeRows = false;
+            dataGridViewData.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewData.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewData.Dock = DockStyle.Fill;
+            dataGridViewData.Location = new Point(0, 0);
+            dataGridViewData.MultiSelect = false;
+            dataGridViewData.Name = "dataGridViewData";
+            dataGridViewData.ReadOnly = true;
+            dataGridViewData.RowHeadersVisible = false;
+            dataGridViewData.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewData.Size = new Size(677, 450);
+            dataGridViewData.TabIndex = 1;
+            // 
+            // FormCustomers
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(dataGridViewData);
+            Controls.Add(panel);
+            Name = "FormCustomers";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Заказчики";
+            Load += FormCustomers_Load;
+            panel.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel;
+        private Button buttonAdd;
+        private Button buttonDel;
+        private Button buttonUpd;
+        private DataGridView dataGridViewData;
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormCustomers.cs

@@ -0,0 +1,96 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+using Unity;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    public partial class FormCustomers : Form
+    {
+        private readonly IUnityContainer _container;
+
+        private readonly ICustomerRepository _customerRepository;
+
+        public FormCustomers(IUnityContainer container, ICustomerRepository customerRepository)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentException(nameof(container));
+            _customerRepository = customerRepository ?? throw new ArgumentException(nameof(customerRepository));
+        }
+
+        private void FormCustomers_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<FormCustomer>().ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при добавлении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonUpd_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFromSelectedRow(out var findId))
+                return;
+
+            try
+            {
+                var form = _container.Resolve<FormCustomer>();
+                form.Id = findId;
+                form.ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при изменении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonDel_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFromSelectedRow(out var findId))
+                return;
+
+            if (MessageBox.Show("Удалить запись?", "Удаление", MessageBoxButtons.YesNo) != DialogResult.Yes)
+                return;
+
+            try
+            {
+                _customerRepository.DeleteCustomer(findId);
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridViewData.DataSource = _customerRepository.ReadCustomers();
+
+        private bool TryGetIdentifierFromSelectedRow(out int id)
+        {
+            id = 0;
+            if (dataGridViewData.SelectedRows.Count < 1)
+            {
+                MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return false;
+            }
+
+            id = Convert.ToInt32(dataGridViewData.SelectedRows[0].Cells["Id"].Value);
+            return true;
+        }
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormCustomers.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>

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormExecutor.Designer.cs

@@ -0,0 +1,120 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    partial class FormExecutor
+    {
+        /// <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()
+        {
+            comboBoxExecutorPost = new ComboBox();
+            LabelExecutorName = new Label();
+            labelExecutorPost = new Label();
+            textBoxExecutorName = new TextBox();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            SuspendLayout();
+            // 
+            // comboBoxExecutorPost
+            // 
+            comboBoxExecutorPost.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxExecutorPost.FormattingEnabled = true;
+            comboBoxExecutorPost.Location = new Point(101, 41);
+            comboBoxExecutorPost.Name = "comboBoxExecutorPost";
+            comboBoxExecutorPost.Size = new Size(168, 23);
+            comboBoxExecutorPost.TabIndex = 0;
+            // 
+            // LabelExecutorName
+            // 
+            LabelExecutorName.AutoSize = true;
+            LabelExecutorName.Location = new Point(12, 15);
+            LabelExecutorName.Name = "LabelExecutorName";
+            LabelExecutorName.Size = new Size(34, 15);
+            LabelExecutorName.TabIndex = 1;
+            LabelExecutorName.Text = "Имя:";
+            // 
+            // labelExecutorPost
+            // 
+            labelExecutorPost.AutoSize = true;
+            labelExecutorPost.Location = new Point(12, 44);
+            labelExecutorPost.Name = "labelExecutorPost";
+            labelExecutorPost.Size = new Size(72, 15);
+            labelExecutorPost.TabIndex = 2;
+            labelExecutorPost.Text = "Должность:";
+            // 
+            // textBoxExecutorName
+            // 
+            textBoxExecutorName.Location = new Point(101, 12);
+            textBoxExecutorName.Name = "textBoxExecutorName";
+            textBoxExecutorName.Size = new Size(168, 23);
+            textBoxExecutorName.TabIndex = 4;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(12, 70);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(257, 23);
+            buttonSave.TabIndex = 7;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(12, 99);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(257, 23);
+            buttonCancel.TabIndex = 8;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormExecutor
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(281, 133);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxExecutorName);
+            Controls.Add(labelExecutorPost);
+            Controls.Add(LabelExecutorName);
+            Controls.Add(comboBoxExecutorPost);
+            Name = "FormExecutor";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Исполнитель";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private ComboBox comboBoxExecutorPost;
+        private Label LabelExecutorName;
+        private Label labelExecutorPost;
+        private TextBox textBoxExecutorName;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormExecutor.cs

