Добавлена работа с объявлениями

WebsiteForPlacingAds/WebsiteForPlacingAds/AbstractDatabase.cs

@@ -0,0 +1,39 @@
+using Npgsql;
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WebsiteForPlacingAds
+{
+    public abstract class AbstractDatabase
+    {
+        private NpgsqlConnection connection;
+
+        public AbstractDatabase(string connectionString)
+        {
+            connection = new NpgsqlConnection(connectionString);
+        }
+
+        protected DataTable ExecuteQuery(string query)
+        {
+            connection.Open();
+            NpgsqlCommand command = new NpgsqlCommand(query, connection);
+            NpgsqlDataAdapter adapter = new NpgsqlDataAdapter(command);
+            DataTable result = new DataTable();
+            adapter.Fill(result);
+            connection.Close();
+            return result;
+        }
+
+        protected void ExecuteNonQuery(string query)
+        {
+            connection.Open();
+            NpgsqlCommand command = new NpgsqlCommand(query, connection);
+            command.ExecuteNonQuery();
+            connection.Close();
+        }
+    }
+}

WebsiteForPlacingAds/WebsiteForPlacingAds/ConnectionSingleton.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WebsiteForPlacingAds
+{
+    public class ConnectionSingleton
+    {
+        private static PostgreSqlDatabase postgreSqlDatabase;
+
+        private ConnectionSingleton()
+        { }
+
+        public static PostgreSqlDatabase getPostgreSqlDatabase(string connectionString)
+        {
+            if (postgreSqlDatabase == null)
+                postgreSqlDatabase = new PostgreSqlDatabase(connectionString);
+            return postgreSqlDatabase;
+        }
+    }
+}

