work lab2

Project.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.8.34330.188
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Project", "Project\Project.csproj", "{20DFB231-B331-41C8-8C8D-8293FDEE4023}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{20DFB231-B331-41C8-8C8D-8293FDEE4023}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{20DFB231-B331-41C8-8C8D-8293FDEE4023}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{20DFB231-B331-41C8-8C8D-8293FDEE4023}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{20DFB231-B331-41C8-8C8D-8293FDEE4023}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {CACB01CD-8991-4D56-B8A9-D67FBE78F74C}
+	EndGlobalSection
+EndGlobal

Project/Entities/Enums/CategoryType.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Project.Entities.Enums;
+
+public enum CategoryType
+{
+    None,
+    Office,
+    Gaming
+}

Project/Entities/Enums/ProductAttributes.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Project.Entities.Enums;
+
+[Flags]
+public enum ProductAttributes
+{
+    None = 0,
+    Popularity = 1,
+    Discount = 2,
+    Exclusive = 4,
+}

Project/Entities/Manufacturer.cs

@@ -0,0 +1,11 @@
+namespace Project.Entities;
+
+public class Manufacturer
+{
+    public int Id { get; private set; }
+    public string Name { get; private set; } = string.Empty;
+    public static Manufacturer CreateOperation(int id, string name)
+    {
+        return new Manufacturer { Id = id, Name = name };
+    }
+}

Project/Entities/Product.cs

@@ -0,0 +1,19 @@
+using Project.Entities.Enums;
+
+namespace Project.Entities;
+
+public class Product
+{
+    public int Id { get; private set; }
+    public string Name { get; private set; } = string.Empty;
+    public string Description { get; private set; } = string.Empty;
+    public float Price { get; private set; }
+    public float Cost { get; private set; }
+    public int ManufacturerId { get; private set; }
+    public CategoryType Category {  get; private set; }
+    public ProductAttributes Attributes { get; private set; }
+    public static Product CreteOperation(int id, string name, string description, float price, float cost, int manufacturerId, CategoryType category, ProductAttributes attributes)
+    {
+        return new Product { Id = id, Name = name, Description = description, Price = price, Cost = cost, ManufacturerId = manufacturerId, Category = category, Attributes = attributes };
+    }
+}

Project/Entities/Sale.cs

@@ -0,0 +1,12 @@
+namespace Project.Entities;
+
+public class Sale
+{
+    public int Id { get; private set; }
+    public DateTime Date { get; private set; }
+    public IEnumerable<SaleProduct> SaleProducts { get; private set; } = [];
+    public static Sale CreteOperation(int id, DateTime date, IEnumerable<SaleProduct> saleProducts)
+    {
+        return new Sale { Id = id, Date = date, SaleProducts = saleProducts };
+    }
+}

Project/Entities/SaleProduct.cs

@@ -0,0 +1,12 @@
+namespace Project.Entities;
+
+public class SaleProduct
+{
+    public int Id { get; private set; }
+    public int ProductId { get; private set;}
+    public int Quantity { get; private set; }
+    public static SaleProduct CreateOperation(int id, int productId, int quantity)
+    {
+        return new SaleProduct { Id = id, ProductId = productId, Quantity = quantity };
+    }
+}

Project/Entities/Work.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Project.Entities;
+
+public class Work
+{
+    public int Id { get; private set; }
+    public int ProductId { get; private set; }
+    public int WorkTypeID { get; private set; }
+    public DateTime Date { get; private set; }
+
+    public static Work CreateOperation(int id, int productId, int workTypeID, DateTime date)
+    {
+        return new Work { Id = id, ProductId = productId, WorkTypeID = workTypeID, Date = date };
+    }
+}

Project/Entities/WorkType.cs

@@ -0,0 +1,13 @@
+namespace Project.Entities;
+
+public class WorkType
+{
+    public int Id { get; private set; }
+    public string Name { get; private set; } = string.Empty;
+    public string Description { get; private set; } = string.Empty;
+    public float Price { get; private set; }
+    public static WorkType CreateOperation(int id, string name, string description, float price)
+    {
+        return new WorkType { Id = id, Name = name, Description = description, Price = price };
+    }
+}

Project/Form1.Designer.cs

@@ -0,0 +1,137 @@
+namespace Project
+{
+    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()
+        {
+            System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
+            menuStrip1 = new MenuStrip();
+            справочникиToolStripMenuItem = new ToolStripMenuItem();
+            toolStripMenuItemProducts = new ToolStripMenuItem();
+            toolStripMenuItemWorks = new ToolStripMenuItem();
+            toolStripMenuItemManufacturers = new ToolStripMenuItem();
+            операцииToolStripMenuItem = new ToolStripMenuItem();
+            toolStripMenuItemSales = new ToolStripMenuItem();
+            отчетыToolStripMenuItem = new ToolStripMenuItem();
+            toolStripMenuAddWork = new ToolStripMenuItem();
+            menuStrip1.SuspendLayout();
+            SuspendLayout();
+            // 
+            // menuStrip1
+            // 
+            menuStrip1.Items.AddRange(new ToolStripItem[] { справочникиToolStripMenuItem, операцииToolStripMenuItem, отчетыToolStripMenuItem });
+            menuStrip1.Location = new Point(0, 0);
+            menuStrip1.Name = "menuStrip1";
+            menuStrip1.Size = new Size(800, 24);
+            menuStrip1.TabIndex = 0;
+            menuStrip1.Text = "menuStrip1";
+            // 
+            // справочникиToolStripMenuItem
+            // 
+            справочникиToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { toolStripMenuItemProducts, toolStripMenuItemWorks, toolStripMenuItemManufacturers });
+            справочникиToolStripMenuItem.Name = "справочникиToolStripMenuItem";
+            справочникиToolStripMenuItem.Size = new Size(94, 20);
+            справочникиToolStripMenuItem.Text = "Справочники";
+            // 
+            // toolStripMenuItemProducts
+            // 
+            toolStripMenuItemProducts.Name = "toolStripMenuItemProducts";
+            toolStripMenuItemProducts.Size = new Size(180, 22);
+            toolStripMenuItemProducts.Text = "Товары";
+            toolStripMenuItemProducts.Click += toolStripMenuItemProducts_Click;
+            // 
+            // toolStripMenuItemWorks
+            // 
+            toolStripMenuItemWorks.Name = "toolStripMenuItemWorks";
+            toolStripMenuItemWorks.Size = new Size(180, 22);
+            toolStripMenuItemWorks.Text = "Виды работ";
+            toolStripMenuItemWorks.Click += toolStripMenuItemWorks_Click;
+            // 
+            // toolStripMenuItemManufacturers
+            // 
+            toolStripMenuItemManufacturers.Name = "toolStripMenuItemManufacturers";
+            toolStripMenuItemManufacturers.Size = new Size(180, 22);
+            toolStripMenuItemManufacturers.Text = "Производители";
+            toolStripMenuItemManufacturers.Click += toolStripMenuItemManufacturers_Click;
+            // 
+            // операцииToolStripMenuItem
+            // 
+            операцииToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { toolStripMenuItemSales, toolStripMenuAddWork });
+            операцииToolStripMenuItem.Name = "операцииToolStripMenuItem";
+            операцииToolStripMenuItem.Size = new Size(75, 20);
+            операцииToolStripMenuItem.Text = "Операции";
+            // 
+            // toolStripMenuItemSales
+            // 
+            toolStripMenuItemSales.Name = "toolStripMenuItemSales";
+            toolStripMenuItemSales.Size = new Size(184, 22);
+            toolStripMenuItemSales.Text = "Оформить продажу";
+            toolStripMenuItemSales.Click += toolStripMenuItemSales_Click;
+            // 
+            // отчетыToolStripMenuItem
+            // 
+            отчетыToolStripMenuItem.Name = "отчетыToolStripMenuItem";
+            отчетыToolStripMenuItem.Size = new Size(60, 20);
+            отчетыToolStripMenuItem.Text = "Отчеты";
+            // 
+            // toolStripMenuAddWork
+            // 
+            toolStripMenuAddWork.Name = "toolStripMenuAddWork";
+            toolStripMenuAddWork.Size = new Size(184, 22);
+            toolStripMenuAddWork.Text = "Оформить работу";
+            toolStripMenuAddWork.Click += toolStripMenuAddWork_Click;
+            // 
+            // Form1
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            BackgroundImage = (Image)resources.GetObject("$this.BackgroundImage");
+            BackgroundImageLayout = ImageLayout.Stretch;
+            ClientSize = new Size(800, 450);
+            Controls.Add(menuStrip1);
+            MainMenuStrip = menuStrip1;
+            Name = "Form1";
+            Text = "Продажи компьютерной техники";
+            menuStrip1.ResumeLayout(false);
+            menuStrip1.PerformLayout();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private MenuStrip menuStrip1;
+        private ToolStripMenuItem справочникиToolStripMenuItem;
+        private ToolStripMenuItem toolStripMenuItemProducts;
+        private ToolStripMenuItem toolStripMenuItemWorks;
+        private ToolStripMenuItem toolStripMenuItemManufacturers;
+        private ToolStripMenuItem операцииToolStripMenuItem;
+        private ToolStripMenuItem toolStripMenuItemSales;
+        private ToolStripMenuItem отчетыToolStripMenuItem;
+        private ToolStripMenuItem toolStripMenuAddWork;
+    }
+}

Project/Form1.cs

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+using Project.Forms;
+using System.ComponentModel;
+using Unity;
+
+namespace Project
+{
+    public partial class Form1 : Form
+    {
+        private readonly IUnityContainer _container;
+        public Form1(IUnityContainer container)
+        {
+            InitializeComponent();
+            _container = container ?? throw new ArgumentNullException(nameof(container));
+        }
+
+        private void toolStripMenuItemProducts_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormProducts>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void toolStripMenuItemWorks_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormWorkTypes>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void toolStripMenuItemManufacturers_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormManufacturers>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void toolStripMenuItemSales_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormSales>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void toolStripMenuAddWork_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormWorks>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè çàãðóçêå", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+    }
+}

