помогите

DatabaseImplement/Implements/SupplyStorage.cs

@@ -7,6 +7,7 @@ using Microsoft.EntityFrameworkCore;
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
@@ -115,7 +116,14 @@ namespace DatabaseImplement.Implements
                 return null;
             }
             context.Supplies.Add(newProduct);
+            try
+            {
                 context.SaveChanges();
+            }
+            catch (Exception ex) 
+            {
+                Debug.WriteLine(ex);
+            }
             return newProduct.GetViewModel;
         }
 

DatabaseImplement/Models/Supplier.cs

@@ -81,6 +81,7 @@ namespace DatabaseImplement.Models
         }
         public void UpdateProducts(Database context, SupplierBindingModel model)
         {
+            var test = context.SupplierProducts.ToList();
             var supplierProducts = context.SupplierProducts.Where(rec => rec.SupplierId == model.Id).ToList();
             if (supplierProducts != null && supplierProducts.Count > model.AvailibleProducts.Count)
             {

DatabaseImplement/Models/Supply.cs

@@ -59,7 +59,8 @@ namespace DatabaseImplement.Models
                 {
                     Product = context.Products.First(y => y.Id == x.Key),
                     Count = x.Value.Item2
-                }).ToList()
+                }).ToList(),
+                Status = SupplyStatus.Pending,
             };
         }
         public void Update(SupplyBindingModel model)

WinFormsApp/FormMain.Designer.cs

@@ -48,12 +48,13 @@
             // 
             // buttonCreateSupply
             // 
-            buttonCreateSupply.Location = new Point(706, 12);
+            buttonCreateSupply.Location = new Point(706, 24);
             buttonCreateSupply.Name = "buttonCreateSupply";
             buttonCreateSupply.Size = new Size(154, 23);
             buttonCreateSupply.TabIndex = 1;
             buttonCreateSupply.Text = "Оформить поставку";
             buttonCreateSupply.UseVisualStyleBackColor = true;
+            buttonCreateSupply.Click += buttonCreateSupply_Click;
             // 
             // menuStrip1
             // 

WinFormsApp/FormMain.cs

@@ -68,5 +68,14 @@ namespace WinFormsApp
                 form.ShowDialog();
             }
         }
+
+        private void buttonCreateSupply_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormSupply));
+            if (service is FormSupply form)
+            {
+                form.ShowDialog();
+            }
+        }
     }
 }

WinFormsApp/FormSuppliers.cs

@@ -57,7 +57,7 @@ namespace WinFormsApp
             dataGridViewProducts.Rows.Clear();
             foreach (var pc in _supplierProducts)
             {
-                dataGridViewProducts.Rows.Add(new object[] { pc.Key, pc.Value.Item1.Name, pc.Value.Item2 });
+                dataGridViewProducts.Rows.Add(new object[] { pc.Value.Item1.Id, pc.Value.Item1.Name, pc.Value.Item2 });
             }
         }
 

