Доделал

GasStation/Entities/Enums/ProductType.cs

@@ -0,0 +1,14 @@
+namespace GasStation.Entities.Enums;
+
+public enum ProductType
+{
+    None = 0 ,
+
+    Gas92 = 1 ,
+
+    Gas95 = 2 ,
+
+    Diesel = 3,
+
+    Oil = 4
+}

GasStation/Entities/Product.cs

@@ -6,14 +6,20 @@ public class Product
 {
     public int Id { get; private set; }
 
-    public Gasmen Gasman { get; private set; }
+    public int Cost { get; private set; }
 
-    public static Product CreateProduct(int id, Gasmen gasman)
+    public Gasmen Gasmen { get; private set; }
+
+    public ProductType ProductType { get; private set; }
+
+    public static Product CreateProduct(int id, int cost ,Gasmen gasmen, ProductType productType)
     {
         return new Product 
         { 
             Id = id,
-            Gasman  = gasman
+            Cost = cost,
+            Gasmen  = gasmen,
+            ProductType = productType
         };
     }
 }

GasStation/FormGasstation.Designer.cs

@@ -30,13 +30,13 @@
         {
             menuStrip1 = new MenuStrip();
             справочникиToolStripMenuItem = new ToolStripMenuItem();
+            GasmanToolStripMenuItem = new ToolStripMenuItem();
+            SupplierToolStripMenuItem = new ToolStripMenuItem();
+            ProductToolStripMenuItem = new ToolStripMenuItem();
             операцииToolStripMenuItem = new ToolStripMenuItem();
+            SupplyToolStripMenuItem = new ToolStripMenuItem();
+            SellingToolStripMenuItem = new ToolStripMenuItem();
             отчётыToolStripMenuItem = new ToolStripMenuItem();
-            заправщикToolStripMenuItem = new ToolStripMenuItem();
-            поставщикToolStripMenuItem = new ToolStripMenuItem();
-            товарToolStripMenuItem = new ToolStripMenuItem();
-            поставкаToolStripMenuItem = new ToolStripMenuItem();
-            продажаToolStripMenuItem = new ToolStripMenuItem();
             menuStrip1.SuspendLayout();
             SuspendLayout();
             // 
@@ -51,54 +51,59 @@
             // 
             // справочникиToolStripMenuItem
             // 
-            справочникиToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { заправщикToolStripMenuItem, поставщикToolStripMenuItem, товарToolStripMenuItem });
+            справочникиToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { GasmanToolStripMenuItem, SupplierToolStripMenuItem, ProductToolStripMenuItem });
             справочникиToolStripMenuItem.Name = "справочникиToolStripMenuItem";
             справочникиToolStripMenuItem.Size = new Size(94, 20);
             справочникиToolStripMenuItem.Text = "Справочники";
             // 
+            // GasmanToolStripMenuItem
+            // 
+            GasmanToolStripMenuItem.Name = "GasmanToolStripMenuItem";
+            GasmanToolStripMenuItem.Size = new Size(180, 22);
+            GasmanToolStripMenuItem.Text = "Заправщик";
+            GasmanToolStripMenuItem.Click += GasmanToolStripMenuItem_Click;
+            // 
+            // SupplierToolStripMenuItem
+            // 
+            SupplierToolStripMenuItem.Name = "SupplierToolStripMenuItem";
+            SupplierToolStripMenuItem.Size = new Size(180, 22);
+            SupplierToolStripMenuItem.Text = "Поставщик";
+            SupplierToolStripMenuItem.Click += SupplierToolStripMenuItem_Click;
+            // 
+            // ProductToolStripMenuItem
+            // 
+            ProductToolStripMenuItem.Name = "ProductToolStripMenuItem";
+            ProductToolStripMenuItem.Size = new Size(180, 22);
+            ProductToolStripMenuItem.Text = "Товар";
+            ProductToolStripMenuItem.Click += ProductToolStripMenuItem_Click;
+            // 
             // операцииToolStripMenuItem
             // 
-            операцииToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { поставкаToolStripMenuItem, продажаToolStripMenuItem });
+            операцииToolStripMenuItem.DropDownItems.AddRange(new ToolStripItem[] { SupplyToolStripMenuItem, SellingToolStripMenuItem });
             операцииToolStripMenuItem.Name = "операцииToolStripMenuItem";
             операцииToolStripMenuItem.Size = new Size(75, 20);
             операцииToolStripMenuItem.Text = "Операции";
             // 
+            // SupplyToolStripMenuItem
+            // 
+            SupplyToolStripMenuItem.Name = "SupplyToolStripMenuItem";
+            SupplyToolStripMenuItem.Size = new Size(180, 22);
+            SupplyToolStripMenuItem.Text = "Поставка";
+            SupplyToolStripMenuItem.Click += SupplyToolStripMenuItem_Click;
+            // 
+            // SellingToolStripMenuItem
+            // 
+            SellingToolStripMenuItem.Name = "SellingToolStripMenuItem";
+            SellingToolStripMenuItem.Size = new Size(180, 22);
+            SellingToolStripMenuItem.Text = "Продажа";
+            SellingToolStripMenuItem.Click += SellingToolStripMenuItem_Click;
+            // 
             // отчётыToolStripMenuItem
             // 
             отчётыToolStripMenuItem.Name = "отчётыToolStripMenuItem";
             отчётыToolStripMenuItem.Size = new Size(60, 20);
             отчётыToolStripMenuItem.Text = "Отчёты";
             // 
-            // заправщикToolStripMenuItem
-            // 
-            заправщикToolStripMenuItem.Name = "заправщикToolStripMenuItem";
-            заправщикToolStripMenuItem.Size = new Size(180, 22);
-            заправщикToolStripMenuItem.Text = "Заправщик";
-            // 
-            // поставщикToolStripMenuItem
-            // 
-            поставщикToolStripMenuItem.Name = "поставщикToolStripMenuItem";
-            поставщикToolStripMenuItem.Size = new Size(180, 22);
-            поставщикToolStripMenuItem.Text = "Поставщик";
-            // 
-            // товарToolStripMenuItem
-            // 
-            товарToolStripMenuItem.Name = "товарToolStripMenuItem";
-            товарToolStripMenuItem.Size = new Size(180, 22);
-            товарToolStripMenuItem.Text = "Товар";
-            // 
-            // поставкаToolStripMenuItem
-            // 
-            поставкаToolStripMenuItem.Name = "поставкаToolStripMenuItem";
-            поставкаToolStripMenuItem.Size = new Size(180, 22);
-            поставкаToolStripMenuItem.Text = "Поставка";
-            // 
-            // продажаToolStripMenuItem
-            // 
-            продажаToolStripMenuItem.Name = "продажаToolStripMenuItem";
-            продажаToolStripMenuItem.Size = new Size(180, 22);
-            продажаToolStripMenuItem.Text = "Продажа";
-            // 
             // FormGasStation
             // 
             AutoScaleDimensions = new SizeF(7F, 15F);
@@ -123,10 +128,10 @@
         private ToolStripMenuItem справочникиToolStripMenuItem;
         private ToolStripMenuItem операцииToolStripMenuItem;
         private ToolStripMenuItem отчётыToolStripMenuItem;
-        private ToolStripMenuItem заправщикToolStripMenuItem;
+        private ToolStripMenuItem GasmanToolStripMenuItem;
-        private ToolStripMenuItem поставщикToolStripMenuItem;
+        private ToolStripMenuItem SupplierToolStripMenuItem;
-        private ToolStripMenuItem товарToolStripMenuItem;
+        private ToolStripMenuItem ProductToolStripMenuItem;
-        private ToolStripMenuItem поставкаToolStripMenuItem;
+        private ToolStripMenuItem SupplyToolStripMenuItem;
-        private ToolStripMenuItem продажаToolStripMenuItem;
+        private ToolStripMenuItem SellingToolStripMenuItem;
     }
 }