Project/Forms/FormManufacturer.Designer.cs

@@ -0,0 +1,95 @@
+namespace Project.Forms
+{
+    partial class FormManufacturer
+    {
+        /// <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()
+        {
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            label1 = new Label();
+            textBoxName = new TextBox();
+            SuspendLayout();
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(24, 72);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(75, 23);
+            buttonCancel.TabIndex = 0;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(194, 72);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(75, 23);
+            buttonSave.TabIndex = 1;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(24, 27);
+            label1.Name = "label1";
+            label1.Size = new Size(62, 15);
+            label1.TabIndex = 2;
+            label1.Text = "Название:";
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(92, 24);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(177, 23);
+            textBoxName.TabIndex = 3;
+            // 
+            // FormManufacturer
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(289, 113);
+            Controls.Add(textBoxName);
+            Controls.Add(label1);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Name = "FormManufacturer";
+            Text = "Производитель";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Button buttonCancel;
+        private Button buttonSave;
+        private Label label1;
+        private TextBox textBoxName;
+    }
+}

Project/Forms/FormManufacturer.cs

@@ -0,0 +1,65 @@
+using Project.Entities;
+using Project.Repositories;
+
+namespace Project.Forms
+{
+    public partial class FormManufacturer : Form
+    {
+        private readonly IManufacturerRepository _manufacturerRepository;
+        private int? _manufacturerId;
+
+        public int Id
+        {
+            set
+            {
+                try
+                {
+                    var manufacturer = _manufacturerRepository.GetManufacturerById(value);
+                    if (manufacturer == null)
+                    {
+                        throw new InvalidDataException(nameof(manufacturer));
+                    }
+                    textBoxName.Text = manufacturer.Name;
+                    _manufacturerId = value;
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка при получении данных", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    return;
+                }
+            }
+        }
+        public FormManufacturer(IManufacturerRepository manufacturerRepository)
+        {
+            _manufacturerRepository = manufacturerRepository ?? throw new ArgumentNullException(nameof(manufacturerRepository));
+            InitializeComponent();
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (string.IsNullOrEmpty(textBoxName.Text))
+                {
+                    throw new Exception("Имеются незаполненные поля");
+                }
+                if (_manufacturerId.HasValue)
+                {
+                    _manufacturerRepository.UpdateManufacturer(CreateOperation(_manufacturerId.Value));
+                } else
+                {
+                    _manufacturerRepository.AddManufacturer(CreateOperation(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 Manufacturer CreateOperation(int id) => Manufacturer.CreateOperation(id, textBoxName.Text);
+    }
+}

Project/Forms/FormManufacturer.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>

Project/Forms/FormManufacturers.Designer.cs

@@ -0,0 +1,125 @@
+namespace Project.Forms
+{
+    partial class FormManufacturers
+    {
+        /// <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()
+        {
+            panel1 = new Panel();
+            ButtonDel = new Button();
+            ButtonUpd = new Button();
+            ButtonAdd = new Button();
+            dataGridViewGroups = new DataGridView();
+            panel1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewGroups).BeginInit();
+            SuspendLayout();
+            // 
+            // panel1
+            // 
+            panel1.Controls.Add(ButtonDel);
+            panel1.Controls.Add(ButtonUpd);
+            panel1.Controls.Add(ButtonAdd);
+            panel1.Dock = DockStyle.Right;
+            panel1.Location = new Point(828, 0);
+            panel1.Name = "panel1";
+            panel1.Size = new Size(125, 439);
+            panel1.TabIndex = 0;
+            // 
+            // ButtonDel
+            // 
+            ButtonDel.BackgroundImage = Properties.Resources.Del;
+            ButtonDel.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonDel.Location = new Point(13, 278);
+            ButtonDel.Name = "ButtonDel";
+            ButtonDel.Size = new Size(101, 100);
+            ButtonDel.TabIndex = 3;
+            ButtonDel.UseVisualStyleBackColor = true;
+            ButtonDel.Click += ButtonDel_Click;
+            // 
+            // ButtonUpd
+            // 
+            ButtonUpd.BackgroundImage = Properties.Resources.Upd;
+            ButtonUpd.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonUpd.Location = new Point(13, 172);
+            ButtonUpd.Name = "ButtonUpd";
+            ButtonUpd.Size = new Size(100, 100);
+            ButtonUpd.TabIndex = 2;
+            ButtonUpd.UseVisualStyleBackColor = true;
+            ButtonUpd.Click += ButtonUpd_Click;
+            // 
+            // ButtonAdd
+            // 
+            ButtonAdd.BackgroundImage = Properties.Resources.Add;
+            ButtonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonAdd.Location = new Point(13, 66);
+            ButtonAdd.Name = "ButtonAdd";
+            ButtonAdd.Size = new Size(100, 100);
+            ButtonAdd.TabIndex = 1;
+            ButtonAdd.UseVisualStyleBackColor = true;
+            ButtonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridViewGroups
+            // 
+            dataGridViewGroups.AllowUserToAddRows = false;
+            dataGridViewGroups.AllowUserToDeleteRows = false;
+            dataGridViewGroups.AllowUserToResizeColumns = false;
+            dataGridViewGroups.AllowUserToResizeRows = false;
+            dataGridViewGroups.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewGroups.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewGroups.Dock = DockStyle.Fill;
+            dataGridViewGroups.Location = new Point(0, 0);
+            dataGridViewGroups.MultiSelect = false;
+            dataGridViewGroups.Name = "dataGridViewGroups";
+            dataGridViewGroups.ReadOnly = true;
+            dataGridViewGroups.RowHeadersVisible = false;
+            dataGridViewGroups.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewGroups.Size = new Size(828, 439);
+            dataGridViewGroups.TabIndex = 2;
+            // 
+            // FormManufacturers
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(953, 439);
+            Controls.Add(dataGridViewGroups);
+            Controls.Add(panel1);
+            Name = "FormManufacturers";
+            Text = "Производители";
+            Load += FormManufacturers_Load;
+            panel1.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridViewGroups).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel1;
+        private Button ButtonAdd;
+        private Button ButtonUpd;
+        private Button ButtonDel;
+        private DataGridView dataGridViewGroups;
+    }
+}

Project/Forms/FormManufacturers.cs

@@ -0,0 +1,99 @@
+using Project.Repositories;
+
+using Unity;
+
+namespace Project.Forms;
+
+public partial class FormManufacturers : Form
+{
+
+    private readonly IUnityContainer _container;
+    private readonly IManufacturerRepository _manufacturerRepository;
+
+    public FormManufacturers(IUnityContainer container, IManufacturerRepository manufacturerRepository)
+    {
+        InitializeComponent();
+        _container = container ?? throw new ArgumentNullException(nameof(container));
+        _manufacturerRepository = manufacturerRepository ?? throw new ArgumentNullException(nameof(manufacturerRepository));
+    }
+
+    private void ButtonAdd_Click(object sender, EventArgs e)
+    {
+        try
+        {
+            _container.Resolve<FormManufacturer>().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<FormManufacturer>();
+            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
+        {
+            _manufacturerRepository.DeleteManufacturer(findId);
+            LoadList();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+        }
+    }
+
+    private void LoadList() => dataGridViewGroups.DataSource = _manufacturerRepository.GetAllManufacturers();
+
+    private bool TryGetIdentifierFromSelectedRow(out int id)
+    {
+        id = 0;
+        if (dataGridViewGroups.SelectedRows.Count < 1)
+        {
+            MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            return false;
+        }
+        id = Convert.ToInt32(dataGridViewGroups.SelectedRows[0].Cells["ID"].Value);
+        return true;
+    }
+
+    private void FormManufacturers_Load(object sender, EventArgs e)
+    {
+        try
+        {
+            LoadList();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(ex.Message, "Ошибка при загрузке",
+            MessageBoxButtons.OK, MessageBoxIcon.Error);
+        }
+    }
+}

Project/Forms/FormManufacturers.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>

