diff --git a/.gitignore b/.gitignore
index 3c4efe2..8fc023c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -211,8 +211,6 @@ UpgradeLog*.XML
 UpgradeLog*.htm
 
 # SQL Server files
-*.mdf
-*.ldf
 
 # Business Intelligence projects
 *.rdl.data
diff --git a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/MainWindow.xaml b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/MainWindow.xaml
index da580ab..f098b1b 100644
--- a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/MainWindow.xaml
+++ b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/MainWindow.xaml
@@ -6,7 +6,7 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:BMO.GameDevUnity.CSharp2.Pract5"
         mc:Ignorable="d"
-        Title="Сотрудники организации" Height="450" Width="800">
+        Title="Сотрудники организации" Height="450" Width="800" Loaded="WndMain_Loaded">
     <Window.Resources>
         <SolidColorBrush x:Key="Brush1" Color="Azure"/>
     </Window.Resources>
@@ -33,17 +33,17 @@
                 <MenuItem x:Name="miExit" Header="Exit" Click="MiExit_Click"></MenuItem>
             </MenuItem>
         </Menu>
-        <ListView x:Name="lvEmployees" Grid.Column="2" HorizontalAlignment="Stretch" Grid.Row="1" VerticalAlignment="Stretch" Margin="20" SelectionChanged="LbEmployees_SelectionChanged">
+        <ListView x:Name="lvEmployees" ItemsSource="{Binding}" Grid.Column="2" HorizontalAlignment="Stretch" Grid.Row="1" VerticalAlignment="Stretch" Margin="20" SelectionChanged="LbEmployees_SelectionChanged">
             <ListView.View>
                 <GridView>
-                    <GridViewColumn Header="Имя" Width="125px" DisplayMemberBinding="{Binding FirstName}" />
-                    <GridViewColumn Header="Фамилия" Width="125px" DisplayMemberBinding="{Binding LastName}" />
-                    <GridViewColumn Header="Возраст" Width="100px" DisplayMemberBinding="{Binding Age}" />
-                    <GridViewColumn Header="Профессия" Width="160px" DisplayMemberBinding="{Binding Profession}" />
+                    <GridViewColumn Header="Имя" Width="125px" DisplayMemberBinding="{Binding first_name}" />
+                    <GridViewColumn Header="Фамилия" Width="125px" DisplayMemberBinding="{Binding last_name}" />
+                    <GridViewColumn Header="Возраст" Width="100px" DisplayMemberBinding="{Binding age}" />
+                    <GridViewColumn Header="Профессия" Width="160px" DisplayMemberBinding="{Binding profession}" />
                 </GridView>
             </ListView.View>
         </ListView>
-        <ComboBox x:Name="cbDepartments" Grid.Column="2" VerticalAlignment="Top" FontSize="20" Margin="30" ItemsSource="{Binding ElementName=wndMain, Path=MyOrganization.Keys, Mode=OneWay}" HorizontalContentAlignment="Right" DropDownClosed="CbDepartments_DropDownClosed"/>
+        <ComboBox x:Name="cbDepartments" ItemsSource="{Binding}" DisplayMemberPath="name" Grid.Column="2" VerticalAlignment="Top" FontSize="20" Margin="30" HorizontalContentAlignment="Right" DropDownClosed="CbDepartments_DropDownClosed"/>
         <Button Grid.Column="1" Grid.Row="2" Grid.ColumnSpan="2" HorizontalAlignment="Right" VerticalAlignment="Bottom" Margin="20,20,20,20" Content="Add" Background="{DynamicResource Brush1}" Foreground="Brown" Name="btnAddEmployee" Click="BtnAddEmployee_Click"/>
         <Button Grid.Column="1" Grid.Row="2" Grid.ColumnSpan="2" HorizontalAlignment="Right" VerticalAlignment="Bottom" Margin="20,20,20,70" Content="Add" Background="{DynamicResource Brush1}" Foreground="Brown" Name="btnAddDepartment" Click="BtnAddDepartment_Click"/>
         