WebsiteForPlacingAds/WebsiteForPlacingAds/CreateAdsForm.Designer.cs

@@ -0,0 +1,218 @@
+namespace WebsiteForPlacingAds
+{
+    partial class CreateAdsForm
+    {
+        /// <summary>
+        ///  Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        ///  Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        ///  Required method for Designer support - do not modify
+        ///  the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.button1 = new System.Windows.Forms.Button();
+            this.labelHeading = new System.Windows.Forms.Label();
+            this.textBoxHeading = new System.Windows.Forms.TextBox();
+            this.textBoxPrice = new System.Windows.Forms.TextBox();
+            this.labelPrice = new System.Windows.Forms.Label();
+            this.textBoxDate = new System.Windows.Forms.TextBox();
+            this.labelDate = new System.Windows.Forms.Label();
+            this.labelSubcategory = new System.Windows.Forms.Label();
+            this.labelCategory = new System.Windows.Forms.Label();
+            this.textBoxStatus = new System.Windows.Forms.TextBox();
+            this.labelStatus = new System.Windows.Forms.Label();
+            this.labelClient = new System.Windows.Forms.Label();
+            this.comboBoxSubcategory = new System.Windows.Forms.ComboBox();
+            this.comboBoxCategory = new System.Windows.Forms.ComboBox();
+            this.comboBoxClient = new System.Windows.Forms.ComboBox();
+            this.SuspendLayout();
+            // 
+            // button1
+            // 
+            this.button1.Location = new System.Drawing.Point(49, 456);
+            this.button1.Name = "button1";
+            this.button1.Size = new System.Drawing.Size(125, 67);
+            this.button1.TabIndex = 0;
+            this.button1.Text = "Разместить объявление";
+            this.button1.UseVisualStyleBackColor = true;
+            this.button1.Click += new System.EventHandler(this.button1_Click);
+            // 
+            // labelHeading
+            // 
+            this.labelHeading.AutoSize = true;
+            this.labelHeading.Location = new System.Drawing.Point(49, 11);
+            this.labelHeading.Name = "labelHeading";
+            this.labelHeading.Size = new System.Drawing.Size(81, 20);
+            this.labelHeading.TabIndex = 1;
+            this.labelHeading.Text = "Заголовок";
+            // 
+            // textBoxHeading
+            // 
+            this.textBoxHeading.Location = new System.Drawing.Point(49, 34);
+            this.textBoxHeading.Name = "textBoxHeading";
+            this.textBoxHeading.Size = new System.Drawing.Size(125, 27);
+            this.textBoxHeading.TabIndex = 2;
+            // 
+            // textBoxPrice
+            // 
+            this.textBoxPrice.Location = new System.Drawing.Point(49, 96);
+            this.textBoxPrice.Name = "textBoxPrice";
+            this.textBoxPrice.Size = new System.Drawing.Size(125, 27);
+            this.textBoxPrice.TabIndex = 4;
+            // 
+            // labelPrice
+            // 
+            this.labelPrice.AutoSize = true;
+            this.labelPrice.Location = new System.Drawing.Point(49, 73);
+            this.labelPrice.Name = "labelPrice";
+            this.labelPrice.Size = new System.Drawing.Size(45, 20);
+            this.labelPrice.TabIndex = 3;
+            this.labelPrice.Text = "Цена";
+            // 
+            // textBoxDate
+            // 
+            this.textBoxDate.Location = new System.Drawing.Point(49, 158);
+            this.textBoxDate.Name = "textBoxDate";
+            this.textBoxDate.Size = new System.Drawing.Size(125, 27);
+            this.textBoxDate.TabIndex = 6;
+            // 
+            // labelDate
+            // 
+            this.labelDate.AutoSize = true;
+            this.labelDate.Location = new System.Drawing.Point(49, 135);
+            this.labelDate.Name = "labelDate";
+            this.labelDate.Size = new System.Drawing.Size(134, 20);
+            this.labelDate.TabIndex = 5;
+            this.labelDate.Text = "Дата размещения";
+            // 
+            // labelSubcategory
+            // 
+            this.labelSubcategory.AutoSize = true;
+            this.labelSubcategory.Location = new System.Drawing.Point(49, 390);
+            this.labelSubcategory.Name = "labelSubcategory";
+            this.labelSubcategory.Size = new System.Drawing.Size(107, 20);
+            this.labelSubcategory.TabIndex = 11;
+            this.labelSubcategory.Text = "Подкатегория";
+            // 
+            // labelCategory
+            // 
+            this.labelCategory.AutoSize = true;
+            this.labelCategory.Location = new System.Drawing.Point(49, 328);
+            this.labelCategory.Name = "labelCategory";
+            this.labelCategory.Size = new System.Drawing.Size(81, 20);
+            this.labelCategory.TabIndex = 9;
+            this.labelCategory.Text = "Категория";
+            // 
+            // textBoxStatus
+            // 
+            this.textBoxStatus.Location = new System.Drawing.Point(49, 221);
+            this.textBoxStatus.Name = "textBoxStatus";
+            this.textBoxStatus.Size = new System.Drawing.Size(125, 27);
+            this.textBoxStatus.TabIndex = 8;
+            // 
+            // labelStatus
+            // 
+            this.labelStatus.AutoSize = true;
+            this.labelStatus.Location = new System.Drawing.Point(49, 198);
+            this.labelStatus.Name = "labelStatus";
+            this.labelStatus.Size = new System.Drawing.Size(52, 20);
+            this.labelStatus.TabIndex = 7;
+            this.labelStatus.Text = "Статус";
+            // 
+            // labelClient
+            // 
+            this.labelClient.AutoSize = true;
+            this.labelClient.Location = new System.Drawing.Point(49, 261);
+            this.labelClient.Name = "labelClient";
+            this.labelClient.Size = new System.Drawing.Size(58, 20);
+            this.labelClient.TabIndex = 13;
+            this.labelClient.Text = "Клиент";
+            // 
+            // comboBoxSubcategory
+            // 
+            this.comboBoxSubcategory.FormattingEnabled = true;
+            this.comboBoxSubcategory.Location = new System.Drawing.Point(49, 413);
+            this.comboBoxSubcategory.Name = "comboBoxSubcategory";
+            this.comboBoxSubcategory.Size = new System.Drawing.Size(125, 28);
+            this.comboBoxSubcategory.TabIndex = 15;
+            // 
+            // comboBoxCategory
+            // 
+            this.comboBoxCategory.FormattingEnabled = true;
+            this.comboBoxCategory.Location = new System.Drawing.Point(49, 351);
+            this.comboBoxCategory.Name = "comboBoxCategory";
+            this.comboBoxCategory.Size = new System.Drawing.Size(125, 28);
+            this.comboBoxCategory.TabIndex = 16;
+            // 
+            // comboBoxClient
+            // 
+            this.comboBoxClient.FormattingEnabled = true;
+            this.comboBoxClient.Location = new System.Drawing.Point(49, 284);
+            this.comboBoxClient.Name = "comboBoxClient";
+            this.comboBoxClient.Size = new System.Drawing.Size(125, 28);
+            this.comboBoxClient.TabIndex = 17;
+            // 
+            // CreateAdsForm
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(228, 558);
+            this.Controls.Add(this.comboBoxClient);
+            this.Controls.Add(this.comboBoxCategory);
+            this.Controls.Add(this.comboBoxSubcategory);
+            this.Controls.Add(this.labelClient);
+            this.Controls.Add(this.labelSubcategory);
+            this.Controls.Add(this.labelCategory);
+            this.Controls.Add(this.textBoxStatus);
+            this.Controls.Add(this.labelStatus);
+            this.Controls.Add(this.textBoxDate);
+            this.Controls.Add(this.labelDate);
+            this.Controls.Add(this.textBoxPrice);
+            this.Controls.Add(this.labelPrice);
+            this.Controls.Add(this.textBoxHeading);
+            this.Controls.Add(this.labelHeading);
+            this.Controls.Add(this.button1);
+            this.Name = "CreateAdsForm";
+            this.Text = "Объявления";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private Button button1;
+        private Label labelHeading;
+        private TextBox textBoxHeading;
+        private TextBox textBoxPrice;
+        private Label labelPrice;
+        private TextBox textBoxDate;
+        private Label labelDate;
+        private Label labelSubcategory;
+        private Label labelCategory;
+        private TextBox textBoxStatus;
+        private Label labelStatus;
+        private Label labelClient;
+        private ComboBox comboBoxSubcategory;
+        private ComboBox comboBoxCategory;
+        private ComboBox comboBoxClient;
+    }
+}