@@ -0,0 +1,68 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+using PIbd_23_Gutorov_I.A._IT_Company.Entities.Enums;
+using PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    public partial class FormExecutor : Form
+    {
+        private readonly IExecutorRepository _executorRepository;
+
+        private int? _executorId;
+
+        public int Id
+        {
+            set
+            {
+                try
+                {
+                    var executor = _executorRepository.ReadExecutorById(value);
+                    if (executor == null) throw new InvalidDataException(nameof(executor));
+
+                    textBoxExecutorName.Text = executor.Name;
+                    comboBoxExecutorPost.SelectedItem = executor.Post;
+                    _executorId = value;
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка при получении данных", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    return;
+                }
+            }
+        }
+
+        public FormExecutor(IExecutorRepository executorRepository)
+        {
+            InitializeComponent();
+            _executorRepository = executorRepository ?? throw new ArgumentNullException(nameof(executorRepository));
+
+            comboBoxExecutorPost.DataSource = Enum.GetValues(typeof(ExecutorPost));
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (string.IsNullOrEmpty(textBoxExecutorName.Text) ||
+                    comboBoxExecutorPost.SelectedIndex < 1)
+                {
+                    throw new Exception("Имеются незаполненные поля");
+                }
+
+                if (_executorId.HasValue) _executorRepository.UpdateExecutor(CreateExecutor(_executorId.Value));
+                else _executorRepository.CreateExecutor(CreateExecutor(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 Executor CreateExecutor(int id) =>
+            Executor.CreateEntity(id, textBoxExecutorName.Text, (ExecutorPost)comboBoxExecutorPost.SelectedItem!);
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormExecutor.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>

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormExecutors.Designer.cs

@@ -0,0 +1,126 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    partial class FormExecutors
+    {
+        /// <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()
+        {
+            dataGridViewData = new DataGridView();
+            panel = new Panel();
+            buttonDel = new Button();
+            buttonUpd = new Button();
+            buttonAdd = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).BeginInit();
+            panel.SuspendLayout();
+            SuspendLayout();
+            // 
+            // dataGridViewData
+            // 
+            dataGridViewData.AllowUserToAddRows = false;
+            dataGridViewData.AllowUserToDeleteRows = false;
+            dataGridViewData.AllowUserToResizeColumns = false;
+            dataGridViewData.AllowUserToResizeRows = false;
+            dataGridViewData.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewData.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewData.Dock = DockStyle.Fill;
+            dataGridViewData.Location = new Point(0, 0);
+            dataGridViewData.MultiSelect = false;
+            dataGridViewData.Name = "dataGridViewData";
+            dataGridViewData.ReadOnly = true;
+            dataGridViewData.RowHeadersVisible = false;
+            dataGridViewData.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewData.Size = new Size(677, 450);
+            dataGridViewData.TabIndex = 3;
+            // 
+            // panel
+            // 
+            panel.Controls.Add(buttonDel);
+            panel.Controls.Add(buttonUpd);
+            panel.Controls.Add(buttonAdd);
+            panel.Dock = DockStyle.Right;
+            panel.Location = new Point(677, 0);
+            panel.Name = "panel";
+            panel.Size = new Size(123, 450);
+            panel.TabIndex = 2;
+            // 
+            // buttonDel
+            // 
+            buttonDel.BackgroundImage = Properties.Resources.icon_remove_button;
+            buttonDel.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonDel.Location = new Point(16, 204);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(90, 90);
+            buttonDel.TabIndex = 2;
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += ButtonDel_Click;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.BackgroundImage = Properties.Resources.icon_edit_button;
+            buttonUpd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonUpd.Location = new Point(16, 108);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(90, 90);
+            buttonUpd.TabIndex = 1;
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += ButtonUpd_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.BackgroundImage = Properties.Resources.icon_add_button;
+            buttonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonAdd.Location = new Point(16, 12);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(90, 90);
+            buttonAdd.TabIndex = 0;
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // FormExecutors
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(dataGridViewData);
+            Controls.Add(panel);
+            Name = "FormExecutors";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Исполнители";
+            Load += FormExecutors_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).EndInit();
+            panel.ResumeLayout(false);
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridViewData;
+        private Panel panel;
+        private Button buttonDel;
+        private Button buttonUpd;
+        private Button buttonAdd;
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormExecutors.cs