diff --git a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/MainWindow.xaml.cs b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/MainWindow.xaml.cs
index 8a3a7dd..8edf46f 100644
--- a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/MainWindow.xaml.cs
+++ b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/MainWindow.xaml.cs
@@ -15,6 +15,8 @@
 using System.IO;
 using System.Xml.Serialization;
 using Microsoft.Win32;
+using System.Data;
+using System.Data.SqlClient;
 
 namespace BMO.GameDevUnity.CSharp2.Pract5
 {
@@ -23,32 +25,21 @@ namespace BMO.GameDevUnity.CSharp2.Pract5
     /// </summary>
     public partial class MainWindow : Window
     {
-        static public Organization MyOrganization { get; set; }
+        //static public Organization MyOrganization { get; set; }
 
         static string fileName = "data.xml";
-        public string TestStr { get; set; }
+
+        SqlConnection connection;
+        SqlDataAdapter adapterEmployees;
+        public static DataTable dtEmployees;
+        SqlDataAdapter adapterDepartments;
+        public static DataTable dtDepartments;
 
         public MainWindow()
         {
-            MyOrganization = new Organization()
-            {
-                //{"Информационный", new Department() { Name = "Информационный" } },
-                //{ "Административный", new Department() { Name = "Административный" } },
-                //{ "Экономический", new Department() { Name = "Экономический" } }
-            };
             InitializeComponent();
 
-            this.DataContext = this;
-
-            if (cbDepartments.Items.Count == 0)
-            {
-                btnChangeDepartment.Visibility = Visibility.Hidden;
-                btnDeleteDepartment.Visibility = Visibility.Hidden;
-            }
-            else
-            {
-                cbDepartments.Text = MyOrganization.Keys.First();
-            }
+            this.DataContext = this;          
 
             btnDeleteEmployee.Visibility = Visibility.Hidden;
             btnChangeEmployee.Visibility = Visibility.Hidden;
@@ -56,37 +47,109 @@ public MainWindow()
             
         }
 
-        private void BtnButton1_Click(object sender, RoutedEventArgs e)
+        private void WndMain_Loaded(object sender, RoutedEventArgs e)
         {
-            System.Windows.MessageBox.Show("Press");
-        }
+            //string connectionString = @"Data Source=(localdb)\MSSQLLocalDB;Initial Catalog=MyDatabaseCSharpLev2Pract7;Integrated Security=True;Pooling=False";
+            // Из-за особенностей игнорирования Git, необходимо перенести базу данных из корня проекта в попку выполнения bin/Debug
+            string connectionString = @"Data Source=(localdb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\MyDatabaseCSharpLev2Pract7.mdf;Integrated Security=True;Pooling=False";
+            connection = new SqlConnection(connectionString);
+            adapterEmployees = new SqlDataAdapter();
+            adapterDepartments = new SqlDataAdapter();
 
+            // SELECT Departments
+            SqlCommand command = new SqlCommand("SELECT Id, name FROM Departments", connection);
+            adapterDepartments.SelectCommand = command;
 
+            // INSERT Department
+            command = new SqlCommand(@"INSERT INTO Departments(name) VALUES (@name); SET @Id = @@IDENTITY;", connection);
+            command.Parameters.Add("@name", SqlDbType.NVarChar, 50, "name");
+            SqlParameter param = command.Parameters.Add("@Id", SqlDbType.Int, 0, "Id");
+            param.Direction = ParameterDirection.Output;
+            adapterDepartments.InsertCommand = command;
 