WebsiteForPlacingAds/WebsiteForPlacingAds/CreateAdsForm.cs

@@ -0,0 +1,49 @@
+using System.Data;
+
+namespace WebsiteForPlacingAds
+{
+    public partial class CreateAdsForm : Form
+    {
+        PostgreSqlDatabase psd;
+        public CreateAdsForm(PostgreSqlDatabase psd)
+        {
+            InitializeComponent();
+            this.psd = psd;
+            FillComboBox();
+        }
+
+        private void button1_Click(object sender, EventArgs e)
+        {
+            string[] client = comboBoxClient.SelectedItem.ToString().Split(" ");
+            string[] category = comboBoxCategory.SelectedItem.ToString().Split(" ");
+            string[] subcategory = comboBoxSubcategory.SelectedItem.ToString().Split(" ");
+
+            psd.addAd(textBoxHeading.Text, int.Parse(textBoxPrice.Text), textBoxDate.Text, textBoxStatus.Text, int.Parse(client[0]), int.Parse(category[0]), int.Parse(subcategory[0]));
+        }
+
+        private void FillComboBox()
+        {
+            DataTable result = psd.getAllCategories();
+            string[] id_names = new string[result.Rows.Count];
+            for (int i = 0; i < result.Rows.Count; i++)
+            {
+                id_names[i] = result.Rows[i]["category_id"].ToString() + " " + (string)result.Rows[i]["name"];
+                comboBoxCategory.Items.Add(id_names[i]);
+            }
+            result = psd.getAllSubcategories();
+            id_names = new string[result.Rows.Count];
+            for (int i = 0; i < result.Rows.Count; i++)
+            {
+                id_names[i] = result.Rows[i]["subcategory_id"].ToString() + " " + (string)result.Rows[i]["name"];
+                comboBoxSubcategory.Items.Add(id_names[i]);
+            }
+            result = psd.getAllClients();
+            string[] id_names_surnames = new string[result.Rows.Count];
+            for (int i = 0; i < result.Rows.Count; i++)
+            {
+                id_names_surnames[i] = result.Rows[i]["client_id"].ToString() + " " +(string)result.Rows[i]["name"] + " " + (string)result.Rows[i]["surname"];
+                comboBoxClient.Items.Add(id_names_surnames[i]);
+            }
+        }
+    }
+}

WebsiteForPlacingAds/WebsiteForPlacingAds/CreateAdsForm.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