Project/Forms/FormProduct.Designer.cs

@@ -0,0 +1,239 @@
+namespace Project.Forms
+{
+    partial class FormProduct
+    {
+        /// <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()
+        {
+            label1 = new Label();
+            label2 = new Label();
+            label3 = new Label();
+            label4 = new Label();
+            label5 = new Label();
+            label6 = new Label();
+            checkedListBoxAttributes = new CheckedListBox();
+            groupBox1 = new GroupBox();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            textBoxName = new TextBox();
+            textBoxDescription = new TextBox();
+            numericUpDownPrice = new NumericUpDown();
+            numericUpDownCost = new NumericUpDown();
+            comboBoxManufacturer = new ComboBox();
+            comboBoxCategory = new ComboBox();
+            groupBox1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownPrice).BeginInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCost).BeginInit();
+            SuspendLayout();
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(76, 9);
+            label1.Name = "label1";
+            label1.Size = new Size(62, 15);
+            label1.TabIndex = 0;
+            label1.Text = "Название:";
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(73, 38);
+            label2.Name = "label2";
+            label2.Size = new Size(65, 15);
+            label2.TabIndex = 1;
+            label2.Text = "Описание:";
+            // 
+            // label3
+            // 
+            label3.AutoSize = true;
+            label3.Location = new Point(100, 66);
+            label3.Name = "label3";
+            label3.Size = new Size(38, 15);
+            label3.TabIndex = 2;
+            label3.Text = "Цена:";
+            // 
+            // label4
+            // 
+            label4.AutoSize = true;
+            label4.Location = new Point(2, 95);
+            label4.Name = "label4";
+            label4.Size = new Size(136, 15);
+            label4.TabIndex = 3;
+            label4.Text = "Закупочная стоимость:";
+            // 
+            // label5
+            // 
+            label5.AutoSize = true;
+            label5.Location = new Point(43, 125);
+            label5.Name = "label5";
+            label5.Size = new Size(95, 15);
+            label5.TabIndex = 4;
+            label5.Text = "Производитель:";
+            // 
+            // label6
+            // 
+            label6.AutoSize = true;
+            label6.Location = new Point(72, 154);
+            label6.Name = "label6";
+            label6.Size = new Size(66, 15);
+            label6.TabIndex = 5;
+            label6.Text = "Категория:";
+            // 
+            // checkedListBoxAttributes
+            // 
+            checkedListBoxAttributes.Dock = DockStyle.Fill;
+            checkedListBoxAttributes.FormattingEnabled = true;
+            checkedListBoxAttributes.Location = new Point(3, 19);
+            checkedListBoxAttributes.Name = "checkedListBoxAttributes";
+            checkedListBoxAttributes.Size = new Size(296, 148);
+            checkedListBoxAttributes.TabIndex = 6;
+            // 
+            // groupBox1
+            // 
+            groupBox1.Controls.Add(checkedListBoxAttributes);
+            groupBox1.Location = new Point(12, 192);
+            groupBox1.Name = "groupBox1";
+            groupBox1.Size = new Size(302, 170);
+            groupBox1.TabIndex = 7;
+            groupBox1.TabStop = false;
+            groupBox1.Text = "Аттрибуты";
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(12, 368);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(75, 23);
+            buttonCancel.TabIndex = 8;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(236, 368);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(75, 23);
+            buttonSave.TabIndex = 9;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(144, 6);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(167, 23);
+            textBoxName.TabIndex = 10;
+            // 
+            // textBoxDescription
+            // 
+            textBoxDescription.Location = new Point(144, 35);
+            textBoxDescription.Name = "textBoxDescription";
+            textBoxDescription.Size = new Size(167, 23);
+            textBoxDescription.TabIndex = 11;
+            // 
+            // numericUpDownPrice
+            // 
+            numericUpDownPrice.Location = new Point(144, 64);
+            numericUpDownPrice.Maximum = new decimal(new int[] { 1000000, 0, 0, 0 });
+            numericUpDownPrice.Name = "numericUpDownPrice";
+            numericUpDownPrice.Size = new Size(167, 23);
+            numericUpDownPrice.TabIndex = 12;
+            // 
+            // numericUpDownCost
+            // 
+            numericUpDownCost.Location = new Point(144, 93);
+            numericUpDownCost.Maximum = new decimal(new int[] { 1000000, 0, 0, 0 });
+            numericUpDownCost.Name = "numericUpDownCost";
+            numericUpDownCost.Size = new Size(167, 23);
+            numericUpDownCost.TabIndex = 13;
+            // 
+            // comboBoxManufacturer
+            // 
+            comboBoxManufacturer.FormattingEnabled = true;
+            comboBoxManufacturer.Location = new Point(144, 122);
+            comboBoxManufacturer.Name = "comboBoxManufacturer";
+            comboBoxManufacturer.Size = new Size(167, 23);
+            comboBoxManufacturer.TabIndex = 14;
+            // 
+            // comboBoxCategory
+            // 
+            comboBoxCategory.FormattingEnabled = true;
+            comboBoxCategory.Location = new Point(144, 151);
+            comboBoxCategory.Name = "comboBoxCategory";
+            comboBoxCategory.Size = new Size(167, 23);
+            comboBoxCategory.TabIndex = 15;
+            // 
+            // FormProduct
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(326, 403);
+            Controls.Add(comboBoxCategory);
+            Controls.Add(comboBoxManufacturer);
+            Controls.Add(numericUpDownCost);
+            Controls.Add(numericUpDownPrice);
+            Controls.Add(textBoxDescription);
+            Controls.Add(textBoxName);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Controls.Add(groupBox1);
+            Controls.Add(label6);
+            Controls.Add(label5);
+            Controls.Add(label4);
+            Controls.Add(label3);
+            Controls.Add(label2);
+            Controls.Add(label1);
+            Name = "FormProduct";
+            Text = "Товар";
+            groupBox1.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)numericUpDownPrice).EndInit();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCost).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label label1;
+        private Label label2;
+        private Label label3;
+        private Label label4;
+        private Label label5;
+        private Label label6;
+        private CheckedListBox checkedListBoxAttributes;
+        private GroupBox groupBox1;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private TextBox textBoxName;
+        private TextBox textBoxDescription;
+        private NumericUpDown numericUpDownPrice;
+        private NumericUpDown numericUpDownCost;
+        private ComboBox comboBoxManufacturer;
+        private ComboBox comboBoxCategory;
+    }
+}

Project/Forms/FormProduct.cs

@@ -0,0 +1,113 @@
+using Project.Entities;
+using Project.Entities.Enums;
+using Project.Repositories;
+
+namespace Project.Forms;
+
+public partial class FormProduct : Form
+{
+    private readonly IProductRepository _productRepository;
+    private readonly IManufacturerRepository _manufacturerRepository;
+    private int? _productId;
+
+    public int Id
+    {
+        set
+        {
+            try
+            {
+                var product = _productRepository.GetProductById(value);
+                if (product == null)
+                {
+                    throw new InvalidDataException(nameof(product));
+                }
+                foreach (ProductAttributes elem in Enum.GetValues(typeof(ProductAttributes)))
+                {
+                    if ((elem & product.Attributes) != 0)
+                    {
+                        checkedListBoxAttributes.SetItemChecked(checkedListBoxAttributes.Items.IndexOf(elem), true);
+                    }
+                }
+                textBoxName.Text = product.Name;
+                textBoxDescription.Text = product.Description;
+
+                numericUpDownCost.Value = (decimal)product.Cost;
+                numericUpDownPrice.Value = (decimal)product.Price;
+
+                _productId = product.Id;
+
+                comboBoxManufacturer.SelectedItem = _manufacturerRepository.GetManufacturerById(product.ManufacturerId);
+
+                comboBoxCategory.SelectedItem = product.Category;
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при получении данных", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+        }
+    }
+    public FormProduct(IProductRepository productRepository, IManufacturerRepository manufacturerRepository)
+    {
+        _productRepository = productRepository ?? throw new ArgumentNullException(nameof(productRepository));
+        _manufacturerRepository = manufacturerRepository ?? throw new ArgumentNullException(nameof(manufacturerRepository));
+        InitializeComponent();
+
+        foreach (var elem in Enum.GetValues(typeof(ProductAttributes)))
+        {
+            checkedListBoxAttributes.Items.Add(elem);
+        }
+
+        comboBoxCategory.DataSource = Enum.GetValues(typeof(CategoryType));
+
+        comboBoxManufacturer.DataSource = _manufacturerRepository.GetAllManufacturers();
+        comboBoxManufacturer.DisplayMember = "Name";
+        comboBoxManufacturer.ValueMember = "Id";
+    }
+
+    private void buttonCancel_Click(object sender, EventArgs e) => Close();
+
+    private void buttonSave_Click(object sender, EventArgs e)
+    {
+        try
+        {
+            if (string.IsNullOrWhiteSpace(textBoxName.Text) ||
+                string.IsNullOrWhiteSpace(textBoxDescription.Text) ||
+                checkedListBoxAttributes.CheckedItems.Count == 0 || 
+                comboBoxManufacturer.SelectedIndex < 0 ||
+                numericUpDownCost.Value <= 0 ||
+                numericUpDownPrice.Value <= 0 ||
+                comboBoxCategory.SelectedIndex < 0)
+            {
+                throw new Exception("Имеются незаполненные поля");
+            }
+
+            if (_productId.HasValue)
+            {
+                _productRepository.UpdateProduct(AddProduct(_productId.Value));
+            }
+            else
+            {
+                _productRepository.AddProduct(AddProduct(0));
+            }
+
+            Close();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(ex.Message, "Ошибка при сохранении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+        }
+    }
+
+    private Product AddProduct(int id)
+    {
+        ProductAttributes attributes = ProductAttributes.None;
+        foreach (var elem in checkedListBoxAttributes.CheckedItems)
+        {
+            attributes |= (ProductAttributes)elem;
+        }
+        return Product.CreteOperation(id, textBoxName.Text, textBoxDescription.Text, 
+            (float)numericUpDownPrice.Value, (float)numericUpDownCost.Value, 
+            (int)comboBoxManufacturer.SelectedValue!, (CategoryType)comboBoxCategory.SelectedItem!, attributes);
+    }
+}