GasStation/FormGasstation.cs

@@ -1,10 +1,77 @@
+using GasStation.Forms;
+using Unity;
+
 namespace GasStation
 {
     public partial class FormGasStation : System.Windows.Forms.Form
     {
-        public FormGasStation()
+        private readonly IUnityContainer _container;
+
+        public FormGasStation(IUnityContainer container)
         {
             InitializeComponent();
+            _container = container ??
+                throw new ArgumentNullException(nameof(container));
+        }
+
+        private void GasmanToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormGasmen>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè äîáàâëåíèè", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void SupplierToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormSuppliers>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè äîáàâëåíèè", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ProductToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormProducts>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè äîáàâëåíèè", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void SupplyToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormSupplies>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè äîáàâëåíèè", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void SellingToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormSellings>().ShowDialog();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Îøèáêà ïðè äîáàâëåíèè", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
         }
     }
 }

GasStation/Forms/FormGasman.Designer.cs

@@ -48,11 +48,11 @@
             // labelNumber
             // 
             labelNumber.AutoSize = true;
-            labelNumber.Location = new Point(52, 94);
+            labelNumber.Location = new Point(34, 89);
             labelNumber.Name = "labelNumber";
-            labelNumber.Size = new Size(45, 15);
+            labelNumber.Size = new Size(101, 15);
             labelNumber.TabIndex = 1;
-            labelNumber.Text = "Номер";
+            labelNumber.Text = "Номер телефона";
             // 
             // textBoxName
             // 

GasStation/Forms/FormGasman.cs

@@ -24,7 +24,7 @@ namespace GasStation.Forms
                 try
                 {
                     var gasman = _gasmanRepository.ReadGasmanByID(value);
-                    if (gasman != null)
+                    if (gasman == null)
                     {
                         throw new InvalidDataException(nameof(gasman));
                     }