WebsiteForPlacingAds/WebsiteForPlacingAds/DeleteAdsForm.Designer.cs

@@ -0,0 +1,83 @@
+namespace WebsiteForPlacingAds
+{
+    partial class DeleteAdsForm
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.label1 = new System.Windows.Forms.Label();
+            this.button1 = new System.Windows.Forms.Button();
+            this.comboBox1 = new System.Windows.Forms.ComboBox();
+            this.SuspendLayout();
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(40, 23);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(338, 20);
+            this.label1.TabIndex = 0;
+            this.label1.Text = "Выберите объявление, которое хотите удалить";
+            // 
+            // button1
+            // 
+            this.button1.Location = new System.Drawing.Point(136, 117);
+            this.button1.Name = "button1";
+            this.button1.Size = new System.Drawing.Size(132, 55);
+            this.button1.TabIndex = 1;
+            this.button1.Text = "Удалить";
+            this.button1.UseVisualStyleBackColor = true;
+            // 
+            // comboBox1
+            // 
+            this.comboBox1.FormattingEnabled = true;
+            this.comboBox1.Location = new System.Drawing.Point(40, 64);
+            this.comboBox1.Name = "comboBox1";
+            this.comboBox1.Size = new System.Drawing.Size(338, 28);
+            this.comboBox1.TabIndex = 2;
+            // 
+            // UpdateAdsForm
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(415, 216);
+            this.Controls.Add(this.comboBox1);
+            this.Controls.Add(this.button1);
+            this.Controls.Add(this.label1);
+            this.Name = "UpdateAdsForm";
+            this.Text = "UpdateAdsForm";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private Label label1;
+        private Button button1;
+        private ComboBox comboBox1;
+    }
+}

WebsiteForPlacingAds/WebsiteForPlacingAds/DeleteAdsForm.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace WebsiteForPlacingAds
+{
+    public partial class DeleteAdsForm : Form
+    {
+        public DeleteAdsForm()
+        {
+            InitializeComponent();
+        }
+    }
+}

WebsiteForPlacingAds/WebsiteForPlacingAds/DeleteAdsForm.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

WebsiteForPlacingAds/WebsiteForPlacingAds/Form1.cs

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

WebsiteForPlacingAds/WebsiteForPlacingAds/Form1.resx

@@ -1,120 +0,0 @@
-<?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>

WebsiteForPlacingAds/WebsiteForPlacingAds/ListAdsForm.Designer.cs

@@ -0,0 +1,72 @@
+namespace WebsiteForPlacingAds
+{
+    partial class ListAdsForm
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.label1 = new System.Windows.Forms.Label();
+            this.label2 = new System.Windows.Forms.Label();
+            this.SuspendLayout();
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(12, 9);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(149, 20);
+            this.label1.TabIndex = 0;
+            this.label1.Text = "Список объявлений";
+            // 
+            // label2
+            // 
+            this.label2.AutoSize = true;
+            this.label2.Location = new System.Drawing.Point(12, 47);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(0, 20);
+            this.label2.TabIndex = 1;
+            this.label2.Click += new System.EventHandler(this.label2_Click);
+            // 
+            // ListAdsForm
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.label2);
+            this.Controls.Add(this.label1);
+            this.Name = "ListAdsForm";
+            this.Text = "ListAdsForm";
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private Label label1;
+        private Label label2;
+    }
+}

WebsiteForPlacingAds/WebsiteForPlacingAds/ListAdsForm.cs

@@ -0,0 +1,26 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace WebsiteForPlacingAds
+{
+    public partial class ListAdsForm : Form
+    {
+        public ListAdsForm()
+        {
+            InitializeComponent();
+        }
+
+        private void label2_Click(object sender, EventArgs e)
+        {
+            string s = "Первое объявление\nВторое объявление";
+            label2.Text = s;
+        }
+    }
+}

WebsiteForPlacingAds/WebsiteForPlacingAds/ListAdsForm.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