Project/Forms/FormProduct.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>

Project/Forms/FormProducts.Designer.cs

@@ -0,0 +1,125 @@
+namespace Project.Forms
+{
+    partial class FormProducts
+    {
+        /// <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()
+        {
+            panel1 = new Panel();
+            ButtonDel = new Button();
+            ButtonUpd = new Button();
+            ButtonAdd = new Button();
+            dataGridViewGroups = new DataGridView();
+            panel1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewGroups).BeginInit();
+            SuspendLayout();
+            // 
+            // panel1
+            // 
+            panel1.Controls.Add(ButtonDel);
+            panel1.Controls.Add(ButtonUpd);
+            panel1.Controls.Add(ButtonAdd);
+            panel1.Dock = DockStyle.Right;
+            panel1.Location = new Point(828, 0);
+            panel1.Name = "panel1";
+            panel1.Size = new Size(125, 439);
+            panel1.TabIndex = 0;
+            // 
+            // ButtonDel
+            // 
+            ButtonDel.BackgroundImage = Properties.Resources.Del;
+            ButtonDel.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonDel.Location = new Point(13, 278);
+            ButtonDel.Name = "ButtonDel";
+            ButtonDel.Size = new Size(101, 100);
+            ButtonDel.TabIndex = 3;
+            ButtonDel.UseVisualStyleBackColor = true;
+            ButtonDel.Click += ButtonDel_Click;
+            // 
+            // ButtonUpd
+            // 
+            ButtonUpd.BackgroundImage = Properties.Resources.Upd;
+            ButtonUpd.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonUpd.Location = new Point(13, 172);
+            ButtonUpd.Name = "ButtonUpd";
+            ButtonUpd.Size = new Size(100, 100);
+            ButtonUpd.TabIndex = 2;
+            ButtonUpd.UseVisualStyleBackColor = true;
+            ButtonUpd.Click += ButtonUpd_Click;
+            // 
+            // ButtonAdd
+            // 
+            ButtonAdd.BackgroundImage = Properties.Resources.Add;
+            ButtonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonAdd.Location = new Point(13, 66);
+            ButtonAdd.Name = "ButtonAdd";
+            ButtonAdd.Size = new Size(100, 100);
+            ButtonAdd.TabIndex = 1;
+            ButtonAdd.UseVisualStyleBackColor = true;
+            ButtonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridViewGroups
+            // 
+            dataGridViewGroups.AllowUserToAddRows = false;
+            dataGridViewGroups.AllowUserToDeleteRows = false;
+            dataGridViewGroups.AllowUserToResizeColumns = false;
+            dataGridViewGroups.AllowUserToResizeRows = false;
+            dataGridViewGroups.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewGroups.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewGroups.Dock = DockStyle.Fill;
+            dataGridViewGroups.Location = new Point(0, 0);
+            dataGridViewGroups.MultiSelect = false;
+            dataGridViewGroups.Name = "dataGridViewGroups";
+            dataGridViewGroups.ReadOnly = true;
+            dataGridViewGroups.RowHeadersVisible = false;
+            dataGridViewGroups.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewGroups.Size = new Size(828, 439);
+            dataGridViewGroups.TabIndex = 2;
+            // 
+            // FormProducts
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(953, 439);
+            Controls.Add(dataGridViewGroups);
+            Controls.Add(panel1);
+            Name = "FormProducts";
+            Text = "Товары";
+            Load += FormProducts_Load;
+            panel1.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridViewGroups).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel1;
+        private Button ButtonAdd;
+        private Button ButtonUpd;
+        private Button ButtonDel;
+        private DataGridView dataGridViewGroups;
+    }
+}

Project/Forms/FormProducts.cs

@@ -0,0 +1,99 @@
+using Project.Repositories;
+
+using Unity;
+
+namespace Project.Forms;
+
+public partial class FormProducts : Form
+{
+
+    private readonly IUnityContainer _container;
+    private readonly IProductRepository _productRepository;
+
+    public FormProducts(IUnityContainer container, IProductRepository productRepository)
+    {
+        InitializeComponent();
+        _container = container ?? throw new ArgumentNullException(nameof(container));
+        _productRepository = productRepository ?? throw new ArgumentNullException(nameof(productRepository));
+    }
+
+    private void ButtonAdd_Click(object sender, EventArgs e)
+    {
+        try
+        {
+            _container.Resolve<FormProduct>().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<FormProduct>();
+            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
+        {
+            _productRepository.DeleteProduct(findId);
+            LoadList();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+        }
+    }
+
+    private void LoadList() => dataGridViewGroups.DataSource = _productRepository.GetAllProducts();
+
+    private bool TryGetIdentifierFromSelectedRow(out int id)
+    {
+        id = 0;
+        if (dataGridViewGroups.SelectedRows.Count < 1)
+        {
+            MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            return false;
+        }
+        id = Convert.ToInt32(dataGridViewGroups.SelectedRows[0].Cells["ID"].Value);
+        return true;
+    }
+
+    private void FormProducts_Load(object sender, EventArgs e)
+    {
+        try
+        {
+            LoadList();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(ex.Message, "Ошибка при загрузке",
+            MessageBoxButtons.OK, MessageBoxIcon.Error);
+        }
+    }
+}

Project/Forms/FormProducts.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>

Project/Forms/FormSale.Designer.cs

@@ -0,0 +1,146 @@
+namespace Project.Forms
+{
+    partial class FormSale
+    {
+        /// <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()
+        {
+            label1 = new Label();
+            dateTimePickerDate = new DateTimePicker();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            groupBox1 = new GroupBox();
+            dataGridView = new DataGridView();
+            ColumnProduct = new DataGridViewComboBoxColumn();
+            ColumnQuantity = new DataGridViewTextBoxColumn();
+            groupBox1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            SuspendLayout();
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(12, 15);
+            label1.Name = "label1";
+            label1.Size = new Size(35, 15);
+            label1.TabIndex = 0;
+            label1.Text = "Дата:";
+            // 
+            // dateTimePickerDate
+            // 
+            dateTimePickerDate.Location = new Point(53, 9);
+            dateTimePickerDate.Name = "dateTimePickerDate";
+            dateTimePickerDate.Size = new Size(200, 23);
+            dateTimePickerDate.TabIndex = 1;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(12, 303);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(75, 23);
+            buttonCancel.TabIndex = 2;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(180, 303);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(75, 23);
+            buttonSave.TabIndex = 3;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // groupBox1
+            // 
+            groupBox1.Controls.Add(dataGridView);
+            groupBox1.Location = new Point(12, 67);
+            groupBox1.Name = "groupBox1";
+            groupBox1.Size = new Size(241, 230);
+            groupBox1.TabIndex = 4;
+            groupBox1.TabStop = false;
+            groupBox1.Text = "Товар";
+            // 
+            // dataGridView
+            // 
+            dataGridView.AllowUserToResizeColumns = false;
+            dataGridView.AllowUserToResizeRows = false;
+            dataGridView.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Columns.AddRange(new DataGridViewColumn[] { ColumnProduct, ColumnQuantity });
+            dataGridView.Dock = DockStyle.Fill;
+            dataGridView.Location = new Point(3, 19);
+            dataGridView.MultiSelect = false;
+            dataGridView.Name = "dataGridView";
+            dataGridView.RowHeadersVisible = false;
+            dataGridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridView.Size = new Size(235, 208);
+            dataGridView.TabIndex = 0;
+            // 
+            // ColumnProduct
+            // 
+            ColumnProduct.HeaderText = "Товар";
+            ColumnProduct.Name = "ColumnProduct";
+            // 
+            // ColumnQuantity
+            // 
+            ColumnQuantity.HeaderText = "Количество";
+            ColumnQuantity.Name = "ColumnQuantity";
+            ColumnQuantity.Resizable = DataGridViewTriState.True;
+            ColumnQuantity.SortMode = DataGridViewColumnSortMode.NotSortable;
+            // 
+            // FormSale
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(267, 338);
+            Controls.Add(groupBox1);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Controls.Add(dateTimePickerDate);
+            Controls.Add(label1);
+            Name = "FormSale";
+            Text = "Продажа";
+            groupBox1.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label label1;
+        private DateTimePicker dateTimePickerDate;
+        private Button buttonCancel;
+        private Button buttonSave;
+        private GroupBox groupBox1;
+        private DataGridView dataGridView;
+        private DataGridViewComboBoxColumn ColumnProduct;
+        private DataGridViewTextBoxColumn ColumnQuantity;
+    }
+}

Project/Forms/FormSale.cs

@@ -0,0 +1,60 @@
+using Project.Entities;
+using Project.Repositories;
+
+namespace Project.Forms;
+
+public partial class FormSale : Form
+{
+    private readonly ISaleRepository _saleRepository;
+
+    public FormSale(ISaleRepository saleRepository, IProductRepository productRepository)
+    {
+        _saleRepository = saleRepository ?? throw new ArgumentNullException(nameof(saleRepository));
+
+        InitializeComponent();
+
+        ColumnProduct.DataSource = productRepository.GetAllProducts();
+        ColumnProduct.DisplayMember = "Name";
+        ColumnProduct.ValueMember = "Id";
+    }
+
+    private void buttonSave_Click(object sender, EventArgs e)
+    {
+        try
+        {
+            if (dataGridView.RowCount < 1)
+            {
+                throw new Exception("Имеются незаполненные поля");
+            }
+
+            _saleRepository.AddSale(Sale.CreteOperation(0,
+                dateTimePickerDate.Value.Date,
+                CreateListSaleProductFromDataGrid()));
+
+            Close();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(ex.Message, "Ошибка при сохранении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+        }
+    }
+
+    private void buttonCancel_Click(object sender, EventArgs e) => Close();
+
+    private List<SaleProduct> CreateListSaleProductFromDataGrid()
+    {
+        var list = new List<SaleProduct>();
+        foreach (DataGridViewRow row in dataGridView.Rows)
+        {
+            if (row.Cells["ColumnProduct"].Value == null ||
+            row.Cells["ColumnQuantity"].Value == null)
+            {
+                continue;
+            }
+            list.Add(SaleProduct.CreateOperation(0,
+                Convert.ToInt32(row.Cells["ColumnProduct"].Value),
+                Convert.ToInt32(row.Cells["ColumnQuantity"].Value)));
+        }
+        return list;
+    }
+}