WinFormsApp/FormSupply.Designer.cs

@@ -0,0 +1,210 @@
+namespace WinFormsApp
+{
+    partial class FormSupply
+    {
+        /// <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()
+        {
+            textBoxName = new TextBox();
+            dataGridView = new DataGridView();
+            ProductId = new DataGridViewTextBoxColumn();
+            ProductName = new DataGridViewTextBoxColumn();
+            ProductAmount = new DataGridViewTextBoxColumn();
+            groupBoxProducts = new GroupBox();
+            buttonDeleteProduct = new Button();
+            buttonUpdateProduct = new Button();
+            buttonAddProduct = new Button();
+            label1 = new Label();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            textBoxPrice = new TextBox();
+            comboBoxSupplier = new ComboBox();
+            ((System.ComponentModel.ISupportInitialize)dataGridView).BeginInit();
+            groupBoxProducts.SuspendLayout();
+            SuspendLayout();
+            // 
+            // textBoxName
+            // 
+            textBoxName.Location = new Point(18, 41);
+            textBoxName.Multiline = true;
+            textBoxName.Name = "textBoxName";
+            textBoxName.Size = new Size(434, 103);
+            textBoxName.TabIndex = 0;
+            // 
+            // dataGridView
+            // 
+            dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridView.Columns.AddRange(new DataGridViewColumn[] { ProductId, ProductName, ProductAmount });
+            dataGridView.Location = new Point(6, 22);
+            dataGridView.Name = "dataGridView";
+            dataGridView.Size = new Size(423, 241);
+            dataGridView.TabIndex = 1;
+            // 
+            // ProductId
+            // 
+            ProductId.HeaderText = "Id";
+            ProductId.Name = "ProductId";
+            ProductId.ReadOnly = true;
+            ProductId.Visible = false;
+            // 
+            // ProductName
+            // 
+            ProductName.HeaderText = "Название";
+            ProductName.Name = "ProductName";
+            ProductName.ReadOnly = true;
+            // 
+            // ProductAmount
+            // 
+            ProductAmount.HeaderText = "Количество";
+            ProductAmount.Name = "ProductAmount";
+            ProductAmount.ReadOnly = true;
+            // 
+            // groupBoxProducts
+            // 
+            groupBoxProducts.Controls.Add(buttonDeleteProduct);
+            groupBoxProducts.Controls.Add(buttonUpdateProduct);
+            groupBoxProducts.Controls.Add(buttonAddProduct);
+            groupBoxProducts.Controls.Add(dataGridView);
+            groupBoxProducts.Location = new Point(12, 150);
+            groupBoxProducts.Name = "groupBoxProducts";
+            groupBoxProducts.Size = new Size(776, 288);
+            groupBoxProducts.TabIndex = 2;
+            groupBoxProducts.TabStop = false;
+            groupBoxProducts.Text = "Товары";
+            // 
+            // buttonDeleteProduct
+            // 
+            buttonDeleteProduct.Location = new Point(435, 132);
+            buttonDeleteProduct.Name = "buttonDeleteProduct";
+            buttonDeleteProduct.Size = new Size(126, 49);
+            buttonDeleteProduct.TabIndex = 4;
+            buttonDeleteProduct.Text = "Удалить";
+            buttonDeleteProduct.UseVisualStyleBackColor = true;
+            buttonDeleteProduct.Click += buttonDeleteProduct_Click;
+            // 
+            // buttonUpdateProduct
+            // 
+            buttonUpdateProduct.Location = new Point(435, 77);
+            buttonUpdateProduct.Name = "buttonUpdateProduct";
+            buttonUpdateProduct.Size = new Size(126, 49);
+            buttonUpdateProduct.TabIndex = 3;
+            buttonUpdateProduct.Text = "Изменить";
+            buttonUpdateProduct.UseVisualStyleBackColor = true;
+            buttonUpdateProduct.Click += buttonUpdateProduct_Click;
+            // 
+            // buttonAddProduct
+            // 
+            buttonAddProduct.Location = new Point(435, 22);
+            buttonAddProduct.Name = "buttonAddProduct";
+            buttonAddProduct.Size = new Size(126, 49);
+            buttonAddProduct.TabIndex = 2;
+            buttonAddProduct.Text = "Добавить";
+            buttonAddProduct.UseVisualStyleBackColor = true;
+            buttonAddProduct.Click += buttonAddProduct_Click;
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(18, 23);
+            label1.Name = "label1";
+            label1.Size = new Size(100, 15);
+            label1.TabIndex = 3;
+            label1.Text = "Общие сведения";
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(654, 40);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(75, 23);
+            buttonSave.TabIndex = 4;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += buttonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(654, 88);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(75, 23);
+            buttonCancel.TabIndex = 5;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            // 
+            // textBoxPrice
+            // 
+            textBoxPrice.Enabled = false;
+            textBoxPrice.Location = new Point(473, 88);
+            textBoxPrice.Name = "textBoxPrice";
+            textBoxPrice.Size = new Size(100, 23);
+            textBoxPrice.TabIndex = 6;
+            // 
+            // comboBoxSupplier
+            // 
+            comboBoxSupplier.FormattingEnabled = true;
+            comboBoxSupplier.Location = new Point(473, 41);
+            comboBoxSupplier.Name = "comboBoxSupplier";
+            comboBoxSupplier.Size = new Size(121, 23);
+            comboBoxSupplier.TabIndex = 7;
+            // 
+            // FormSupply
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(comboBoxSupplier);
+            Controls.Add(textBoxPrice);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(label1);
+            Controls.Add(groupBoxProducts);
+            Controls.Add(textBoxName);
+            Name = "FormSupply";
+            Text = "FormSupply";
+            Load += FormSupply_Load;
+            ((System.ComponentModel.ISupportInitialize)dataGridView).EndInit();
+            groupBoxProducts.ResumeLayout(false);
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private TextBox textBoxName;
+        private DataGridView dataGridView;
+        private DataGridViewTextBoxColumn ProductId;
+        private DataGridViewTextBoxColumn ProductName;
+        private DataGridViewTextBoxColumn ProductAmount;
+        private GroupBox groupBoxProducts;
+        private Button buttonAddProduct;
+        private Label label1;
+        private Button buttonUpdateProduct;
+        private Button buttonDeleteProduct;
+        private Button buttonSave;
+        private Button buttonCancel;
+        private TextBox textBoxPrice;
+        private ComboBox comboBoxSupplier;
+    }
+}