WebsiteForPlacingAds/WebsiteForPlacingAds/MainForm.Designer.cs

@@ -0,0 +1,256 @@
+namespace WebsiteForPlacingAds
+{
+    partial class MainForm
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.menuStrip1 = new System.Windows.Forms.MenuStrip();
+            this.клиентыToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.объявленияToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.категорииToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.подкатегорииToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.создатьКлиентаToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.удалитьКлиентаToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.изменитьДанныеКлиентаToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.создатьОбъявлениеToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.списокКлиентвToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.удалитьОбъявлениеToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.изменитьОбъявлениеэToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.списокОбъявленийToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.создатьКатегориюToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.удалитьКатегориюToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.изменитьКатегориюToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.списокКатегорийToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.создатьПодкатеориюToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.удалитьПодкатегориюToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.изменитьПодкатегориюToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.списокПодкатегоийToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            this.menuStrip1.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // menuStrip1
+            // 
+            this.menuStrip1.ImageScalingSize = new System.Drawing.Size(20, 20);
+            this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.клиентыToolStripMenuItem,
+            this.объявленияToolStripMenuItem,
+            this.категорииToolStripMenuItem,
+            this.подкатегорииToolStripMenuItem});
+            this.menuStrip1.Location = new System.Drawing.Point(0, 0);
+            this.menuStrip1.Name = "menuStrip1";
+            this.menuStrip1.Size = new System.Drawing.Size(800, 28);
+            this.menuStrip1.TabIndex = 0;
+            this.menuStrip1.Text = "menuStrip1";
+            // 
+            // клиентыToolStripMenuItem
+            // 
+            this.клиентыToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.создатьКлиентаToolStripMenuItem,
+            this.удалитьКлиентаToolStripMenuItem,
+            this.изменитьДанныеКлиентаToolStripMenuItem,
+            this.списокКлиентвToolStripMenuItem});
+            this.клиентыToolStripMenuItem.Name = "клиентыToolStripMenuItem";
+            this.клиентыToolStripMenuItem.Size = new System.Drawing.Size(83, 24);
+            this.клиентыToolStripMenuItem.Text = "Клиенты";
+            // 
+            // объявленияToolStripMenuItem
+            // 
+            this.объявленияToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.создатьОбъявлениеToolStripMenuItem,
+            this.удалитьОбъявлениеToolStripMenuItem,
+            this.изменитьОбъявлениеэToolStripMenuItem,
+            this.списокОбъявленийToolStripMenuItem});
+            this.объявленияToolStripMenuItem.Name = "объявленияToolStripMenuItem";
+            this.объявленияToolStripMenuItem.Size = new System.Drawing.Size(110, 24);
+            this.объявленияToolStripMenuItem.Text = "Объявления";
+            // 
+            // категорииToolStripMenuItem
+            // 
+            this.категорииToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.создатьКатегориюToolStripMenuItem,
+            this.удалитьКатегориюToolStripMenuItem,
+            this.изменитьКатегориюToolStripMenuItem,
+            this.списокКатегорийToolStripMenuItem});
+            this.категорииToolStripMenuItem.Name = "категорииToolStripMenuItem";
+            this.категорииToolStripMenuItem.Size = new System.Drawing.Size(96, 24);
+            this.категорииToolStripMenuItem.Text = "Категории";
+            // 
+            // подкатегорииToolStripMenuItem
+            // 
+            this.подкатегорииToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
+            this.создатьПодкатеориюToolStripMenuItem,
+            this.удалитьПодкатегориюToolStripMenuItem,