@@ -0,0 +1,96 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+using Unity;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    public partial class FormExecutors : Form
+    {
+        private readonly IUnityContainer _container;
+
+        private readonly IExecutorRepository _executorRepository;
+
+        public FormExecutors(IUnityContainer container, IExecutorRepository executorRepository)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentException(nameof(container));
+            _executorRepository = executorRepository ?? throw new ArgumentException(nameof(executorRepository));
+        }
+
+        private void FormExecutors_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<FormExecutor>().ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при добавлении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonUpd_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFromSelectedRow(out var findId))
+                return;
+
+            try
+            {
+                var form = _container.Resolve<FormExecutor>();
+                form.Id = findId;
+                form.ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при изменении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonDel_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFromSelectedRow(out var findId))
+                return;
+
+            if (MessageBox.Show("Удалить запись?", "Удаление", MessageBoxButtons.YesNo) != DialogResult.Yes)
+                return;
+
+            try
+            {
+                _executorRepository.DeleteExecutor(findId);
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridViewData.DataSource = _executorRepository.ReadExecutors();
+
+        private bool TryGetIdentifierFromSelectedRow(out int id)
+        {
+            id = 0;
+            if (dataGridViewData.SelectedRows.Count < 1)
+            {
+                MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return false;
+            }
+
+            id = Convert.ToInt32(dataGridViewData.SelectedRows[0].Cells["Id"].Value);
+            return true;
+        }
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormExecutors.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>

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormService.Designer.cs

@@ -0,0 +1,96 @@
+namespace PIbd_23_Gutorov_I.A._IT_Company.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()
+        {
+            labelServiceDescription = new Label();
+            richTextBoxServiceDescription = new RichTextBox();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            SuspendLayout();
+            // 
+            // labelServiceDescription
+            // 
+            labelServiceDescription.AutoSize = true;
+            labelServiceDescription.Location = new Point(16, 15);
+            labelServiceDescription.Name = "labelServiceDescription";
+            labelServiceDescription.Size = new Size(65, 15);
+            labelServiceDescription.TabIndex = 30;
+            labelServiceDescription.Text = "Описание:";
+            // 
+            // richTextBoxServiceDescription
+            // 
+            richTextBoxServiceDescription.Location = new Point(173, 12);
+            richTextBoxServiceDescription.Name = "richTextBoxServiceDescription";
+            richTextBoxServiceDescription.Size = new Size(202, 96);
+            richTextBoxServiceDescription.TabIndex = 29;
+            richTextBoxServiceDescription.Text = "";
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(16, 143);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(359, 23);
+            buttonCancel.TabIndex = 32;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(16, 114);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(359, 23);
+            buttonSave.TabIndex = 31;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // FormService
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(387, 181);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(labelServiceDescription);
+            Controls.Add(richTextBoxServiceDescription);
+            Name = "FormService";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Услуга";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+        private Label labelServiceDescription;
+        private RichTextBox richTextBoxServiceDescription;
+        private Button buttonCancel;
+        private Button buttonSave;
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormService.cs

@@ -0,0 +1,58 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+using PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    public partial class FormService : Form
+    {
+        private readonly IServiceRepository _serviceRepository;
+
+        private int? _serviceId;
+
+        public int Id
+        {
+            set
+            {
+                try
+                {
+                    var service = _serviceRepository.ReadServiceById(value);
+                    if (service == null) throw new InvalidDataException(nameof(service));
+
+                    richTextBoxServiceDescription.Text = service.Description;
+                    _serviceId = value;
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка при получении данных", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    return;
+                }
+            }
+        }
+
+        public FormService(IServiceRepository serviceRepository)
+        {
+            InitializeComponent();
+            _serviceRepository = serviceRepository ?? throw new ArgumentNullException(nameof(serviceRepository));
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (string.IsNullOrEmpty(richTextBoxServiceDescription.Text))
+                    throw new Exception("Имеются незаполненные поля");
+
+                if (_serviceId.HasValue) _serviceRepository.UpdateService(Service.CreateEntity(_serviceId.Value, richTextBoxServiceDescription.Text));
+                else _serviceRepository.CreateService(Service.CreateEntity(0, richTextBoxServiceDescription.Text));
+
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при сохранении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e) => Close();
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormServices.Designer.cs