GasStation/Forms/FormProduct.Designer.cs

@@ -0,0 +1,146 @@
+namespace GasStation.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();
+            numericUpDownCost = new NumericUpDown();
+            comboBoxProduct = new ComboBox();
+            checkedListBoxGasman = new CheckedListBox();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCost).BeginInit();
+            SuspendLayout();
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(43, 29);
+            label1.Name = "label1";
+            label1.Size = new Size(70, 15);
+            label1.TabIndex = 0;
+            label1.Text = "Заправщик";
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(43, 132);
+            label2.Name = "label2";
+            label2.Size = new Size(39, 15);
+            label2.TabIndex = 1;
+            label2.Text = "Товар";
+            // 
+            // label3
+            // 
+            label3.AutoSize = true;
+            label3.Location = new Point(47, 202);
+            label3.Name = "label3";
+            label3.Size = new Size(67, 15);
+            label3.TabIndex = 2;
+            label3.Text = "Стоимость";
+            // 
+            // numericUpDownCost
+            // 
+            numericUpDownCost.Location = new Point(193, 202);
+            numericUpDownCost.Minimum = new decimal(new int[] { 1, 0, 0, 0 });
+            numericUpDownCost.Name = "numericUpDownCost";
+            numericUpDownCost.Size = new Size(156, 23);
+            numericUpDownCost.TabIndex = 3;
+            numericUpDownCost.Value = new decimal(new int[] { 1, 0, 0, 0 });
+            // 
+            // comboBoxProduct
+            // 
+            comboBoxProduct.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxProduct.FormattingEnabled = true;
+            comboBoxProduct.Location = new Point(194, 132);
+            comboBoxProduct.Name = "comboBoxProduct";
+            comboBoxProduct.Size = new Size(155, 23);
+            comboBoxProduct.TabIndex = 4;
+            // 
+            // checkedListBoxGasman
+            // 
+            checkedListBoxGasman.FormattingEnabled = true;
+            checkedListBoxGasman.Location = new Point(194, 29);
+            checkedListBoxGasman.Name = "checkedListBoxGasman";
+            checkedListBoxGasman.Size = new Size(155, 76);
+            checkedListBoxGasman.TabIndex = 5;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(47, 269);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(75, 23);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(269, 269);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(80, 23);
+            buttonCancel.TabIndex = 7;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormProduct
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(401, 314);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(checkedListBoxGasman);
+            Controls.Add(comboBoxProduct);
+            Controls.Add(numericUpDownCost);
+            Controls.Add(label3);
+            Controls.Add(label2);
+            Controls.Add(label1);
+            Name = "FormProduct";
+            Text = "Товар";
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCost).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label label1;
+        private Label label2;
+        private Label label3;
+        private NumericUpDown numericUpDownCost;
+        private ComboBox comboBoxProduct;
+        private CheckedListBox checkedListBoxGasman;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

GasStation/Forms/FormProduct.cs

@@ -0,0 +1,94 @@
+using GasStation.Entities.Enums;
+using GasStation.Repositories;
+using GasStation.Entities;
+
+namespace GasStation.Forms
+{
+    public partial class FormProduct : Form
+    {
+
+        private readonly IProductRepository _productRepository;
+
+        private int? _productId;
+
+        public FormProduct(IProductRepository productRepository)
+        {
+            InitializeComponent();
+            _productRepository = productRepository ??
+                throw new ArgumentNullException(nameof(productRepository));
+            foreach (var elem in Enum.GetValues(typeof(Gasmen)))
+            {
+                checkedListBoxGasman.Items.Add(elem);
+            }
+        }
+
+        public int ID
+        {
+            set
+            {
+                try
+                {
+                    var product = _productRepository.ReadProductByID(value);
+                    if (product == null)
+                    {
+                        throw new InvalidDataException(nameof(product));
+                    }
+
+                    foreach(Gasmen elem in Enum.GetValues(typeof(Gasmen)))
+                    {
+                        if ((elem & product.Gasmen) != 0)
+                        {
+                            checkedListBoxGasman.SetItemChecked(checkedListBoxGasman.Items.IndexOf(elem), true);
+                        }
+                    }
+
+                    checkedListBoxGasman.SelectedItem = product.Gasmen;
+                    comboBoxProduct.SelectedItem = product.ProductType;
+                    _productId = value;
+                }
+                catch (Exception ex)
+                {
+                    MessageBox.Show(ex.Message, "Ошибка при получении данных", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    return;
+                }
+            }
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (checkedListBoxGasman.CheckedItems.Count == 0)
+                {
+                    throw new Exception("Имеются незаполненые поля");
+                }
+                if (_productId.HasValue)
+                {
+                    _productRepository.UpdateProduct(CreateProduct(_productId.Value));
+                }
+                else
+                {
+                    _productRepository.CreateProduct(CreateProduct(0));
+                }
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при сохранении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e) => Close();
+
+        private Product CreateProduct(int id)
+        {
+            Gasmen gasmen = Gasmen.None;
+            foreach (var elem in checkedListBoxGasman.CheckedItems)
+            {
+                gasmen |= (Gasmen)elem;
+            }
+            return Product.CreateProduct(id, Convert.ToInt32(numericUpDownCost.Value), gasmen, (ProductType)comboBoxProduct.SelectedItem!);
+        }
+    }
+}