+            this.изменитьПодкатегориюToolStripMenuItem,
+            this.списокПодкатегоийToolStripMenuItem});
+            this.подкатегорииToolStripMenuItem.Name = "подкатегорииToolStripMenuItem";
+            this.подкатегорииToolStripMenuItem.Size = new System.Drawing.Size(122, 24);
+            this.подкатегорииToolStripMenuItem.Text = "Подкатегории";
+            // 
+            // создатьКлиентаToolStripMenuItem
+            // 
+            this.создатьКлиентаToolStripMenuItem.Name = "создатьКлиентаToolStripMenuItem";
+            this.создатьКлиентаToolStripMenuItem.Size = new System.Drawing.Size(277, 26);
+            this.создатьКлиентаToolStripMenuItem.Text = "Создать клиента";
+            // 
+            // удалитьКлиентаToolStripMenuItem
+            // 
+            this.удалитьКлиентаToolStripMenuItem.Name = "удалитьКлиентаToolStripMenuItem";
+            this.удалитьКлиентаToolStripMenuItem.Size = new System.Drawing.Size(277, 26);
+            this.удалитьКлиентаToolStripMenuItem.Text = "Удалить клиента";
+            // 
+            // изменитьДанныеКлиентаToolStripMenuItem
+            // 
+            this.изменитьДанныеКлиентаToolStripMenuItem.Name = "изменитьДанныеКлиентаToolStripMenuItem";
+            this.изменитьДанныеКлиентаToolStripMenuItem.Size = new System.Drawing.Size(277, 26);
+            this.изменитьДанныеКлиентаToolStripMenuItem.Text = "Изменить данные клиента";
+            // 
+            // создатьОбъявлениеToolStripMenuItem
+            // 
+            this.создатьОбъявлениеToolStripMenuItem.Name = "создатьОбъявлениеToolStripMenuItem";
+            this.создатьОбъявлениеToolStripMenuItem.Size = new System.Drawing.Size(250, 26);
+            this.создатьОбъявлениеToolStripMenuItem.Text = "Создать объявление";
+            this.создатьОбъявлениеToolStripMenuItem.Click += new System.EventHandler(this.создатьОбъявлениеToolStripMenuItem_Click);
+            // 
+            // списокКлиентвToolStripMenuItem
+            // 
+            this.списокКлиентвToolStripMenuItem.Name = "списокКлиентвToolStripMenuItem";
+            this.списокКлиентвToolStripMenuItem.Size = new System.Drawing.Size(277, 26);
+            this.списокКлиентвToolStripMenuItem.Text = "Список клиентов";
+            this.списокКлиентвToolStripMenuItem.Click += new System.EventHandler(this.списокКлиентвToolStripMenuItem_Click);
+            // 
+            // удалитьОбъявлениеToolStripMenuItem
+            // 
+            this.удалитьОбъявлениеToolStripMenuItem.Name = "удалитьОбъявлениеToolStripMenuItem";
+            this.удалитьОбъявлениеToolStripMenuItem.Size = new System.Drawing.Size(250, 26);
+            this.удалитьОбъявлениеToolStripMenuItem.Text = "Удалить объявление";
+            this.удалитьОбъявлениеToolStripMenuItem.Click += new System.EventHandler(this.удалитьОбъявлениеToolStripMenuItem_Click);
+            // 
+            // изменитьОбъявлениеэToolStripMenuItem
+            // 
+            this.изменитьОбъявлениеэToolStripMenuItem.Name = "изменитьОбъявлениеэToolStripMenuItem";
+            this.изменитьОбъявлениеэToolStripMenuItem.Size = new System.Drawing.Size(250, 26);
+            this.изменитьОбъявлениеэToolStripMenuItem.Text = "Изменить объявление";
+            this.изменитьОбъявлениеэToolStripMenuItem.Click += new System.EventHandler(this.изменитьОбъявлениеэToolStripMenuItem_Click);
+            // 
+            // списокОбъявленийToolStripMenuItem
+            // 
+            this.списокОбъявленийToolStripMenuItem.Name = "списокОбъявленийToolStripMenuItem";
+            this.списокОбъявленийToolStripMenuItem.Size = new System.Drawing.Size(250, 26);
+            this.списокОбъявленийToolStripMenuItem.Text = "Список объявлений";
+            this.списокОбъявленийToolStripMenuItem.Click += new System.EventHandler(this.списокОбъявленийToolStripMenuItem_Click);
+            // 
+            // создатьКатегориюToolStripMenuItem
+            // 
+            this.создатьКатегориюToolStripMenuItem.Name = "создатьКатегориюToolStripMenuItem";
+            this.создатьКатегориюToolStripMenuItem.Size = new System.Drawing.Size(239, 26);
+            this.создатьКатегориюToolStripMenuItem.Text = "Создать категорию";
+            this.создатьКатегориюToolStripMenuItem.Click += new System.EventHandler(this.создатьКатегориюToolStripMenuItem_Click);
+            // 
+            // удалитьКатегориюToolStripMenuItem
+            // 