@@ -0,0 +1,130 @@
+using static System.Net.Mime.MediaTypeNames;
+using System.Windows.Forms;
+using System.Xml.Linq;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    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()
+        {
+            dataGridViewData = new DataGridView();
+            panel = new Panel();
+            buttonDel = new Button();
+            buttonUpd = new Button();
+            buttonAdd = new Button();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).BeginInit();
+            panel.SuspendLayout();
+            SuspendLayout();
+            // 
+            // dataGridViewData
+            // 
+            dataGridViewData.AllowUserToAddRows = false;
+            dataGridViewData.AllowUserToDeleteRows = false;
+            dataGridViewData.AllowUserToResizeColumns = false;
+            dataGridViewData.AllowUserToResizeRows = false;
+            dataGridViewData.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewData.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewData.Dock = DockStyle.Fill;
+            dataGridViewData.Location = new Point(0, 0);
+            dataGridViewData.MultiSelect = false;
+            dataGridViewData.Name = "dataGridViewData";
+            dataGridViewData.ReadOnly = true;
+            dataGridViewData.RowHeadersVisible = false;
+            dataGridViewData.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewData.Size = new Size(677, 450);
+            dataGridViewData.TabIndex = 5;
+            // 
+            // panel
+            // 
+            panel.Controls.Add(buttonDel);
+            panel.Controls.Add(buttonUpd);
+            panel.Controls.Add(buttonAdd);
+            panel.Dock = DockStyle.Right;
+            panel.Location = new Point(677, 0);
+            panel.Name = "panel";
+            panel.Size = new Size(123, 450);
+            panel.TabIndex = 4;
+            // 
+            // buttonDel
+            // 
+            buttonDel.BackgroundImage = Properties.Resources.icon_remove_button;
+            buttonDel.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonDel.Location = new Point(16, 204);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(90, 90);
+            buttonDel.TabIndex = 2;
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += ButtonDel_Click;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.BackgroundImage = Properties.Resources.icon_edit_button;
+            buttonUpd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonUpd.Location = new Point(16, 108);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(90, 90);
+            buttonUpd.TabIndex = 1;
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += ButtonUpd_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.BackgroundImage = Properties.Resources.icon_add_button;
+            buttonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            buttonAdd.Location = new Point(16, 12);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(90, 90);
+            buttonAdd.TabIndex = 0;
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // FormServices
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(dataGridViewData);
+            Controls.Add(panel);
+            Name = "FormServices";
+            StartPosition = FormStartPosition.CenterParent;
+            Text = "Услуги";
+            Load += FormServices_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).EndInit();
+            panel.ResumeLayout(false);
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private DataGridView dataGridViewData;
+        private Panel panel;
+        private Button buttonDel;
+        private Button buttonUpd;
+        private Button buttonAdd;
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Forms/FormServices.cs

@@ -0,0 +1,96 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+using Unity;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Forms
+{
+    public partial class FormServices : Form
+    {
+        private readonly IUnityContainer _container;
+
+        private readonly IServiceRepository _serviceRepository;
+
+        public FormServices(IUnityContainer container, IServiceRepository serviceRepository)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentException(nameof(container));
+            _serviceRepository = serviceRepository ?? throw new ArgumentException(nameof(serviceRepository));
+        }
+
+        private void FormServices_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<FormService>().ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при добавлении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonUpd_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFromSelectedRow(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 ButtonDel_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIdentifierFromSelectedRow(out var findId))
+                return;
+
+            if (MessageBox.Show("Удалить запись?", "Удаление", MessageBoxButtons.YesNo) != DialogResult.Yes)
+                return;
+
+            try
+            {
+                _serviceRepository.DeleteService(findId);
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridViewData.DataSource = _serviceRepository.ReadServices();
+
+        private bool TryGetIdentifierFromSelectedRow(out int id)
+        {
+            id = 0;
+            if (dataGridViewData.SelectedRows.Count < 1)
+            {
+                MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return false;
+            }
+
+            id = Convert.ToInt32(dataGridViewData.SelectedRows[0].Cells["Id"].Value);
+            return true;
+        }
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/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>