GasStation/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>

GasStation/Forms/FormProducts.Designer.cs

@@ -0,0 +1,122 @@
+namespace GasStation.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();
+            buttonUpd = new Button();
+            buttonDel = new Button();
+            buttonAdd = new Button();
+            dataGridViewData = new DataGridView();
+            panel1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).BeginInit();
+            SuspendLayout();
+            // 
+            // panel1
+            // 
+            panel1.Controls.Add(buttonUpd);
+            panel1.Controls.Add(buttonDel);
+            panel1.Controls.Add(buttonAdd);
+            panel1.Dock = DockStyle.Right;
+            panel1.Location = new Point(657, 0);
+            panel1.Name = "panel1";
+            panel1.Size = new Size(143, 450);
+            panel1.TabIndex = 1;
+            // 
+            // buttonUpd
+            // 
+            buttonUpd.Location = new Point(35, 343);
+            buttonUpd.Name = "buttonUpd";
+            buttonUpd.Size = new Size(75, 69);
+            buttonUpd.TabIndex = 3;
+            buttonUpd.Text = "Редактировать";
+            buttonUpd.UseVisualStyleBackColor = true;
+            buttonUpd.Click += ButtonUpd_Click;
+            // 
+            // buttonDel
+            // 
+            buttonDel.Location = new Point(33, 188);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(77, 73);
+            buttonDel.TabIndex = 2;
+            buttonDel.Text = "Удалить";
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += ButtonDel_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(32, 30);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(75, 73);
+            buttonAdd.TabIndex = 1;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridViewData
+            // 
+            dataGridViewData.AllowUserToAddRows = false;
+            dataGridViewData.AllowUserToDeleteRows = false;
+            dataGridViewData.AllowUserToResizeColumns = false;
+            dataGridViewData.AllowUserToResizeRows = false;
+            dataGridViewData.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewData.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewData.Dock = DockStyle.Fill;
+            dataGridViewData.Location = new Point(0, 0);
+            dataGridViewData.MultiSelect = false;
+            dataGridViewData.Name = "dataGridViewData";
+            dataGridViewData.ReadOnly = true;
+            dataGridViewData.RowHeadersVisible = false;
+            dataGridViewData.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewData.Size = new Size(657, 450);
+            dataGridViewData.TabIndex = 2;
+            // 
+            // FormProducts
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(dataGridViewData);
+            Controls.Add(panel1);
+            Name = "FormProducts";
+            Text = "Товары";
+            Load += FormProducts_Load;
+            panel1.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel1;
+        private Button buttonUpd;
+        private Button buttonDel;
+        private Button buttonAdd;
+        private DataGridView dataGridViewData;
+    }
+}

GasStation/Forms/FormProducts.cs

@@ -0,0 +1,104 @@
+using GasStation.Repositories;
+using Unity;
+
+namespace GasStation.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 ButtonDel_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIDFromSelectedRow(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 удаления", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void ButtonUpd_Click(object sender, EventArgs e)
+        {
+            if (!TryGetIDFromSelectedRow(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 bool TryGetIDFromSelectedRow(out int id)
+        {
+            id = 0;
+            if (dataGridViewData.SelectedRows.Count < 1)
+            {
+                MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return false;
+            }
+
+            id = Convert.ToInt32(dataGridViewData.SelectedRows[0].Cells["ID"].Value);
+            return true;
+        }
+
+        private void FormProducts_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при загрузке", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridViewData.DataSource = _productRepository.ReadProduct();
+    }
+}

GasStation/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>

GasStation/Forms/FormSelling.Designer.cs

@@ -0,0 +1,147 @@
+namespace GasStation.Forms
+{
+    partial class FormSelling
+    {
+        /// <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();
+            numericUpDownCount = new NumericUpDown();
+            label3 = new Label();
+            comboBoxGasman = new ComboBox();
+            comboBoxProduct = new ComboBox();
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCount).BeginInit();
+            SuspendLayout();
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(47, 35);
+            label1.Name = "label1";
+            label1.Size = new Size(70, 15);
+            label1.TabIndex = 0;
+            label1.Text = "Заправщик";
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(47, 98);
+            label2.Name = "label2";
+            label2.Size = new Size(39, 15);
+            label2.TabIndex = 1;
+            label2.Text = "Товар";
+            // 
+            // numericUpDownCount
+            // 
+            numericUpDownCount.Location = new Point(149, 164);
+            numericUpDownCount.Minimum = new decimal(new int[] { 1, 0, 0, 0 });
+            numericUpDownCount.Name = "numericUpDownCount";
+            numericUpDownCount.Size = new Size(120, 23);
+            numericUpDownCount.TabIndex = 2;
+            numericUpDownCount.Value = new decimal(new int[] { 1, 0, 0, 0 });
+            // 
+            // label3
+            // 
+            label3.AutoSize = true;
+            label3.Location = new Point(47, 172);
+            label3.Name = "label3";
+            label3.Size = new Size(46, 15);
+            label3.TabIndex = 3;
+            label3.Text = "Кол-во";
+            // 
+            // comboBoxGasman
+            // 
+            comboBoxGasman.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxGasman.FormattingEnabled = true;
+            comboBoxGasman.Location = new Point(147, 27);
+            comboBoxGasman.Name = "comboBoxGasman";
+            comboBoxGasman.Size = new Size(121, 23);
+            comboBoxGasman.TabIndex = 4;
+            // 
+            // comboBoxProduct
+            // 
+            comboBoxProduct.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxProduct.FormattingEnabled = true;
+            comboBoxProduct.Location = new Point(148, 90);
+            comboBoxProduct.Name = "comboBoxProduct";
+            comboBoxProduct.Size = new Size(121, 23);
+            comboBoxProduct.TabIndex = 5;
+            // 
+            // buttonSave
+            // 
+            buttonSave.Location = new Point(47, 238);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(75, 23);
+            buttonSave.TabIndex = 6;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(194, 238);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(75, 23);
+            buttonCancel.TabIndex = 7;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // FormSelling
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(336, 297);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(comboBoxProduct);
+            Controls.Add(comboBoxGasman);
+            Controls.Add(label3);
+            Controls.Add(numericUpDownCount);
+            Controls.Add(label2);
+            Controls.Add(label1);
+            Name = "FormSelling";
+            Text = "Продажа";
+            ((System.ComponentModel.ISupportInitialize)numericUpDownCount).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Label label1;
+        private Label label2;
+        private NumericUpDown numericUpDownCount;
+        private Label label3;
+        private ComboBox comboBoxGasman;
+        private ComboBox comboBoxProduct;
+        private Button buttonSave;
+        private Button buttonCancel;
+    }
+}