+            this.удалитьКатегориюToolStripMenuItem.Name = "удалитьКатегориюToolStripMenuItem";
+            this.удалитьКатегориюToolStripMenuItem.Size = new System.Drawing.Size(239, 26);
+            this.удалитьКатегориюToolStripMenuItem.Text = "Удалить категорию";
+            this.удалитьКатегориюToolStripMenuItem.Click += new System.EventHandler(this.удалитьКатегориюToolStripMenuItem_Click);
+            // 
+            // изменитьКатегориюToolStripMenuItem
+            // 
+            this.изменитьКатегориюToolStripMenuItem.Name = "изменитьКатегориюToolStripMenuItem";
+            this.изменитьКатегориюToolStripMenuItem.Size = new System.Drawing.Size(239, 26);
+            this.изменитьКатегориюToolStripMenuItem.Text = "Изменить категорию";
+            // 
+            // списокКатегорийToolStripMenuItem
+            // 
+            this.списокКатегорийToolStripMenuItem.Name = "списокКатегорийToolStripMenuItem";
+            this.списокКатегорийToolStripMenuItem.Size = new System.Drawing.Size(239, 26);
+            this.списокКатегорийToolStripMenuItem.Text = "Список категорий";
+            // 
+            // создатьПодкатеориюToolStripMenuItem
+            // 
+            this.создатьПодкатеориюToolStripMenuItem.Name = "создатьПодкатеориюToolStripMenuItem";
+            this.создатьПодкатеориюToolStripMenuItem.Size = new System.Drawing.Size(265, 26);
+            this.создатьПодкатеориюToolStripMenuItem.Text = "Создать подкатегорию";
+            // 
+            // удалитьПодкатегориюToolStripMenuItem
+            // 
+            this.удалитьПодкатегориюToolStripMenuItem.Name = "удалитьПодкатегориюToolStripMenuItem";
+            this.удалитьПодкатегориюToolStripMenuItem.Size = new System.Drawing.Size(265, 26);
+            this.удалитьПодкатегориюToolStripMenuItem.Text = "Удалить подкатегорию";
+            // 
+            // изменитьПодкатегориюToolStripMenuItem
+            // 
+            this.изменитьПодкатегориюToolStripMenuItem.Name = "изменитьПодкатегориюToolStripMenuItem";
+            this.изменитьПодкатегориюToolStripMenuItem.Size = new System.Drawing.Size(265, 26);
+            this.изменитьПодкатегориюToolStripMenuItem.Text = "Изменить подкатегорию";
+            // 
+            // списокПодкатегоийToolStripMenuItem
+            // 
+            this.списокПодкатегоийToolStripMenuItem.Name = "списокПодкатегоийToolStripMenuItem";
+            this.списокПодкатегоийToolStripMenuItem.Size = new System.Drawing.Size(265, 26);
+            this.списокПодкатегоийToolStripMenuItem.Text = "Список подкатегорий";
+            // 
+            // MainForm
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(800, 450);
+            this.Controls.Add(this.menuStrip1);
+            this.MainMenuStrip = this.menuStrip1;
+            this.Name = "MainForm";
+            this.Text = "MainForm";
+            this.menuStrip1.ResumeLayout(false);
+            this.menuStrip1.PerformLayout();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private MenuStrip menuStrip1;
+        private ToolStripMenuItem клиентыToolStripMenuItem;
+        private ToolStripMenuItem создатьКлиентаToolStripMenuItem;
+        private ToolStripMenuItem удалитьКлиентаToolStripMenuItem;
+        private ToolStripMenuItem изменитьДанныеКлиентаToolStripMenuItem;
+        private ToolStripMenuItem списокКлиентвToolStripMenuItem;
+        private ToolStripMenuItem объявленияToolStripMenuItem;
+        private ToolStripMenuItem создатьОбъявлениеToolStripMenuItem;
+        private ToolStripMenuItem категорииToolStripMenuItem;
+        private ToolStripMenuItem подкатегорииToolStripMenuItem;
+        private ToolStripMenuItem удалитьОбъявлениеToolStripMenuItem;
+        private ToolStripMenuItem изменитьОбъявлениеэToolStripMenuItem;
+        private ToolStripMenuItem списокОбъявленийToolStripMenuItem;
+        private ToolStripMenuItem создатьКатегориюToolStripMenuItem;
+        private ToolStripMenuItem удалитьКатегориюToolStripMenuItem;
+        private ToolStripMenuItem изменитьКатегориюToolStripMenuItem;
+        private ToolStripMenuItem списокКатегорийToolStripMenuItem;
+        private ToolStripMenuItem создатьПодкатеориюToolStripMenuItem;
+        private ToolStripMenuItem удалитьПодкатегориюToolStripMenuItem;
+        private ToolStripMenuItem изменитьПодкатегориюToolStripMenuItem;
+        private ToolStripMenuItem списокПодкатегоийToolStripMenuItem;
+    }
+}