PIbd-23_Gutorov_I.A._IT-Company/PIbd-23_Gutorov_I.A._IT-Company.csproj

@@ -9,4 +9,23 @@
     <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>

PIbd-23_Gutorov_I.A._IT-Company/Program.cs

@@ -1,3 +1,7 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+using PIbd_23_Gutorov_I.A._IT_Company.Repositories.Implementations;
+using Unity;
+
 namespace PIbd_23_Gutorov_I.A._IT_Company
 {
     internal static class Program
@@ -11,7 +15,20 @@ namespace PIbd_23_Gutorov_I.A._IT_Company
             // 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<FormItCompany>());
+        }
+
+        private static IUnityContainer CreateContainer()
+        {
+            var container = new UnityContainer();
+
+            container.RegisterType<IContractRepository, ContractRepository>();
+            container.RegisterType<ICustomerExecutorReviewRepository, CustomerExecutorReviewRepository>();
+            container.RegisterType<ICustomerRepository, CustomerRepository>();
+            container.RegisterType<IExecutorRepository, ExecutorRepository>();
+            container.RegisterType<IServiceRepository, ServiceRepository>();
+
+            return container;
         }
     }
 }

PIbd-23_Gutorov_I.A._IT-Company/Properties/Resources.Designer.cs

@@ -0,0 +1,103 @@
+//------------------------------------------------------------------------------
+// <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 PIbd_23_Gutorov_I.A._IT_Company.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("PIbd_23_Gutorov_I.A._IT_Company.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 icon_add_button {
+            get {
+                object obj = ResourceManager.GetObject("icon-add-button", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        /// <summary>
+        ///   Поиск локализованного ресурса типа System.Drawing.Bitmap.
+        /// </summary>
+        internal static System.Drawing.Bitmap icon_edit_button {
+            get {
+                object obj = ResourceManager.GetObject("icon-edit-button", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        /// <summary>
+        ///   Поиск локализованного ресурса типа System.Drawing.Bitmap.
+        /// </summary>
+        internal static System.Drawing.Bitmap icon_remove_button {
+            get {
+                object obj = ResourceManager.GetObject("icon-remove-button", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        /// <summary>
+        ///   Поиск локализованного ресурса типа System.Drawing.Bitmap.
+        /// </summary>
+        internal static System.Drawing.Bitmap modern_equipped_computer_lab {
+            get {
+                object obj = ResourceManager.GetObject("modern-equipped-computer-lab", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Properties/Resources.resx

@@ -0,0 +1,133 @@
+<?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="modern-equipped-computer-lab" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\modern-equipped-computer-lab.jpg;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+  <data name="icon-add-button" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\icon-add-button.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+  <data name="icon-edit-button" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\icon-edit-button.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+  <data name="icon-remove-button" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\icon-remove-button.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+</root>

PIbd-23_Gutorov_I.A._IT-Company/Repositories/IContractRepository.cs

@@ -0,0 +1,12 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+
+public interface IContractRepository
+{
+    IEnumerable<Contract> ReadContracts(DateTime? dateFrom = null, DateTime? dateTo = null, int? customerId = null, int? executorId = null);
+
+    void CreateContract(Contract contract);
+
+    void DeleteContract(int id);
+}

PIbd-23_Gutorov_I.A._IT-Company/Repositories/ICustomerExecutorReviewRepository.cs

@@ -0,0 +1,12 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+
+public interface ICustomerExecutorReviewRepository
+{
+    IEnumerable<CustomerExecutorReview> ReadCustomerExecutorReviews(int? customerId = null, int? executorId = null);
+
+    CustomerExecutorReview ReadCustomerExecutorReviewById(int id);
+
+    void CreateCustomerExecutorReview(CustomerExecutorReview customerContractReview);
+}

PIbd-23_Gutorov_I.A._IT-Company/Repositories/ICustomerRepository.cs

@@ -0,0 +1,16 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+
+public interface ICustomerRepository
+{
+    IEnumerable<Customer> ReadCustomers();
+
+    Customer ReadCustomerById(int id);
+
+    void CreateCustomer(Customer customer);
+
+    void UpdateCustomer(Customer customer);
+
+    void DeleteCustomer(int id);
+}