GasStation/Forms/FormSelling.cs

@@ -0,0 +1,51 @@
+using GasStation.Entities;
+using GasStation.Repositories;
+using GasStation.Repositories.Implementations;
+
+
+namespace GasStation.Forms
+{
+    public partial class FormSelling : Form
+    {
+        private readonly ISellingRepository _sellingRepository;
+
+        public FormSelling(ISellingRepository sellingRepository, IGasmanRepository gasmanRepository, IProductRepository productRepository)
+        {
+            InitializeComponent();
+            _sellingRepository = sellingRepository ??
+                throw new ArgumentNullException(nameof(sellingRepository));
+            
+            comboBoxGasman.DataSource = gasmanRepository.ReadGasman();
+            comboBoxGasman.DisplayMember = "GasmanName";
+            comboBoxGasman.ValueMember = "ID";
+
+            comboBoxProduct.DataSource = productRepository.ReadProduct();
+            comboBoxProduct.DisplayMember = "ProductName";
+            comboBoxProduct.ValueMember = "ID";
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (comboBoxGasman.SelectedIndex < 0 ||
+                    comboBoxProduct.SelectedIndex < 0)
+                {
+                    throw new Exception("Имеются незаполненые поля");
+                }
+
+                _sellingRepository.CreateSelling(Selling.CreateSelling(0, (int)comboBoxGasman.SelectedValue!,
+                    (int)comboBoxProduct.SelectedValue!, Convert.ToInt32(numericUpDownCount.Value)));
+
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при сохранении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e) => Close();
+    }
+}

GasStation/Forms/FormSelling.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>

GasStation/Forms/FormSellings.Designer.cs

@@ -0,0 +1,96 @@
+namespace GasStation.Forms
+{
+    partial class FormSellings
+    {
+        /// <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();
+            buttonAdd = new Button();
+            dataGridViewData = new DataGridView();
+            panel1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).BeginInit();
+            SuspendLayout();
+            // 
+            // panel1
+            // 
+            panel1.Controls.Add(buttonAdd);
+            panel1.Dock = DockStyle.Right;
+            panel1.Location = new Point(657, 0);
+            panel1.Name = "panel1";
+            panel1.Size = new Size(143, 450);
+            panel1.TabIndex = 2;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(35, 166);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(75, 73);
+            buttonAdd.TabIndex = 1;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridViewData
+            // 
+            dataGridViewData.AllowUserToAddRows = false;
+            dataGridViewData.AllowUserToDeleteRows = false;
+            dataGridViewData.AllowUserToResizeColumns = false;
+            dataGridViewData.AllowUserToResizeRows = false;
+            dataGridViewData.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewData.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewData.Dock = DockStyle.Fill;
+            dataGridViewData.Location = new Point(0, 0);
+            dataGridViewData.MultiSelect = false;
+            dataGridViewData.Name = "dataGridViewData";
+            dataGridViewData.ReadOnly = true;
+            dataGridViewData.RowHeadersVisible = false;
+            dataGridViewData.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewData.Size = new Size(657, 450);
+            dataGridViewData.TabIndex = 3;
+            // 
+            // FormSellings
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(dataGridViewData);
+            Controls.Add(panel1);
+            Name = "FormSellings";
+            Text = "Продажи";
+            Load += FormSellings_Load;
+            panel1.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel1;
+        private Button buttonAdd;
+        private DataGridView dataGridViewData;
+    }
+}

GasStation/Forms/FormSellings.cs

@@ -0,0 +1,49 @@
+using GasStation.Repositories;
+using Unity;
+
+namespace GasStation.Forms
+{
+    public partial class FormSellings : Form
+    {
+        private readonly IUnityContainer _container;
+
+        private readonly ISellingRepository _sellingRepository;
+
+        public FormSellings(IUnityContainer container, ISellingRepository sellingRepository)
+        {
+            InitializeComponent();
+            _container = container ??
+                throw new ArgumentNullException(nameof(container));
+            _sellingRepository = sellingRepository ??
+                throw new ArgumentNullException(nameof(sellingRepository));
+        }
+
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormSelling>().ShowDialog();
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при добавлении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridViewData.DataSource = _sellingRepository.ReadSelling();
+
+        private void FormSellings_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при загрузке", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+    }
+}

GasStation/Forms/FormSellings.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>

GasStation/Forms/FormSupplier.Designer.cs

@@ -28,19 +28,12 @@
         /// </summary>
         private void InitializeComponent()
         {
-            textBoxSupplierName = new TextBox();
             labelSupplier = new Label();
             buttonSave = new Button();
             buttonCancel = new Button();
+            comboBoxSupplierName = new ComboBox();
             SuspendLayout();
             // 
-            // textBoxSupplierName
-            // 
-            textBoxSupplierName.Location = new Point(100, 12);
-            textBoxSupplierName.Name = "textBoxSupplierName";
-            textBoxSupplierName.Size = new Size(290, 23);
-            textBoxSupplierName.TabIndex = 0;
-            // 
             // labelSupplier
             // 
             labelSupplier.AutoSize = true;
@@ -70,15 +63,24 @@
             buttonCancel.UseVisualStyleBackColor = true;
             buttonCancel.Click += ButtonCancel_Click;
             // 
+            // comboBoxSupplierName
+            // 
+            comboBoxSupplierName.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxSupplierName.FormattingEnabled = true;
+            comboBoxSupplierName.Location = new Point(100, 12);
+            comboBoxSupplierName.Name = "comboBoxSupplierName";
+            comboBoxSupplierName.Size = new Size(290, 23);
+            comboBoxSupplierName.TabIndex = 4;
+            // 
             // FormSupplier
             // 
             AutoScaleDimensions = new SizeF(7F, 15F);
             AutoScaleMode = AutoScaleMode.Font;
             ClientSize = new Size(438, 122);
+            Controls.Add(comboBoxSupplierName);
             Controls.Add(buttonCancel);
             Controls.Add(buttonSave);
             Controls.Add(labelSupplier);
-            Controls.Add(textBoxSupplierName);
             Name = "FormSupplier";
             StartPosition = FormStartPosition.CenterParent;
             Text = "FormSupplier";
@@ -87,10 +89,9 @@
         }
 