WinFormsApp/FormSupply.cs

@@ -0,0 +1,222 @@
+using Contracts.BindingModels;
+using Contracts.BusinessLogicContracts;
+using Contracts.SearchModels;
+using DataModels.Models;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Diagnostics;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace WinFormsApp
+{
+    public partial class FormSupply : Form
+    {
+        private readonly ILogger _logger;
+        private readonly ISupplyLogic _logic;
+        private readonly ISupplierLogic _supplierLogic;
+        private Guid? _id;
+        private Dictionary<Guid, (IProduct, int)> _supplyProducts;
+        public Guid Id { set { _id = value; } }
+        public FormSupply(ILogger<FormSupply> logger, ISupplyLogic logic, ISupplierLogic supplierLogic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+            _supplyProducts = new Dictionary<Guid, (IProduct, int)>();
+            _supplierLogic = supplierLogic;
+        }
+        private void FormSupply_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                _logger.LogInformation("Загрузка изделия");
+                try
+                {
+                    var view = _logic.ReadElement(new SupplySearchModel
+                    {
+                        Id = _id.Value
+                    });
+                    if (view != null)
+                    {
+                        textBoxName.Text = view.Name;
+                        _supplyProducts = view.Products ?? new Dictionary<Guid, (IProduct, int)>();
+                        LoadData();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка загрузки изделия");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+            try
+            {
+                var list = _supplierLogic.ReadList(null);
+                if (list != null)
+                {
+                    comboBoxSupplier.DisplayMember = "Name";
+                    comboBoxSupplier.ValueMember = "Id";
+                    comboBoxSupplier.DataSource = list;
+                    comboBoxSupplier.SelectedItem = null;
+                }
+
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки списка клиентов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadData()
+        {
+            _logger.LogInformation("Загрузка компонент изделия");
+            try
+            {
+                if (_supplyProducts != null)
+                {
+                    dataGridView.Rows.Clear();
+                    foreach (var pc in _supplyProducts)
+                    {
+                        dataGridView.Rows.Add(new object[] { pc.Key, pc.Value.Item1.Name, pc.Value.Item2 });
+                    }
+                    textBoxPrice.Text = CalcPrice().ToString();
+                }
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки компонент изделия");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK,
+               MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonAddProduct_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormSupplyProduct));
+            if (service is FormSupplyProduct form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    if (form.ProductModel == null)
+                    {
+                        return;
+                    }
+                    _logger.LogInformation("Добавление нового компонента");
+                    if (_supplyProducts.ContainsKey(form.Id))
+                    {
+                        _supplyProducts[form.Id] = (form.ProductModel, form.Count);
+                    }
+                    else
+                    {
+                        _supplyProducts.Add(form.Id, (form.ProductModel, form.Count));
+                    }
+                    LoadData();
+                }
+            }
+        }
+
+        private void buttonUpdateProduct_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service =
+               Program.ServiceProvider?.GetService(typeof(FormSupplyProduct));
+                if (service is FormSupplyProduct form)
+                {
+                    Guid id = (Guid)dataGridView.SelectedRows[0].Cells[0].Value;
+                    form.Id = id;
+                    form.Count = _supplyProducts[id].Item2;
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        if (form.ProductModel == null)
+                        {
+                            return;
+                        }
+                        _logger.LogInformation("Изменение компонента");
+                        _supplyProducts[form.Id] = (form.ProductModel, form.Count);
+                        LoadData();
+                    }
+                }
+            }
+        }
+
+        private void buttonDeleteProduct_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос",
+               MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+                {
+                    try
+                    {
+                        _logger.LogInformation("Удаление компонента");
+                        _supplyProducts?.Remove((Guid)dataGridView.SelectedRows[0].Cells[0].Value);
+                    }
+                    catch (Exception ex)
+                    {
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                    LoadData();
+                }
+            }
+        }
+
+        private void buttonSave_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxName.Text))
+            {
+                MessageBox.Show("Заполните информацию", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (_supplyProducts == null || _supplyProducts.Count == 0)
+            {
+                MessageBox.Show("Заполните товары", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Сохранение изделия");
+            try
+            {
+                var model = new SupplyBindingModel
+                {
+                    Id = _id ?? Guid.NewGuid(),
+                    Name = textBoxName.Text,
+                    Date = DateTime.UtcNow,
+                    Price = Convert.ToDouble(textBoxPrice.Text),
+                    SupplierId = (Guid)comboBoxSupplier.SelectedValue,
+                    SupplyProducts = _supplyProducts,
+                    
+                };
+                var operationResult = _id.HasValue ? _logic.Update(model) : _logic.Create(model);
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка сохранения изделия"); MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private double CalcPrice()
+        {
+            double price = 0;
+            foreach (var elem in _supplyProducts)
+            {
+                price += ((elem.Value.Item1?.Price ?? 0) * elem.Value.Item2);
+            }
+            return Math.Round(price * 1.1, 2);
+        }
+    }
+}