WebsiteForPlacingAds/WebsiteForPlacingAds/MainForm.cs

@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace WebsiteForPlacingAds
+{
+    public partial class MainForm : Form
+    {
+        PostgreSqlDatabase psd;
+        public MainForm()
+        {
+            InitializeComponent();
+            psd = new PostgreSqlDatabase("Server=localhost;Port=5432;User Id=postgres;Password=aswdqq;Database=alina_refactor;");
+        }
+
+        private void списокКлиентвToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+
+        }
+
+        private void создатьКатегориюToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            
+        }
+
+        private void удалитьКатегориюToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+
+        }
+
+        private void создатьОбъявлениеToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            CreateAdsForm caf = new CreateAdsForm(psd);
+            caf.Show();
+        }
+
+        private void удалитьОбъявлениеToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            UpdateAdsForm daf = new UpdateAdsForm();
+            daf.Show();
+        }
+
+        private void изменитьОбъявлениеэToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            DeleteAdsForm uaf = new DeleteAdsForm();
+            uaf.Show();
+        }
+
+        private void списокОбъявленийToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            ListAdsForm laf = new ListAdsForm();
+            laf.Show();
+        }
+    }
+}

WebsiteForPlacingAds/WebsiteForPlacingAds/MainForm.resx

@@ -0,0 +1,63 @@
+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <metadata name="menuStrip1.TrayLocation" type="System.Drawing.Point, System.Drawing, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a">
+    <value>17, 17</value>
+  </metadata>
+</root>

WebsiteForPlacingAds/WebsiteForPlacingAds/PostgreSqlDatabase.cs

@@ -0,0 +1,62 @@
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WebsiteForPlacingAds
+{
+    public class PostgreSqlDatabase : AbstractDatabase
+    {
+        public PostgreSqlDatabase(string connectionString) : base(connectionString)
+        {
+        }
+
+        public void addAd(string heading, int price, string date, string status, int id_client, int id_category, int id_subcategory)
+        {
+            string query = String.Format("INSERT INTO ads VALUES (nextval('seq_ads'), '{0}', {1}, '{2}', '{3}', {4}, {5}, {6})", heading, price, date, status, id_client, id_category, id_subcategory);
+            ExecuteNonQuery(query);
+        }
+        public void addClient(string name, string surname, string patronymic, string email, string phone_number, string registration_date, int client_rating)
+        {
+            string query = String.Format($"INSERT INTO clients VALUES (nextval('seq_clients'), {name}', '{surname}', '{patronymic}', '{email}', '{phone_number}', '{registration_date}', '{client_rating}')");
+            ExecuteNonQuery(query);
+        }
+        public void addClientsRating(int number_of_reviews, int number_of_sales, int number_of_subscribers, float average_rating)
+        {
+            string query = String.Format($"INSERT INTO clients_rating VALUES (nextval('seq_user_rating'), {number_of_reviews}', '{number_of_sales}', '{number_of_subscribers}', '{average_rating}')");
+            ExecuteNonQuery(query);
+        }
+        public void addSubcategory(string name)
+        {
+            string query = String.Format($"INSERT INTO subcategories VALUES (nextval('seq_subcategory'), {name}')");
+            ExecuteNonQuery(query);
+        }
+        public void addCategory(string name)
+        {
+            string query = String.Format($"INSERT INTO categories VALUES (nextval('seq_category'), {name}')");
+            ExecuteNonQuery(query);
+        }
+        public DataTable getAllCategories()
+        {
+            string query = "SELECT category_id, name FROM categories";
+            return ExecuteQuery(query);
+        }
+        public DataTable getAllSubcategories()
+        {
+            string query = "SELECT subcategory_id, name FROM subcategories";
+            return ExecuteQuery(query);
+        }
+        public DataTable getAllClients()
+        {
+            string query = "SELECT client_id, name, surname FROM clients";
+            return ExecuteQuery(query);
+        }
+        public DataTable getClient(int id_client)
+        {
+            string query = $"SELECT * FROM clients where id = {id_client}";
+            return ExecuteQuery(query);
+        }
+    }
+}

WebsiteForPlacingAds/WebsiteForPlacingAds/Program.cs

@@ -11,7 +11,7 @@ namespace WebsiteForPlacingAds
             // To customize application configuration such as set high DPI settings or default font,
             // see https://aka.ms/applicationconfiguration.
             ApplicationConfiguration.Initialize();
-            Application.Run(new Form1());
+            Application.Run(new MainForm());
         }
     }
 }

WebsiteForPlacingAds/WebsiteForPlacingAds/UpdateAdsForm.Designer.cs

@@ -1,6 +1,6 @@
 namespace WebsiteForPlacingAds
 {
-    partial class Form1
+    partial class UpdateAdsForm
     {
         /// <summary>
         /// Required designer variable.
@@ -31,7 +31,7 @@
             this.components = new System.ComponentModel.Container();
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.ClientSize = new System.Drawing.Size(800, 450);
-            this.Text = "Form1";
+            this.Text = "DeleteAdsForm";
         }
 
         #endregion

WebsiteForPlacingAds/WebsiteForPlacingAds/UpdateAdsForm.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace WebsiteForPlacingAds
+{
+    public partial class UpdateAdsForm : Form
+    {
+        public UpdateAdsForm()
+        {
+            InitializeComponent();
+        }
+    }
+}

WebsiteForPlacingAds/WebsiteForPlacingAds/UpdateAdsForm.resx

@@ -0,0 +1,60 @@
+<root>
+  <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>

WebsiteForPlacingAds/WebsiteForPlacingAds/WebsiteForPlacingAds.csproj

@@ -8,4 +8,8 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Npgsql" Version="7.0.2" />
+  </ItemGroup>
+
 </Project>