         #endregion
-
-        private TextBox textBoxSupplierName;
         private Label labelSupplier;
         private Button buttonSave;
         private Button buttonCancel;
+        private ComboBox comboBoxSupplierName;
     }
 }

GasStation/Forms/FormSupplier.cs

@@ -16,12 +16,12 @@ namespace GasStation.Forms
                 try
                 {
                     var supplier = _suppliarRepository.ReadSupplierByID(value);
-                    if (supplier != null)
+                    if (supplier == null)
                     {
                         throw new InvalidDataException(nameof(supplier));
                     }
 
-                    textBoxSupplierName.Text = supplier.ProductName;
+                    comboBoxSupplierName.DataSource = supplier.ProductName;
                     _supplierId = value;
                 }
                 catch (Exception ex)
@@ -43,7 +43,7 @@ namespace GasStation.Forms
         {
             try
             {
-                if (string.IsNullOrWhiteSpace(textBoxSupplierName.Text))
+                if (comboBoxSupplierName.SelectedIndex < 1)
                 {
                     throw new Exception("Имеются незаполненые поля");
                 }
@@ -64,7 +64,7 @@ namespace GasStation.Forms
             }
         }
 
-        private Supplier CreateSupplier(int id) => Supplier.CreateSupplier(id, textBoxSupplierName.Text);
+        private Supplier CreateSupplier(int id) => Supplier.CreateSupplier(id, comboBoxSupplierName.Text);
 
         private void ButtonCancel_Click(object sender, EventArgs e) => Close();
     }

GasStation/Forms/FormSupplies.Designer.cs

@@ -0,0 +1,108 @@
+namespace GasStation.Forms
+{
+    partial class FormSupplies
+    {
+        /// <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();
+            dataGridViewData = new DataGridView();
+            panel1.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).BeginInit();
+            SuspendLayout();
+            // 
+            // panel1
+            // 
+            panel1.Controls.Add(buttonDel);
+            panel1.Controls.Add(buttonAdd);
+            panel1.Dock = DockStyle.Right;
+            panel1.Location = new Point(630, 0);
+            panel1.Name = "panel1";
+            panel1.Size = new Size(170, 450);
+            panel1.TabIndex = 1;
+            // 
+            // buttonDel
+            // 
+            buttonDel.Location = new Point(45, 296);
+            buttonDel.Name = "buttonDel";
+            buttonDel.Size = new Size(77, 73);
+            buttonDel.TabIndex = 1;
+            buttonDel.Text = "Удалить";
+            buttonDel.UseVisualStyleBackColor = true;
+            buttonDel.Click += ButtonDel_Click;
+            // 
+            // buttonAdd
+            // 
+            buttonAdd.Location = new Point(47, 41);
+            buttonAdd.Name = "buttonAdd";
+            buttonAdd.Size = new Size(75, 73);
+            buttonAdd.TabIndex = 0;
+            buttonAdd.Text = "Добавить";
+            buttonAdd.UseVisualStyleBackColor = true;
+            buttonAdd.Click += ButtonAdd_Click;
+            // 
+            // dataGridViewData
+            // 
+            dataGridViewData.AllowUserToAddRows = false;
+            dataGridViewData.AllowUserToDeleteRows = false;
+            dataGridViewData.AllowUserToResizeColumns = false;
+            dataGridViewData.AllowUserToResizeRows = false;
+            dataGridViewData.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewData.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewData.Dock = DockStyle.Fill;
+            dataGridViewData.Location = new Point(0, 0);
+            dataGridViewData.MultiSelect = false;
+            dataGridViewData.Name = "dataGridViewData";
+            dataGridViewData.ReadOnly = true;
+            dataGridViewData.RowHeadersVisible = false;
+            dataGridViewData.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
+            dataGridViewData.Size = new Size(630, 450);
+            dataGridViewData.TabIndex = 2;
+            // 
+            // FormSupplies
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(800, 450);
+            Controls.Add(dataGridViewData);
+            Controls.Add(panel1);
+            Name = "FormSupplies";
+            Load += FormSupplies_Load;
+            panel1.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridViewData).EndInit();
+            ResumeLayout(false);
+        }
+
+        #endregion
+
+        private Panel panel1;
+        private Button buttonDel;
+        private Button buttonAdd;
+        private DataGridView dataGridViewData;
+    }
+}