Project/Forms/FormSale.resx

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

Project/Forms/FormSales.Designer.cs

@@ -0,0 +1,111 @@
+namespace Project.Forms
+{
+    partial class FormSales
+    {
+        /// <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()
+        {
+            panel1 = new Panel();
+            ButtonDel = new Button();
+            ButtonAdd = new Button();
+            dataGridViewGroups = new DataGridView();
+            panel1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewGroups).BeginInit();
+            SuspendLayout();
+            // 
+            // panel1
+            // 
+            panel1.Controls.Add(ButtonDel);
+            panel1.Controls.Add(ButtonAdd);
+            panel1.Dock = DockStyle.Right;
+            panel1.Location = new Point(828, 0);
+            panel1.Name = "panel1";
+            panel1.Size = new Size(125, 439);
+            panel1.TabIndex = 0;
+            // 
+            // ButtonDel
+            // 
+            ButtonDel.BackgroundImage = Properties.Resources.Del;
+            ButtonDel.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonDel.Location = new Point(13, 172);
+            ButtonDel.Name = "ButtonDel";
+            ButtonDel.Size = new Size(101, 100);
+            ButtonDel.TabIndex = 3;
+            ButtonDel.UseVisualStyleBackColor = true;
+            ButtonDel.Click += ButtonDel_Click;
+            // 
+            // ButtonAdd
+            // 
+            ButtonAdd.BackgroundImage = Properties.Resources.Add;
+            ButtonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonAdd.Location = new Point(13, 66);
+            ButtonAdd.Name = "ButtonAdd";
+            ButtonAdd.Size = new Size(100, 100);
+            ButtonAdd.TabIndex = 1;
+            ButtonAdd.UseVisualStyleBackColor = true;
+            ButtonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridViewGroups
+            // 
+            dataGridViewGroups.AllowUserToAddRows = false;
+            dataGridViewGroups.AllowUserToDeleteRows = false;
+            dataGridViewGroups.AllowUserToResizeColumns = false;
+            dataGridViewGroups.AllowUserToResizeRows = false;
+            dataGridViewGroups.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewGroups.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewGroups.Dock = DockStyle.Fill;
+            dataGridViewGroups.Location = new Point(0, 0);
+            dataGridViewGroups.MultiSelect = false;
+            dataGridViewGroups.Name = "dataGridViewGroups";
+            dataGridViewGroups.ReadOnly = true;
+            dataGridViewGroups.RowHeadersVisible = false;
+            dataGridViewGroups.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewGroups.Size = new Size(828, 439);
+            dataGridViewGroups.TabIndex = 2;
+            // 
+            // FormSales
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(953, 439);
+            Controls.Add(dataGridViewGroups);
+            Controls.Add(panel1);
+            Name = "FormSales";
+            Text = "Продажи";
+            Load += FormSales_Load;
+            panel1.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridViewGroups).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel1;
+        private Button ButtonAdd;
+        private Button ButtonDel;
+        private DataGridView dataGridViewGroups;
+    }
+}

Project/Forms/FormSales.cs

@@ -0,0 +1,81 @@
+using Project.Repositories;
+
+using Unity;
+
+namespace Project.Forms;
+
+public partial class FormSales : Form
+{
+
+    private readonly IUnityContainer _container;
+    private readonly ISaleRepository _saleRepository;
+
+    public FormSales(IUnityContainer container, ISaleRepository saleRepository)
+    {
+        InitializeComponent();
+        _container = container ?? throw new ArgumentNullException(nameof(container));
+        _saleRepository = saleRepository ?? throw new ArgumentNullException(nameof(saleRepository));
+    }
+
+    private void ButtonAdd_Click(object sender, EventArgs e)
+    {
+        try
+        {
+            _container.Resolve<FormSale>().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
+        {
+            _saleRepository.DeleteSale(findId);
+            LoadList();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+        }
+    }
+
+    private void LoadList() => dataGridViewGroups.DataSource = _saleRepository.GetAllSales();
+
+    private bool TryGetIdentifierFromSelectedRow(out int id)
+    {
+        id = 0;
+        if (dataGridViewGroups.SelectedRows.Count < 1)
+        {
+            MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            return false;
+        }
+        id = Convert.ToInt32(dataGridViewGroups.SelectedRows[0].Cells["ID"].Value);
+        return true;
+    }
+
+    private void FormSales_Load(object sender, EventArgs e)
+    {
+
+        try
+        {
+            LoadList();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(ex.Message, "Ошибка при загрузке",
+            MessageBoxButtons.OK, MessageBoxIcon.Error);
+        }
+    }
+}

Project/Forms/FormSales.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>

Project/Forms/FormWork.Designer.cs

@@ -0,0 +1,142 @@
+namespace Project.Forms
+{
+    partial class FormWork
+    {
+        /// <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()
+        {
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            label2 = new Label();
+            label3 = new Label();
+            comboBoxProduct = new ComboBox();
+            dateTimePickerWork = new DateTimePicker();
+            comboBoxWorkType = new ComboBox();
+            label4 = new Label();
+            SuspendLayout();
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(8, 121);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(75, 23);
+            buttonCancel.TabIndex = 0;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(210, 121);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(75, 23);
+            buttonSave.TabIndex = 1;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(30, 12);
+            label2.Name = "label2";
+            label2.Size = new Size(53, 15);
+            label2.TabIndex = 3;
+            label2.Text = "Продукт";
+            // 
+            // label3
+            // 
+            label3.AutoSize = true;
+            label3.Location = new Point(30, 80);
+            label3.Name = "label3";
+            label3.Size = new Size(32, 15);
+            label3.TabIndex = 4;
+            label3.Text = "Дата";
+            // 
+            // comboBoxProduct
+            // 
+            comboBoxProduct.FormattingEnabled = true;
+            comboBoxProduct.Location = new Point(92, 12);
+            comboBoxProduct.Name = "comboBoxProduct";
+            comboBoxProduct.Size = new Size(179, 23);
+            comboBoxProduct.TabIndex = 8;
+            // 
+            // dateTimePickerWork
+            // 
+            dateTimePickerWork.Location = new Point(71, 74);
+            dateTimePickerWork.Name = "dateTimePickerWork";
+            dateTimePickerWork.Size = new Size(200, 23);
+            dateTimePickerWork.TabIndex = 9;
+            // 
+            // comboBoxWorkType
+            // 
+            comboBoxWorkType.FormattingEnabled = true;
+            comboBoxWorkType.Location = new Point(92, 41);
+            comboBoxWorkType.Name = "comboBoxWorkType";
+            comboBoxWorkType.Size = new Size(179, 23);
+            comboBoxWorkType.TabIndex = 10;
+            // 
+            // label4
+            // 
+            label4.AutoSize = true;
+            label4.Location = new Point(12, 45);
+            label4.Name = "label4";
+            label4.Size = new Size(71, 15);
+            label4.TabIndex = 11;
+            label4.Text = "Вид работы";
+            // 
+            // FormWork
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(307, 167);
+            Controls.Add(label4);
+            Controls.Add(comboBoxWorkType);
+            Controls.Add(dateTimePickerWork);
+            Controls.Add(comboBoxProduct);
+            Controls.Add(label3);
+            Controls.Add(label2);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Name = "FormWork";
+            Text = "Выполненная работа";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Button buttonCancel;
+        private Button buttonSave;
+        private Label label2;
+        private Label label3;
+        private NumericUpDown numericUpDownPrice;
+        private ComboBox comboBoxProduct;
+        private DateTimePicker dateTimePickerWork;
+        private ComboBox comboBoxWorkType;
+        private Label label4;
+    }
+}

Project/Forms/FormWork.cs

@@ -0,0 +1,47 @@
+using Project.Entities;
+using Project.Repositories;
+
+namespace Project.Forms;
+
+public partial class FormWork : Form
+{
+    private readonly IWorkRepository _workRepository;
+   
+    public FormWork(IWorkRepository workRepository, IProductRepository productRepository, IWorkTypeRepository workTypeRepository)
+    {
+        _workRepository = workRepository ??
+            throw new ArgumentNullException(nameof(workRepository));
+        InitializeComponent();
+
+        comboBoxProduct.DataSource = productRepository.GetAllProducts();
+        comboBoxProduct.DisplayMember = "Name";
+        comboBoxProduct.ValueMember = "Id";
+
+        comboBoxWorkType.DataSource = workTypeRepository.GetAllWorkTypes();
+        comboBoxWorkType.DisplayMember = "Name";
+        comboBoxWorkType.ValueMember = "Id";
+    }
+
+    private void buttonSave_Click(object sender, EventArgs e)
+    {
+        try
+        {
+            if (comboBoxProduct.SelectedIndex < 0 || comboBoxWorkType.SelectedIndex < 0)
+            {
+                throw new Exception("Имеются незаполненные поля");
+            }
+
+            _workRepository.AddWork(CreateWork(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 Work CreateWork(int id) => Work.CreateOperation(id, (int)comboBoxProduct.SelectedValue!, (int)comboBoxWorkType.SelectedValue!, dateTimePickerWork.Value.Date);
+}

Project/Forms/FormWork.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>

Project/Forms/FormWorkType.Designer.cs

@@ -0,0 +1,142 @@
+namespace Project.Forms
+{
+    partial class FormWorkType
+    {
+        /// <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()
+        {
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            label1 = new Label();
+            label2 = new Label();
+            label3 = new Label();
+            textBoxName = new TextBox();
+            textBoxDescription = new TextBox();
+            numericUpDownPrice = new NumericUpDown();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownPrice).BeginInit();
+            SuspendLayout();
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(31, 116);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(75, 23);
+            buttonCancel.TabIndex = 0;
+            buttonCancel.Text = "Отменить";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += buttonCancel_Click;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(206, 116);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(75, 23);
+            buttonSave.TabIndex = 1;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(31, 15);
+            label1.Name = "label1";
+            label1.Size = new Size(62, 15);
+            label1.TabIndex = 2;
+            label1.Text = "Название:";
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(31, 48);
+            label2.Name = "label2";
+            label2.Size = new Size(65, 15);
+            label2.TabIndex = 3;
+            label2.Text = "Описание:";
+            // 
+            // label3
+            // 
+            label3.AutoSize = true;
+            label3.Location = new Point(58, 71);
+            label3.Name = "label3";
+            label3.Size = new Size(38, 15);
+            label3.TabIndex = 4;
+            label3.Text = "Цена:";
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(102, 12);
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(179, 23);
+            textBoxName.TabIndex = 5;
+            // 
+            // textBoxDescription
+            // 
+            textBoxDescription.Location = new Point(102, 40);
+            textBoxDescription.Name = "textBoxDescription";
+            textBoxDescription.Size = new Size(179, 23);
+            textBoxDescription.TabIndex = 6;
+            // 
+            // numericUpDownPrice
+            // 
+            numericUpDownPrice.Location = new Point(102, 69);
+            numericUpDownPrice.Maximum = new decimal(new int[] { 100000, 0, 0, 0 });
+            numericUpDownPrice.Name = "numericUpDownPrice";
+            numericUpDownPrice.Size = new Size(179, 23);
+            numericUpDownPrice.TabIndex = 7;
+            // 
+            // FormWork
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(307, 160);
+            Controls.Add(numericUpDownPrice);
+            Controls.Add(textBoxDescription);
+            Controls.Add(textBoxName);
+            Controls.Add(label3);
+            Controls.Add(label2);
+            Controls.Add(label1);
+            Controls.Add(buttonSave);
+            Controls.Add(buttonCancel);
+            Name = "FormWork";
+            Text = "Вид работы";
+            ((System.ComponentModel.ISupportInitialize)numericUpDownPrice).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Button buttonCancel;
+        private Button buttonSave;
+        private Label label1;
+        private Label label2;
+        private Label label3;
+        private TextBox textBoxName;
+        private TextBox textBoxDescription;
+        private NumericUpDown numericUpDownPrice;
+    }
+}