-        private void MiExit_Click(object sender, RoutedEventArgs e)
-        {
-            this.Close();
+            // UPDATE Department
+            command = new SqlCommand("UPDATE Departments SET name = @name WHERE Id = @Id", connection);
+            command.Parameters.Add("@name", SqlDbType.NVarChar, 50, "name");
+            param = command.Parameters.Add("@Id", SqlDbType.Int, 0, "Id");
+            param.SourceVersion = DataRowVersion.Original;
+            adapterDepartments.UpdateCommand = command;
+
+            // DELETE Department
+            command = new SqlCommand("DELETE FROM Departments WHERE Id = @Id", connection);
+            param = command.Parameters.Add("@Id", SqlDbType.Int, 0, "Id");
+            param.SourceVersion = DataRowVersion.Original;
+            adapterDepartments.DeleteCommand = command;
+
+            // Заполнение департаментов
+            dtDepartments = new DataTable();
+            adapterDepartments.Fill(dtDepartments);
+            dtDepartments.PrimaryKey = new DataColumn[1] { dtDepartments.Columns[0] };
+            dtDepartments.Columns[0].AutoIncrement = true;
+            dtDepartments.Columns[0].AutoIncrementStep = 1;
+            cbDepartments.DataContext = dtDepartments.DefaultView;
+            cbDepartments.Text = dtDepartments.Rows[0].ItemArray[1].ToString();
+            if (cbDepartments.Items.Count == 0)
+            {
+                btnChangeDepartment.Visibility = Visibility.Hidden;
+                btnDeleteDepartment.Visibility = Visibility.Hidden;
+            }
+
+
+            // SELECT Employees
+            command = new SqlCommand($"SELECT Id, last_name, first_name, profession, age, id_department FROM Employees WHERE id_department = {dtDepartments.Rows[0].ItemArray[0]}", connection);
+            adapterEmployees.SelectCommand = command;
+
+            // INSERT Employee
+            command = new SqlCommand(@"INSERT INTO Employees(last_name, first_name, profession, age, id_department) VALUES (@last_name, @first_name, @profession, @age, @id_department); SET @Id = @@IDENTITY;", connection);
+            command.Parameters.Add("@last_name", SqlDbType.NVarChar, 50, "last_name");
+            command.Parameters.Add("@first_name", SqlDbType.NVarChar, 50, "first_name");
+            command.Parameters.Add("@profession", SqlDbType.NVarChar, 50, "profession");
+            command.Parameters.Add("@age", SqlDbType.Int, 0, "age");
+            command.Parameters.Add("@id_department", SqlDbType.Int, 0, "id_department");
+            param = command.Parameters.Add("@Id", SqlDbType.Int, 0, "Id");
+            param.Direction = ParameterDirection.Output;
+            adapterEmployees.InsertCommand = command;
+
+            // UPDATE Employee
+            command = new SqlCommand("UPDATE Employees SET last_name = @last_name, first_name = @first_name, profession = @profession, age = @age, id_department = @id_department WHERE Id = @Id", connection);
+            command.Parameters.Add("@last_name", SqlDbType.NVarChar, 50, "last_name");
+            command.Parameters.Add("@first_name", SqlDbType.NVarChar, 50, "first_name");
+            command.Parameters.Add("@profession", SqlDbType.NVarChar, 50, "profession");
+            command.Parameters.Add("@age", SqlDbType.Int, 0, "age");
+            command.Parameters.Add("@id_department", SqlDbType.Int, 0, "id_department");
+            param = command.Parameters.Add("@Id", SqlDbType.Int, 0, "Id");
+            param.SourceVersion = DataRowVersion.Original;
+            adapterEmployees.UpdateCommand = command;
+
+            // DELETE Emmployee
+            command = new SqlCommand("DELETE FROM Employees WHERE Id = @Id", connection);
+            param = command.Parameters.Add("@Id", SqlDbType.Int, 0, "Id");
+            param.SourceVersion = DataRowVersion.Original;
+            adapterEmployees.DeleteCommand = command;
+
+            // Заполнение сотрудников
+            dtEmployees = new DataTable();
+            adapterEmployees.Fill(dtEmployees);
+            dtEmployees.PrimaryKey = new DataColumn[1] { dtEmployees.Columns[0] };
+            lvEmployees.DataContext = dtEmployees.DefaultView;
         }
 
-        private void BtnAddEmployee_Click(object sender, RoutedEventArgs e)
+        private void MiExit_Click(object sender, RoutedEventArgs e)
         {
-            wndNewEmployee wndNewEmployee = new wndNewEmployee();
-            if (wndNewEmployee.ShowDialog() == true)
-            {
-                MyOrganization[wndNewEmployee.NameOfDepartment].Add(wndNewEmployee.ForExchange);
-                cbDepartments.Text = wndNewEmployee.NameOfDepartment;
-                UpdateListBoxEmployee(wndNewEmployee.NameOfDepartment);
-            };
+            this.Close();
         }
 