PIbd-23_Gutorov_I.A._IT-Company/Repositories/IExecutorRepository.cs

@@ -0,0 +1,16 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+
+public interface IExecutorRepository
+{
+    IEnumerable<Executor> ReadExecutors();
+
+    Executor ReadExecutorById(int id);
+
+    void CreateExecutor(Executor executor);
+
+    void UpdateExecutor(Executor executor);
+
+    void DeleteExecutor(int id);
+}

PIbd-23_Gutorov_I.A._IT-Company/Repositories/IServiceRepository.cs

@@ -0,0 +1,16 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Repositories;
+
+public interface IServiceRepository
+{
+    IEnumerable<Service> ReadServices();
+
+    Service ReadServiceById(int id);
+
+    void CreateService(Service service);
+
+    void UpdateService(Service service);
+
+    void DeleteService(int id);
+}

PIbd-23_Gutorov_I.A._IT-Company/Repositories/Implementations/ContractRepository.cs

@@ -0,0 +1,19 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Repositories.Implementations;
+
+public class ContractRepository : IContractRepository
+{
+    public void CreateContract(Contract contract)
+    {
+    }
+
+    public void DeleteContract(int id)
+    {
+    }
+
+    public IEnumerable<Contract> ReadContracts(DateTime? dateFrom = null, DateTime? dateTo = null, int? customerId = null, int? executorId = null)
+    {
+        return [];
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Repositories/Implementations/CustomerExecutorReviewRepository.cs

@@ -0,0 +1,20 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Repositories.Implementations;
+
+public class CustomerExecutorReviewRepository : ICustomerExecutorReviewRepository
+{
+    public void CreateCustomerExecutorReview(CustomerExecutorReview customerContractReview)
+    {
+    }
+
+    public CustomerExecutorReview ReadCustomerExecutorReviewById(int id)
+    {
+        return CustomerExecutorReview.CreateElement(0, 0, 0, string.Empty, 0);
+    }
+
+    public IEnumerable<CustomerExecutorReview> ReadCustomerExecutorReviews(int? customerId = null, int? executorId = null)
+    {
+        return [];
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Repositories/Implementations/CustomerRepository.cs

@@ -0,0 +1,28 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Repositories.Implementations;
+
+public class CustomerRepository : ICustomerRepository
+{
+    public void CreateCustomer(Customer customer)
+    {
+    }
+
+    public void DeleteCustomer(int id)
+    {
+    }
+
+    public Customer ReadCustomerById(int id)
+    {
+        return Customer.CreateEntity(0, string.Empty, string.Empty, string.Empty);
+    }
+
+    public IEnumerable<Customer> ReadCustomers()
+    {
+        return [];
+    }
+
+    public void UpdateCustomer(Customer customer)
+    {
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Repositories/Implementations/ExecutorRepository.cs

@@ -0,0 +1,28 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Repositories.Implementations;
+
+public class ExecutorRepository : IExecutorRepository
+{
+    public void CreateExecutor(Executor executor)
+    {
+    }
+
+    public void DeleteExecutor(int id)
+    {
+    }
+
+    public Executor ReadExecutorById(int id)
+    {
+        return Executor.CreateEntity(0, string.Empty, Entities.Enums.ExecutorPost.None);
+    }
+
+    public IEnumerable<Executor> ReadExecutors()
+    {
+        return [];
+    }
+
+    public void UpdateExecutor(Executor executor)
+    {
+    }
+}

PIbd-23_Gutorov_I.A._IT-Company/Repositories/Implementations/ServiceRepository.cs

@@ -0,0 +1,28 @@
+using PIbd_23_Gutorov_I.A._IT_Company.Entities;
+
+namespace PIbd_23_Gutorov_I.A._IT_Company.Repositories.Implementations;
+
+internal class ServiceRepository : IServiceRepository
+{
+    public void CreateService(Service service)
+    {
+    }
+
+    public void DeleteService(int id)
+    {
+    }
+
+    public Service ReadServiceById(int id)
+    {
+        return Service.CreateEntity(0, string.Empty);
+    }
+
+    public IEnumerable<Service> ReadServices()
+    {
+        return [];
+    }
+
+    public void UpdateService(Service service)
+    {
+    }
+}