Project/Forms/FormWorkType.cs

@@ -0,0 +1,70 @@
+using Project.Entities;
+using Project.Repositories;
+
+namespace Project.Forms;
+
+public partial class FormWorkType : Form
+{
+    private readonly IWorkTypeRepository _workRepository;
+    private int? _workId;
+
+    public int Id
+    {
+        set
+        {
+            try
+            {
+                var work = _workRepository.GetWorkTypeById(value);
+                if (work == null)
+                {
+                    throw new InvalidDataException(nameof(work));
+                }
+                textBoxName.Text = work.Name;
+                textBoxDescription.Text = work.Description;
+                numericUpDownPrice.Value = (decimal)work.Price;
+                _workId = value;
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при получении данных", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+        }
+    }
+    public FormWorkType(IWorkTypeRepository workRepository)
+    {
+        _workRepository = workRepository ??
+            throw new ArgumentNullException(nameof(workRepository));
+        InitializeComponent();
+    }
+
+    private void buttonSave_Click(object sender, EventArgs e)
+    {
+        try
+        {
+            if (string.IsNullOrWhiteSpace(textBoxName.Text) || string.IsNullOrEmpty(textBoxDescription.Text) || numericUpDownPrice.Value <= 0)
+            {
+                throw new Exception("Имеются незаполненные поля");
+            }
+
+            if (_workId.HasValue)
+            {
+                _workRepository.UpdateWorkType(CreateWork(_workId.Value));
+            }
+            else
+            {
+                _workRepository.AddWorkType(CreateWork(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 WorkType CreateWork(int id) => WorkType.CreateOperation(id, textBoxName.Text, textBoxDescription.Text, (float)numericUpDownPrice.Value);
+}

Project/Forms/FormWorkType.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>

Project/Forms/FormWorkTypes.Designer.cs

@@ -0,0 +1,125 @@
+namespace Project.Forms
+{
+    partial class FormWorkTypes
+    {
+        /// <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()
+        {
+            panel1 = new Panel();
+            ButtonDel = new Button();
+            ButtonUpd = new Button();
+            ButtonAdd = new Button();
+            dataGridViewGroups = new DataGridView();
+            panel1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewGroups).BeginInit();
+            SuspendLayout();
+            // 
+            // panel1
+            // 
+            panel1.Controls.Add(ButtonDel);
+            panel1.Controls.Add(ButtonUpd);
+            panel1.Controls.Add(ButtonAdd);
+            panel1.Dock = DockStyle.Right;
+            panel1.Location = new Point(828, 0);
+            panel1.Name = "panel1";
+            panel1.Size = new Size(125, 439);
+            panel1.TabIndex = 0;
+            // 
+            // ButtonDel
+            // 
+            ButtonDel.BackgroundImage = Properties.Resources.Del;
+            ButtonDel.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonDel.Location = new Point(13, 278);
+            ButtonDel.Name = "ButtonDel";
+            ButtonDel.Size = new Size(101, 100);
+            ButtonDel.TabIndex = 3;
+            ButtonDel.UseVisualStyleBackColor = true;
+            ButtonDel.Click += ButtonDel_Click;
+            // 
+            // ButtonUpd
+            // 
+            ButtonUpd.BackgroundImage = Properties.Resources.Upd;
+            ButtonUpd.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonUpd.Location = new Point(13, 172);
+            ButtonUpd.Name = "ButtonUpd";
+            ButtonUpd.Size = new Size(100, 100);
+            ButtonUpd.TabIndex = 2;
+            ButtonUpd.UseVisualStyleBackColor = true;
+            ButtonUpd.Click += ButtonUpd_Click;
+            // 
+            // ButtonAdd
+            // 
+            ButtonAdd.BackgroundImage = Properties.Resources.Add;
+            ButtonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonAdd.Location = new Point(13, 66);
+            ButtonAdd.Name = "ButtonAdd";
+            ButtonAdd.Size = new Size(100, 100);
+            ButtonAdd.TabIndex = 1;
+            ButtonAdd.UseVisualStyleBackColor = true;
+            ButtonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridViewGroups
+            // 
+            dataGridViewGroups.AllowUserToAddRows = false;
+            dataGridViewGroups.AllowUserToDeleteRows = false;
+            dataGridViewGroups.AllowUserToResizeColumns = false;
+            dataGridViewGroups.AllowUserToResizeRows = false;
+            dataGridViewGroups.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewGroups.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewGroups.Dock = DockStyle.Fill;
+            dataGridViewGroups.Location = new Point(0, 0);
+            dataGridViewGroups.MultiSelect = false;
+            dataGridViewGroups.Name = "dataGridViewGroups";
+            dataGridViewGroups.ReadOnly = true;
+            dataGridViewGroups.RowHeadersVisible = false;
+            dataGridViewGroups.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewGroups.Size = new Size(828, 439);
+            dataGridViewGroups.TabIndex = 2;
+            // 
+            // FormWorks
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(953, 439);
+            Controls.Add(dataGridViewGroups);
+            Controls.Add(panel1);
+            Name = "FormWorks";
+            Text = "Виды работ";
+            Load += FormWorks_Load;
+            panel1.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridViewGroups).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel1;
+        private Button ButtonAdd;
+        private Button ButtonUpd;
+        private Button ButtonDel;
+        private DataGridView dataGridViewGroups;
+    }
+}

Project/Forms/FormWorkTypes.cs

@@ -0,0 +1,99 @@
+using Project.Repositories;
+
+using Unity;
+
+namespace Project.Forms;
+
+public partial class FormWorkTypes : Form
+{
+
+    private readonly IUnityContainer _container;
+    private readonly IWorkTypeRepository _workTypeRepository;
+
+    public FormWorkTypes(IUnityContainer container, IWorkTypeRepository workTypeRepository)
+    {
+        InitializeComponent();
+        _container = container ?? throw new ArgumentNullException(nameof(container));
+        _workTypeRepository = workTypeRepository ?? throw new ArgumentNullException(nameof(workTypeRepository));
+    }
+
+    private void ButtonAdd_Click(object sender, EventArgs e)
+    {
+        try
+        {
+            _container.Resolve<FormWorkType>().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<FormWorkType>();
+            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
+        {
+            _workTypeRepository.DeleteWorkType(findId);
+            LoadList();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+        }
+    }
+
+    private void LoadList() => dataGridViewGroups.DataSource = _workTypeRepository.GetAllWorkTypes();
+
+    private bool TryGetIdentifierFromSelectedRow(out int id)
+    {
+        id = 0;
+        if (dataGridViewGroups.SelectedRows.Count < 1)
+        {
+            MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            return false;
+        }
+        id = Convert.ToInt32(dataGridViewGroups.SelectedRows[0].Cells["ID"].Value);
+        return true;
+    }
+
+    private void FormWorks_Load(object sender, EventArgs e)
+    {
+        try
+        {
+            LoadList();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(ex.Message, "Ошибка при загрузке",
+            MessageBoxButtons.OK, MessageBoxIcon.Error);
+        }
+    }
+}

Project/Forms/FormWorkTypes.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>

Project/Forms/FormWorks.Designer.cs

@@ -0,0 +1,111 @@
+namespace Project.Forms
+{
+    partial class FormWorks
+    {
+        /// <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()
+        {
+            panel1 = new Panel();
+            ButtonDel = new Button();
+            ButtonAdd = new Button();
+            dataGridViewGroups = new DataGridView();
+            panel1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewGroups).BeginInit();
+            SuspendLayout();
+            // 
+            // panel1
+            // 
+            panel1.Controls.Add(ButtonDel);
+            panel1.Controls.Add(ButtonAdd);
+            panel1.Dock = DockStyle.Right;
+            panel1.Location = new Point(828, 0);
+            panel1.Name = "panel1";
+            panel1.Size = new Size(125, 439);
+            panel1.TabIndex = 0;
+            // 
+            // ButtonDel
+            // 
+            ButtonDel.BackgroundImage = Properties.Resources.Del;
+            ButtonDel.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonDel.Location = new Point(13, 172);
+            ButtonDel.Name = "ButtonDel";
+            ButtonDel.Size = new Size(101, 100);
+            ButtonDel.TabIndex = 3;
+            ButtonDel.UseVisualStyleBackColor = true;
+            ButtonDel.Click += ButtonDel_Click;
+            // 
+            // ButtonAdd
+            // 
+            ButtonAdd.BackgroundImage = Properties.Resources.Add;
+            ButtonAdd.BackgroundImageLayout = ImageLayout.Stretch;
+            ButtonAdd.Location = new Point(13, 66);
+            ButtonAdd.Name = "ButtonAdd";
+            ButtonAdd.Size = new Size(100, 100);
+            ButtonAdd.TabIndex = 1;
+            ButtonAdd.UseVisualStyleBackColor = true;
+            ButtonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridViewGroups
+            // 
+            dataGridViewGroups.AllowUserToAddRows = false;
+            dataGridViewGroups.AllowUserToDeleteRows = false;
+            dataGridViewGroups.AllowUserToResizeColumns = false;
+            dataGridViewGroups.AllowUserToResizeRows = false;
+            dataGridViewGroups.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewGroups.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewGroups.Dock = DockStyle.Fill;
+            dataGridViewGroups.Location = new Point(0, 0);
+            dataGridViewGroups.MultiSelect = false;
+            dataGridViewGroups.Name = "dataGridViewGroups";
+            dataGridViewGroups.ReadOnly = true;
+            dataGridViewGroups.RowHeadersVisible = false;
+            dataGridViewGroups.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewGroups.Size = new Size(828, 439);
+            dataGridViewGroups.TabIndex = 2;
+            // 
+            // FormWorks
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(953, 439);
+            Controls.Add(dataGridViewGroups);
+            Controls.Add(panel1);
+            Name = "FormWorks";
+            Text = "Выполненные работы";
+            Load += FormWorks_Load;
+            panel1.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridViewGroups).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel1;
+        private Button ButtonAdd;
+        private Button ButtonDel;
+        private DataGridView dataGridViewGroups;
+    }
+}