         void UpdateCheckBoxDepartments()
         {
-            cbDepartments.Items.Refresh();
             if (cbDepartments.Items.Count != 0)
             {
-                cbDepartments.SelectedItem = cbDepartments.Items[cbDepartments.Items.Count - 1];
-                cbDepartments.Text = (cbDepartments.Items.Count == 1)?(cbDepartments.Text = cbDepartments.Items[cbDepartments.Items.IndexOf(cbDepartments.SelectedItem)].ToString()):(cbDepartments.Items[0].ToString());
-                UpdateListBoxEmployee(cbDepartments.Text);
+                if (cbDepartments.SelectedItem == null)
+                {
+                    cbDepartments.SelectedItem = cbDepartments.Items[cbDepartments.Items.Count - 1];
+                }
+                DataRowView department = (DataRowView)cbDepartments.SelectedItem;
+                cbDepartments.Text = department.Row.ItemArray[1].ToString();
+                UpdateListBoxEmployee();
                 btnDeleteDepartment.Visibility = Visibility.Visible;
                 btnChangeDepartment.Visibility = Visibility.Visible;
             }
@@ -98,10 +161,14 @@ void UpdateCheckBoxDepartments()
             }
         }
 
-        void UpdateListBoxEmployee(string NameOfDepartment)
+        void UpdateListBoxEmployee()
         {
-            lvEmployees.ItemsSource = MyOrganization[cbDepartments.Text];
-            lvEmployees.Items.Refresh();
+            DataRowView department = (DataRowView)cbDepartments.SelectedItem; 
+            SqlCommand command = new SqlCommand($"SELECT Id, last_name, first_name, profession, age, id_department FROM Employees WHERE id_department = {department.Row.ItemArray[0]}", connection);
+            adapterEmployees.SelectCommand = command;
+            dtEmployees.Clear();
+            adapterEmployees.Fill(dtEmployees);
+
             if (cbDepartments.Items.Count != 0)
             {
                 btnDeleteDepartment.Visibility = Visibility.Visible;
@@ -121,7 +188,7 @@ private void MiSave_Click(object sender, RoutedEventArgs e)
         {
             XmlSerializer xmlSerializer = new XmlSerializer(typeof(Organization));
             FileStream fileStream = new FileStream(fileName, FileMode.Create, FileAccess.Write);
-            xmlSerializer.Serialize(fileStream, MyOrganization);
+            //xmlSerializer.Serialize(fileStream, MyOrganization);
             fileStream.Close();
 
         }
@@ -130,7 +197,7 @@ private void CbDepartments_DropDownClosed(object sender, EventArgs e)
         {
             if (cbDepartments.Items.Count != 0)
             {
-                UpdateListBoxEmployee(cbDepartments.Text);
+                UpdateListBoxEmployee();
             }
             else
             {
@@ -147,11 +214,11 @@ private void MiLoad_Click(object sender, RoutedEventArgs e)
                 fileName = ofd.FileName;
                 XmlSerializer xmlFormat = new XmlSerializer(typeof(Organization));
                 Stream fStream = new FileStream(ofd.FileName, FileMode.Open, FileAccess.Read);
-                MyOrganization = (Organization)xmlFormat.Deserialize(fStream);
+                //MyOrganization = (Organization)xmlFormat.Deserialize(fStream);
                 UpdateCheckBoxDepartments();
                 if (cbDepartments.Items.Count != 0)
                 {                    
-                    UpdateListBoxEmployee(cbDepartments.Text);
+                    UpdateListBoxEmployee();
                 }                
                 fStream.Close();
             }
@@ -167,29 +234,47 @@ private void MiSaveAs_Click(object sender, RoutedEventArgs e)
                 fileName = sfd.FileName;
                 XmlSerializer xmlSerializer = new XmlSerializer(typeof(Organization));
                 FileStream fileStream = new FileStream(sfd.FileName, FileMode.Create, FileAccess.Write);
-                xmlSerializer.Serialize(fileStream, MyOrganization);
+                //xmlSerializer.Serialize(fileStream, MyOrganization);
                 fileStream.Close();
             }
         }
 