WinFormsApp/FormSupply.resx

@@ -0,0 +1,129 @@
+<?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="ProductId.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="ProductName.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="ProductAmount.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+</root>

WinFormsApp/FormSupplyProduct.Designer.cs

@@ -0,0 +1,94 @@
+namespace WinFormsApp
+{
+    partial class FormSupplyProduct
+    {
+        /// <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()
+        {
+            numericUpDownCount = new NumericUpDown();
+            comboBoxProduct = new ComboBox();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCount).BeginInit();
+            SuspendLayout();
+            // 
+            // numericUpDownCount
+            // 
+            numericUpDownCount.Location = new Point(26, 76);
+            numericUpDownCount.Name = "numericUpDownCount";
+            numericUpDownCount.Size = new Size(120, 23);
+            numericUpDownCount.TabIndex = 1;
+            // 
+            // comboBoxProduct
+            // 
+            comboBoxProduct.FormattingEnabled = true;
+            comboBoxProduct.Location = new Point(25, 33);
+            comboBoxProduct.Name = "comboBoxProduct";
+            comboBoxProduct.Size = new Size(121, 23);
+            comboBoxProduct.TabIndex = 2;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(192, 74);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(75, 23);
+            buttonSave.TabIndex = 3;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(192, 98);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(75, 23);
+            buttonCancel.TabIndex = 4;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormSupplyProduct
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(287, 138);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(comboBoxProduct);
+            Controls.Add(numericUpDownCount);
+            Name = "FormSupplyProduct";
+            Text = "FormSupplyProduct";
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCount).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+        private NumericUpDown numericUpDownCount;
+        private ComboBox comboBoxProduct;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

WinFormsApp/FormSupplyProduct.cs

@@ -0,0 +1,88 @@
+using Contracts.BusinessLogicContracts;
+using Contracts.ViewModels;
+using DataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace WinFormsApp
+{
+    public partial class FormSupplyProduct : Form
+    {
+        private readonly List<ProductViewModel>? _list;
+        public Guid Id
+        {
+            get
+            {
+                return (Guid)comboBoxProduct.SelectedValue;
+            }
+            set
+            {
+                comboBoxProduct.SelectedValue = value;
+            }
+        }
+
+        public IProduct? ProductModel
+        {
+            get
+            {
+                if (_list == null)
+                {
+                    return null;
+                }
+                foreach (var elem in _list)
+                {
+                    if (elem.Id == Id)
+                    {
+                        return elem;
+                    }
+                }
+                return null;
+            }
+        }
+
+        public int Count
+        {
+            get { return Convert.ToInt32(numericUpDownCount.Value); }
+            set { numericUpDownCount.Value = value; }
+        }
+        public FormSupplyProduct(IProductLogic logic)
+        {
+            InitializeComponent();
+            _list = logic.ReadList(null);
+            if (_list != null)
+            {
+                comboBoxProduct.DisplayMember = "Name";
+                comboBoxProduct.ValueMember = "Id";
+                comboBoxProduct.DataSource = _list;
+                comboBoxProduct.SelectedItem = null;
+            }
+        }
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            if (numericUpDownCount.Value == null || numericUpDownCount.Value <= 0)
+            {
+                MessageBox.Show("Кол-во товаров должно иметь значение больше 0", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (comboBoxProduct.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите товар", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            DialogResult = DialogResult.OK;
+            Close();
+        }
+        private void ButtonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+    }
+}

WinFormsApp/FormSupplyProduct.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>

WinFormsApp/Program.cs

@@ -47,6 +47,8 @@ namespace WinFormsApp
             services.AddTransient<FormMain>();
             services.AddTransient<FormProducts>();
             services.AddTransient<FormSuppliers>();
+            services.AddTransient<FormSupply>();
+            services.AddTransient<FormSupplyProduct>();
         }
     }
 }