GasStation/Forms/FormSupplies.cs

@@ -0,0 +1,84 @@
+using GasStation.Repositories;
+using Unity;
+
+namespace GasStation.Forms
+{
+    public partial class FormSupplies : Form
+    {
+        private readonly IUnityContainer _container;
+
+        private readonly ISupplyRepository _supplyRepository;
+
+        public FormSupplies(IUnityContainer container, ISupplyRepository supplyRepository)
+        {
+            InitializeComponent();
+            _container = container ??
+                throw new ArgumentNullException(nameof(container));
+            _supplyRepository = supplyRepository ??
+                throw new ArgumentNullException(nameof(supplyRepository));
+        }
+
+        private void ButtonAdd_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                _container.Resolve<FormSupply>().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 (!TryGetIDFromSelectedRow(out var findID))
+            {
+                return;
+            }
+
+            if (MessageBox.Show("Удалить запись?", "Удаление", MessageBoxButtons.YesNo) != DialogResult.Yes)
+            {
+                return;
+            }
+
+            try
+            {
+                _supplyRepository.DeleteSupply(findID);
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка удаления", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void LoadList() => dataGridViewData.DataSource = _supplyRepository.ReadSupply();
+
+        private void FormSupplies_Load(object sender, EventArgs e)
+        {
+            try
+            {
+                LoadList();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при загрузке", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private bool TryGetIDFromSelectedRow(out int id)
+        {
+            id = 0;
+            if (dataGridViewData.SelectedRows.Count < 1)
+            {
+                MessageBox.Show("Нет выбранной записи", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return false;
+            }
+
+            id = Convert.ToInt32(dataGridViewData.SelectedRows[0].Cells["ID"].Value);
+            return true;
+        }
+    }
+}

GasStation/Forms/FormSupplies.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>

GasStation/Forms/FormSupply.Designer.cs

@@ -0,0 +1,148 @@
+namespace GasStation.Forms
+{
+    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()
+        {
+            buttonSave = new Button();
+            buttonCancel = new Button();
+            labelSupplier = new Label();
+            groupBoxSupply = new GroupBox();
+            dataGridViewSupply = new DataGridView();
+            ColumnProduct = new DataGridViewComboBoxColumn();
+            ColumnCount = new DataGridViewTextBoxColumn();
+            comboBoxSupplier = new ComboBox();
+            groupBoxSupply.SuspendLayout();
+            ((System.ComponentModel.ISupportInitialize)dataGridViewSupply).BeginInit();
+            SuspendLayout();
+            // 
+            // buttonSave
+            // 
+            buttonSave.Anchor = AnchorStyles.Bottom | AnchorStyles.Left;
+            buttonSave.Location = new Point(21, 290);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(89, 24);
+            buttonSave.TabIndex = 1;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Anchor = AnchorStyles.Bottom | AnchorStyles.Right;
+            buttonCancel.Location = new Point(221, 290);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(92, 24);
+            buttonCancel.TabIndex = 2;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
+            // 
+            // labelSupplier
+            // 
+            labelSupplier.AutoSize = true;
+            labelSupplier.Location = new Point(21, 23);
+            labelSupplier.Name = "labelSupplier";
+            labelSupplier.Size = new Size(70, 15);
+            labelSupplier.TabIndex = 5;
+            labelSupplier.Text = "Поставщик";
+            // 
+            // groupBoxSupply
+            // 
+            groupBoxSupply.Anchor = AnchorStyles.Top | AnchorStyles.Bottom | AnchorStyles.Left | AnchorStyles.Right;
+            groupBoxSupply.Controls.Add(dataGridViewSupply);
+            groupBoxSupply.Location = new Point(21, 62);
+            groupBoxSupply.Name = "groupBoxSupply";
+            groupBoxSupply.Size = new Size(292, 185);
+            groupBoxSupply.TabIndex = 6;
+            groupBoxSupply.TabStop = false;
+            groupBoxSupply.Text = "Поставки";
+            // 
+            // dataGridViewSupply
+            // 
+            dataGridViewSupply.AllowUserToResizeColumns = false;
+            dataGridViewSupply.AllowUserToResizeRows = false;
+            dataGridViewSupply.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
+            dataGridViewSupply.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            dataGridViewSupply.Columns.AddRange(new DataGridViewColumn[] { ColumnProduct, ColumnCount });
+            dataGridViewSupply.Dock = DockStyle.Fill;
+            dataGridViewSupply.Location = new Point(3, 19);
+            dataGridViewSupply.Name = "dataGridViewSupply";
+            dataGridViewSupply.RowHeadersVisible = false;
+            dataGridViewSupply.Size = new Size(286, 163);
+            dataGridViewSupply.TabIndex = 0;
+            // 
+            // ColumnProduct
+            // 
+            ColumnProduct.HeaderText = "Товар";
+            ColumnProduct.Name = "ColumnProduct";
+            ColumnProduct.Resizable = DataGridViewTriState.True;
+            ColumnProduct.SortMode = DataGridViewColumnSortMode.Automatic;
+            // 
+            // ColumnCount
+            // 
+            ColumnCount.HeaderText = "Кол-во";
+            ColumnCount.Name = "ColumnCount";
+            // 
+            // comboBoxSupplier
+            // 
+            comboBoxSupplier.FormattingEnabled = true;
+            comboBoxSupplier.Location = new Point(97, 23);
+            comboBoxSupplier.Name = "comboBoxSupplier";
+            comboBoxSupplier.Size = new Size(216, 23);
+            comboBoxSupplier.TabIndex = 7;
+            // 
+            // FormSupply
+            // 
+            AutoScaleDimensions = new SizeF(7F, 15F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(435, 380);
+            Controls.Add(comboBoxSupplier);
+            Controls.Add(groupBoxSupply);
+            Controls.Add(labelSupplier);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Name = "FormSupply";
+            Text = "Поставки";
+            groupBoxSupply.ResumeLayout(false);
+            ((System.ComponentModel.ISupportInitialize)dataGridViewSupply).EndInit();
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private Button buttonSave;
+        private Button buttonCancel;
+        private Label labelSupplier;
+        private GroupBox groupBoxSupply;
+        private DataGridView dataGridViewSupply;
+        private ComboBox comboBoxSupplier;
+        private DataGridViewComboBoxColumn ColumnProduct;
+        private DataGridViewTextBoxColumn ColumnCount;
+    }
+}