Project/Forms/FormWorks.cs

@@ -0,0 +1,80 @@
+using Project.Repositories;
+
+using Unity;
+
+namespace Project.Forms;
+
+public partial class FormWorks : Form
+{
+
+    private readonly IUnityContainer _container;
+    private readonly IWorkRepository _workRepository;
+
+    public FormWorks(IUnityContainer container, IWorkRepository workRepository)
+    {
+        InitializeComponent();
+        _container = container ?? throw new ArgumentNullException(nameof(container));
+        _workRepository = workRepository ?? throw new ArgumentNullException(nameof(workRepository));
+    }
+
+    private void ButtonAdd_Click(object sender, EventArgs e)
+    {
+        try
+        {
+            _container.Resolve<FormWork>().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
+        {
+            _workRepository.DeleteWork(findId);
+            LoadList();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(ex.Message, "Ошибка при удалении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+        }
+    }
+
+    private void LoadList() => dataGridViewGroups.DataSource = _workRepository.GetAllWorks();
+
+    private bool TryGetIdentifierFromSelectedRow(out int id)
+    {
+        id = 0;
+        if (dataGridViewGroups.SelectedRows.Count < 1)
+        {
+            MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            return false;
+        }
+        id = Convert.ToInt32(dataGridViewGroups.SelectedRows[0].Cells["ID"].Value);
+        return true;
+    }
+
+    private void FormWorks_Load(object sender, EventArgs e)
+    {
+        try
+        {
+            LoadList();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(ex.Message, "Ошибка при загрузке",
+            MessageBoxButtons.OK, MessageBoxIcon.Error);
+        }
+    }
+}

Project/Forms/FormWorks.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>

Project/Program.cs

@@ -0,0 +1,51 @@
+using Unity.Lifetime;
+using Unity.Microsoft.Logging;
+using Unity;
+using Project.Repositories;
+using Project.Repositories.Implementations;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+using Serilog;
+
+namespace Project
+{
+    internal static class Program
+    {
+        /// <summary>
+        ///  The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            // To customize application configuration such as set high DPI settings or default font,
+            // see https://aka.ms/applicationconfiguration.
+            ApplicationConfiguration.Initialize();
+            Application.Run(CreateContainer().Resolve<Form1>());
+        }
+
+        private static IUnityContainer CreateContainer()
+        {
+            var container = new UnityContainer();
+            container.AddExtension(new LoggingExtension(CreateLoggerFactory()));
+            container.RegisterType<IManufacturerRepository, ManufacturerRepository>();
+            container.RegisterType<IProductRepository, ProductRepository>();
+            container.RegisterType<ISaleRepository, SaleRepository>();
+            container.RegisterType<IWorkTypeRepository, WorkTypeRepository>();
+            container.RegisterType<IWorkRepository, WorkRepository>();
+            container.RegisterType<IConnectionString, ConnectionString>();
+            return container;
+        }
+
+        private static LoggerFactory CreateLoggerFactory()
+        {
+            var loggerFactory = new LoggerFactory();
+            loggerFactory.AddSerilog(new LoggerConfiguration()
+                .ReadFrom.Configuration(new ConfigurationBuilder()
+                .SetBasePath(Directory.GetCurrentDirectory())
+                .AddJsonFile("appsettings.json")
+                .Build())
+                .CreateLogger());
+            return loggerFactory;
+        }
+    }
+}

Project/Project.csproj

@@ -0,0 +1,50 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net8.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWindowsForms>true</UseWindowsForms>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Dapper" Version="2.1.35" />
+    <PackageReference Include="Microsoft.Extensions.Configuration" Version="9.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="9.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="9.0.0" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+    <PackageReference Include="Npgsql" Version="9.0.1" />
+    <PackageReference Include="Serilog" Version="4.1.0" />
+    <PackageReference Include="Serilog.Extensions.Logging" Version="8.0.0" />
+    <PackageReference Include="Serilog.Settings.Configuration" Version="8.0.4" />
+    <PackageReference Include="Serilog.Sinks.File" Version="6.0.0" />
+    <PackageReference Include="Unity" Version="5.11.10" />
+    <PackageReference Include="Unity.Microsoft.Logging" Version="5.11.1" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Compile Update="Forms\FormSales.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Update="Forms\FormWorkTypes.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Update="Forms\FormProducts.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <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>PublicResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+    </EmbeddedResource>
+  </ItemGroup>
+
+</Project>

Project/Properties/Resources.Designer.cs

@@ -0,0 +1,93 @@
+//------------------------------------------------------------------------------
+// <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 Project.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()]
+    public 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)]
+        public static global::System.Resources.ResourceManager ResourceManager {
+            get {
+                if (object.ReferenceEquals(resourceMan, null)) {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("Project.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)]
+        public static global::System.Globalization.CultureInfo Culture {
+            get {
+                return resourceCulture;
+            }
+            set {
+                resourceCulture = value;
+            }
+        }
+        
+        /// <summary>
+        ///   Поиск локализованного ресурса типа System.Drawing.Bitmap.
+        /// </summary>
+        public static System.Drawing.Bitmap Add {
+            get {
+                object obj = ResourceManager.GetObject("Add", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        /// <summary>
+        ///   Поиск локализованного ресурса типа System.Drawing.Bitmap.
+        /// </summary>
+        public static System.Drawing.Bitmap Del {
+            get {
+                object obj = ResourceManager.GetObject("Del", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+        
+        /// <summary>
+        ///   Поиск локализованного ресурса типа System.Drawing.Bitmap.
+        /// </summary>
+        public static System.Drawing.Bitmap Upd {
+            get {
+                object obj = ResourceManager.GetObject("Upd", resourceCulture);
+                return ((System.Drawing.Bitmap)(obj));
+            }
+        }
+    }
+}

Project/Properties/Resources.resx

@@ -0,0 +1,130 @@
+<?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="Add" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\Add.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+  <data name="Del" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\Del.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+  <data name="Upd" type="System.Resources.ResXFileRef, System.Windows.Forms">
+    <value>..\Resources\Upd.png;System.Drawing.Bitmap, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a</value>
+  </data>
+</root>

Project/Repositories/IConnectionString.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Project.Repositories;
+
+public interface IConnectionString
+{
+    public string ConnectionString { get; }
+}

Project/Repositories/IManufacturerRepository.cs

@@ -0,0 +1,12 @@
+using Project.Entities;
+
+namespace Project.Repositories;
+
+public interface IManufacturerRepository
+{
+    IEnumerable<Manufacturer> GetAllManufacturers();
+    Manufacturer GetManufacturerById(int id);
+    void AddManufacturer(Manufacturer manufacturer);
+    void UpdateManufacturer(Manufacturer manufacturer);
+    void DeleteManufacturer(int id);
+}

Project/Repositories/IProductRepository.cs

@@ -0,0 +1,12 @@
+using Project.Entities;
+
+namespace Project.Repositories;
+
+public interface IProductRepository
+{
+    IEnumerable<Product> GetAllProducts();
+    Product GetProductById(int id);
+    void AddProduct(Product product);
+    void UpdateProduct(Product product);
+    void DeleteProduct(int id);
+}

Project/Repositories/ISaleRepository.cs

@@ -0,0 +1,10 @@
+using Project.Entities;
+
+namespace Project.Repositories;
+
+public interface ISaleRepository
+{
+    IEnumerable<Sale> GetAllSales();
+    void AddSale(Sale sale);
+    void DeleteSale(int id);
+}

Project/Repositories/IWorkRepository.cs

@@ -0,0 +1,10 @@
+using Project.Entities;
+
+namespace Project.Repositories;
+
+public interface IWorkRepository
+{
+    IEnumerable<Work> GetAllWorks();
+    void AddWork(Work work);
+    void DeleteWork(int id);
+}

Project/Repositories/IWorkTypeRepository.cs

@@ -0,0 +1,12 @@
+using Project.Entities;
+
+namespace Project.Repositories;
+
+public interface IWorkTypeRepository
+{
+    IEnumerable<WorkType> GetAllWorkTypes();
+    WorkType GetWorkTypeById(int id);
+    void AddWorkType(WorkType workType);
+    void UpdateWorkType(WorkType workType);
+    void DeleteWorkType(int id);
+}

Project/Repositories/Implementations/ConnectionString.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Project.Repositories.Implementations;
+
+public class ConnectionString : IConnectionString
+{
+    string IConnectionString.ConnectionString => "Host=localhost;Port=5432;Username=postgres;Password=030405;Database=OTP_computers";
+}
+