GasStation/Forms/FormSupply.cs

@@ -0,0 +1,63 @@
+using GasStation.Repositories;
+using GasStation.Entities;
+
+namespace GasStation.Forms
+{
+    public partial class FormSupply : Form
+    {
+        private readonly ISupplyRepository _supplyRepository;
+
+        public FormSupply(ISupplyRepository supplyRepository, ISupplierRepository supplierRepository, IProductRepository productRepository)
+        {
+            InitializeComponent();
+            _supplyRepository = supplyRepository ??
+                throw new ArgumentNullException(nameof(supplyRepository));
+
+            comboBoxSupplier.DataSource = supplierRepository.ReadSupplier();
+            comboBoxSupplier.DisplayMember = "SupplierName";
+            comboBoxSupplier.ValueMember = "ID";
+
+            ColumnProduct.DataSource = productRepository.ReadProduct();
+            ColumnProduct.DisplayMember = "Cost";
+            ColumnProduct.ValueMember = "ID";
+        }
+
+        private void ButtonSave_Click(object sender, EventArgs e)
+        {
+            try
+            {
+                if (dataGridViewSupply.RowCount < 1 ||
+                    comboBoxSupplier.SelectedIndex < 0)
+                {
+                    throw new Exception("Имеются незаполненые поля");
+                }
+
+                _supplyRepository.CreateSupply(Supply.CreateSupply(0, (int)comboBoxSupplier.SelectedValue!, 0, CreateListSellingFromDataGrid()));
+
+                Close();
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(ex.Message, "Ошибка при сохранении", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+        }
+
+        private void ButtonCancel_Click(object sender, EventArgs e) => Close();
+
+        private List<SupplySupply> CreateListSellingFromDataGrid()
+        {
+            var list = new List<SupplySupply>();
+            foreach (DataGridViewRow row in dataGridViewSupply.Rows)
+            {
+                if (row.Cells["ColumnProduct"].Value == null || row.Cells["ColumnCount"].Value == null)
+                {
+                    continue;
+                }
+                list.Add(SupplySupply.CreateSupply(0, Convert.ToInt32(row.Cells["ColumnCount"].Value))); 
+            }
+
+            return list;
+        }
+    }
+}

GasStation/Forms/FormSupply.resx

@@ -0,0 +1,132 @@
+<?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="ColumnCount.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="ColumnProduct.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+  <metadata name="ColumnCount.UserAddedColumn" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
+    <value>True</value>
+  </metadata>
+</root>

GasStation/Program.cs

@@ -27,6 +27,7 @@ internal static class Program
         container.RegisterType<ISellingRepository,SellingRepository>(); 
         container.RegisterType<ISupplierRepository, SupplierRepository>();
         container.RegisterType<ISupplyRepository, SupplyRepository>();
+        container.RegisterType<IProductRepository, ProductRepository>();
 
         return container;
     }

GasStation/Repositories/IProductRepository.cs

@@ -0,0 +1,16 @@
+using GasStation.Entities;
+
+namespace GasStation.Repositories;
+
+public interface IProductRepository
+{
+    IEnumerable<Product> ReadProduct();
+
+    Product ReadProductByID(int id);
+
+    void CreateProduct(Product product);
+
+    void UpdateProduct(Product product);
+
+    void DeleteProduct(int id);
+}

GasStation/Repositories/ISupplyRepository.cs

@@ -6,7 +6,7 @@ public interface ISupplyRepository
 {
     IEnumerable<Supply> ReadSupply(DateTime? supplyDate = null, int? supplierID = null, int? productID = null);
 
-    void CreateSelling(Supply supply);
+    void CreateSupply(Supply supply);
 
-    void DeleteSelling(int id);
+    void DeleteSupply(int id);
 }

GasStation/Repositories/Implementations/ProductRepository.cs

@@ -0,0 +1,29 @@
+using GasStation.Entities;
+using GasStation.Entities.Enums;
+
+namespace GasStation.Repositories.Implementations;
+
+public class ProductRepository : IProductRepository
+{
+    public void CreateProduct(Product product)
+    {
+    }
+
+    public void DeleteProduct(int id)
+    {
+    }
+
+    public IEnumerable<Product> ReadProduct()
+    {
+        return [];
+    }
+
+    public Product ReadProductByID(int id)
+    {
+        return Product.CreateProduct(0, 0, Gasmen.None, ProductType.None);
+    }
+
+    public void UpdateProduct(Product product)
+    {
+    }
+}

GasStation/Repositories/Implementations/SupplyRepository.cs

@@ -4,11 +4,11 @@ namespace GasStation.Repositories.Implementations;
 
 public class SupplyRepository : ISupplyRepository
 {
-    public void CreateSelling(Supply supply)
+    public void CreateSupply(Supply supply)
     {
     }
 
-    public void DeleteSelling(int id)
+    public void DeleteSupply(int id)
     {
     }