Project/Repositories/Implementations/ManufacturerRepository.cs

@@ -0,0 +1,121 @@
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using Project.Entities;
+
+namespace Project.Repositories.Implementations;
+
+public class ManufacturerRepository : IManufacturerRepository
+{
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<ManufacturerRepository> _logger;
+
+    public ManufacturerRepository(IConnectionString connectionString, ILogger<ManufacturerRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
+
+    public void AddManufacturer(Manufacturer manufacturer)
+    {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(manufacturer));
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"
+            INSERT INTO Manufacturer (Name)
+            VALUES (@Name)";
+            connection.Execute(queryInsert, manufacturer);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
+    }
+
+    public void DeleteManufacturer(int id)
+    {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"
+                DELETE FROM Manufacturer
+                WHERE Id=@id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
+    }
+
+    public IEnumerable<Manufacturer> GetAllManufacturers()
+    {
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM Manufacturer";
+            var manufacturers = connection.Query<Manufacturer>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+            JsonConvert.SerializeObject(manufacturers));
+            return manufacturers;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
+    }
+
+    public Manufacturer GetManufacturerById(int id)
+    {
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = @"
+                SELECT * FROM Manufacturer
+                WHERE Id=@id";
+            var manufacturer = connection.QueryFirst<Manufacturer>(querySelect, new { id });
+            _logger.LogDebug("Найденный объект: {json}",
+                JsonConvert.SerializeObject(manufacturer));
+            return manufacturer;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
+    }
+
+    public void UpdateManufacturer(Manufacturer manufacturer)
+    {
+        _logger.LogInformation("Редактирование объекта");
+        _logger.LogDebug("Объект: {json}",
+            JsonConvert.SerializeObject(manufacturer));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryUpdate = @"
+                UPDATE Manufacturer
+                SET
+                Name=@Name
+                WHERE Id=@Id";
+            connection.Execute(queryUpdate, manufacturer);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при редактировании объекта");
+            throw;
+        }
+    }
+}

Project/Repositories/Implementations/ProductRepository.cs

@@ -0,0 +1,128 @@
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using Project.Entities;
+using System.Diagnostics.Contracts;
+
+namespace Project.Repositories.Implementations;
+
+public class ProductRepository : IProductRepository
+{
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<ProductRepository> _logger;
+
+    public ProductRepository(IConnectionString connectionString, ILogger<ProductRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
+
+    public void AddProduct(Product product)
+    {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(product));
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"
+                INSERT INTO Product (Name, Description, Price, Cost, ManufacturerId, Category, Attributes)
+                VALUES (@Name, @Description, @Price, @Cost, @ManufacturerId, @Category, @Attributes)";
+            connection.Execute(queryInsert, product);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
+    }
+
+    public void DeleteProduct(int id)
+    {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"
+                DELETE FROM Product
+                WHERE Id=@id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
+    }
+
+    public IEnumerable<Product> GetAllProducts()
+    {
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM Product";
+            var products = connection.Query<Product>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+            JsonConvert.SerializeObject(products));
+            return products;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
+    }
+
+    public Product GetProductById(int id)
+    {
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = @"
+                SELECT * FROM Product
+                WHERE Id=@id";
+            var product = connection.QueryFirst<Product>(querySelect, new { id });
+            _logger.LogDebug("Найденный объект: {json}",
+                JsonConvert.SerializeObject(product));
+            return product;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
+    }
+
+    public void UpdateProduct(Product product)
+    {
+        _logger.LogInformation("Редактирование объекта");
+        _logger.LogDebug("Объект: {json}",
+            JsonConvert.SerializeObject(product));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryUpdate = @"
+                UPDATE Product
+                SET
+                Name=@Name,
+                Description=@Description,
+                Price=@Price,
+                Cost=@Cost,
+                ManufacturerId=@ManufacturerId,
+                Category=@Category,
+                Attributes=@Attributes
+                WHERE Id=@Id";
+            connection.Execute(queryUpdate, product);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при редактировании объекта");
+            throw;
+        }
+    }
+}

Project/Repositories/Implementations/SaleRepository.cs

@@ -0,0 +1,104 @@
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using Project.Entities;
+
+namespace Project.Repositories.Implementations;
+
+public class SaleRepository : ISaleRepository
+{
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<SaleRepository> _logger;
+
+    public SaleRepository(IConnectionString connectionString, ILogger<SaleRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
+
+    public void AddSale(Sale sale)
+    {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}",
+        JsonConvert.SerializeObject(sale));
+        try
+        {
+            using var connection = new
+            NpgsqlConnection(_connectionString.ConnectionString);
+            connection.Open();
+            using var transaction = connection.BeginTransaction();
+            var queryInsert = @"
+                INSERT INTO Sale (Date)
+                VALUES (@Date);
+                SELECT MAX(Id) FROM Sale";
+            var saleId =
+            connection.QueryFirst<int>(queryInsert, sale, transaction);
+            var querySubInsert = @"
+                INSERT INTO SaleProduct (ProductId, Quantity, SaleId)
+                VALUES (@ProductId, @Quantity, @SaleId)";
+            foreach (var elem in sale.SaleProducts)
+            {
+                connection.Execute(querySubInsert, new
+                {
+                    elem.ProductId,
+                    elem.Quantity,
+                    saleId,
+                }, transaction);
+            }
+            transaction.Commit();
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
+    }
+
+    public void DeleteSale(int id)
+    {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            connection.Open();
+            using var transaction = connection.BeginTransaction();
+            var queryDeleteSub = @"
+            DELETE FROM SaleProduct
+            WHERE SaleId = @id";
+            connection.Execute(queryDeleteSub, new { id }, transaction);
+
+            var queryDelete = @"
+            DELETE FROM Sale
+            WHERE Id = @id";
+            connection.Execute(queryDelete, new { id }, transaction);
+
+            transaction.Commit();
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
+    }
+
+    public IEnumerable<Sale> GetAllSales()
+    {
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM Sale";
+            var sales = connection.Query<Sale>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+            JsonConvert.SerializeObject(sales));
+            return sales;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
+    }
+}

Project/Repositories/Implementations/WorkRepository.cs

@@ -0,0 +1,77 @@
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using Project.Entities;
+
+namespace Project.Repositories.Implementations;
+
+public class WorkRepository : IWorkRepository
+{
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<WorkRepository> _logger;
+
+    public WorkRepository(IConnectionString connectionString, ILogger<WorkRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
+
+    public void AddWork(Work work)
+    {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(work));
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"
+            INSERT INTO Work (ProductId, WorkTypeID, Date)
+            VALUES (@ProductId, @WorkTypeID, @Date)";
+            connection.Execute(queryInsert, work);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
+    }
+
+    public void DeleteWork(int id)
+    {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"
+                DELETE FROM Work
+                WHERE Id=@id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
+    }
+
+    public IEnumerable<Work> GetAllWorks()
+    {
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM Work";
+            var works = connection.Query<Work>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+            JsonConvert.SerializeObject(works));
+            return works;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
+    }
+}

Project/Repositories/Implementations/WorkTypeRepository.cs

@@ -0,0 +1,123 @@
+using Dapper;
+using Microsoft.Extensions.Logging;
+using Newtonsoft.Json;
+using Npgsql;
+using Project.Entities;
+
+namespace Project.Repositories.Implementations;
+
+public class WorkTypeRepository : IWorkTypeRepository
+{
+    private readonly IConnectionString _connectionString;
+    private readonly ILogger<WorkTypeRepository> _logger;
+
+    public WorkTypeRepository(IConnectionString connectionString, ILogger<WorkTypeRepository> logger)
+    {
+        _connectionString = connectionString;
+        _logger = logger;
+    }
+
+    public void AddWorkType(WorkType workType)
+    {
+        _logger.LogInformation("Добавление объекта");
+        _logger.LogDebug("Объект: {json}", JsonConvert.SerializeObject(workType));
+
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryInsert = @"
+            INSERT INTO WorkType (Name, Description, Price)
+            VALUES (@Name, @Description, @Price)";
+            connection.Execute(queryInsert, workType);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при добавлении объекта");
+            throw;
+        }
+    }
+
+    public void DeleteWorkType(int id)
+    {
+        _logger.LogInformation("Удаление объекта");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryDelete = @"
+                DELETE FROM WorkType
+                WHERE Id=@id";
+            connection.Execute(queryDelete, new { id });
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при удалении объекта");
+            throw;
+        }
+    }
+
+    public IEnumerable<WorkType> GetAllWorkTypes()
+    {
+        _logger.LogInformation("Получение всех объектов");
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = "SELECT * FROM WorkType";
+            var workTypes = connection.Query<WorkType>(querySelect);
+            _logger.LogDebug("Полученные объекты: {json}",
+            JsonConvert.SerializeObject(workTypes));
+            return workTypes;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при чтении объектов");
+            throw;
+        }
+    }
+
+    public WorkType GetWorkTypeById(int id)
+    {
+        _logger.LogInformation("Получение объекта по идентификатору");
+        _logger.LogDebug("Объект: {id}", id);
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var querySelect = @"
+                SELECT * FROM WorkType
+                WHERE Id=@id";
+            var work = connection.QueryFirst<WorkType>(querySelect, new { id });
+            _logger.LogDebug("Найденный объект: {json}",
+                JsonConvert.SerializeObject(work));
+            return work;
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при поиске объекта");
+            throw;
+        }
+    }
+
+    public void UpdateWorkType(WorkType workType)
+    {
+        _logger.LogInformation("Редактирование объекта");
+        _logger.LogDebug("Объект: {json}",
+            JsonConvert.SerializeObject(workType));
+        try
+        {
+            using var connection = new NpgsqlConnection(_connectionString.ConnectionString);
+            var queryUpdate = @"
+                UPDATE WorkType
+                SET
+                    Name=@Name,
+                    Description=@Description,
+                    Price=@Price
+                WHERE Id=@Id";
+            connection.Execute(queryUpdate, workType);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Ошибка при редактировании объекта");
+            throw;
+        }
+    }
+}

Project/appsettings.json

@@ -0,0 +1,15 @@
+{
+  "Serilog": {
+    "Using": [ "Serilog.Sinks.File" ],
+    "MinimumLevel": "Debug",
+    "WriteTo": [
+      {
+        "Name": "File",
+        "Args": {
+          "path": "Logs/log.txt",
+          "rollingInterval": "Day"
+        }
+      }
+    ]
+  }
+}