+        private void BtnAddEmployee_Click(object sender, RoutedEventArgs e)
+        {
+            DataRow newRow = dtEmployees.NewRow();
+            wndNewEmployee wndNewEmployee = new wndNewEmployee(newRow);
+            if (wndNewEmployee.ShowDialog() == true)
+            {
+                dtEmployees.Rows.Add(wndNewEmployee.resultRow);
+                adapterEmployees.Update(dtEmployees);
+                cbDepartments.Text = dtDepartments.Rows.Find((int)wndNewEmployee.resultRow["id_department"]).ItemArray[1].ToString();
+                UpdateListBoxEmployee();
+            };
+        }
+
         private void BtnAddDepartment_Click(object sender, RoutedEventArgs e)
         {
-            wndNewDepartment wndNewDepartment = new wndNewDepartment();
+            DataRow newRow = dtDepartments.NewRow();
+            wndNewDepartment wndNewDepartment = new wndNewDepartment(newRow);
             if (wndNewDepartment.ShowDialog() == true)
             {
-                MyOrganization.Add(wndNewDepartment.NameOfDepartment, new Department() { Name = wndNewDepartment.NameOfDepartment });
+                dtDepartments.Rows.Add(wndNewDepartment.resultRow);
+                adapterDepartments.Update(dtDepartments);
+                cbDepartments.SelectedItem = dtDepartments.Rows.Find((int)wndNewDepartment.resultRow["Id"]);
                 UpdateCheckBoxDepartments();
-                cbDepartments.Text = wndNewDepartment.NameOfDepartment;
-                UpdateListBoxEmployee(wndNewDepartment.NameOfDepartment);
+                cbDepartments.Text = dtDepartments.Rows.Find((int)wndNewDepartment.resultRow["Id"]).ItemArray[1].ToString();
+                UpdateListBoxEmployee();
             };
         }
 
         private void BtnDeleteEmployee_Click(object sender, RoutedEventArgs e)
         {
+            DataRowView newRow = (DataRowView)lvEmployees.SelectedItem;
             if (lvEmployees.SelectedItem != null)
             {
-                MyOrganization[cbDepartments.Text].Remove((Employee)lvEmployees.SelectedItem);
-                UpdateListBoxEmployee(cbDepartments.Text);
+                newRow.Row.Delete();
+                adapterEmployees.Update(dtEmployees);
+                UpdateListBoxEmployee();
             }
             else
             {
@@ -199,9 +284,11 @@ private void BtnDeleteEmployee_Click(object sender, RoutedEventArgs e)
 
         private void BtnDeleteDepartment_Click(object sender, RoutedEventArgs e)
         {
+            DataRowView newRow = (DataRowView)cbDepartments.SelectedItem;
             if (cbDepartments.Items.Count != 0)
             {
-                MyOrganization.Remove(cbDepartments.Text);
+                newRow.Row.Delete();
+                adapterDepartments.Update(dtDepartments);
                 UpdateCheckBoxDepartments();
             }
             else
@@ -212,22 +299,22 @@ private void BtnDeleteDepartment_Click(object sender, RoutedEventArgs e)
 
         private void BtnChangeEmployee_Click(object sender, RoutedEventArgs e)
         {
-            wndChangeEmployee wndChangeEmployee = new wndChangeEmployee();            
+            DataRowView newRow = (DataRowView)lvEmployees.SelectedItem;
+            newRow.BeginEdit();
+            wndChangeEmployee wndChangeEmployee = new wndChangeEmployee(newRow.Row);            
             if (lvEmployees.SelectedItem != null)
             {
-                Employee employeeBuffer = (Employee)lvEmployees.SelectedItem;
-                wndChangeEmployee.LastName = employeeBuffer.LastName;
-                wndChangeEmployee.FirstName = employeeBuffer.FirstName;
-                wndChangeEmployee.Profession = employeeBuffer.Profession;
-                wndChangeEmployee.Age = employeeBuffer.Age;
-                wndChangeEmployee.Department = cbDepartments.Text;
                 if (wndChangeEmployee.ShowDialog() == true)
                 {
-                    MyOrganization[cbDepartments.Text].Remove((Employee)lvEmployees.SelectedItem);
-                    MyOrganization[wndChangeEmployee.Department].Add(wndChangeEmployee.ForExchange);
-                    cbDepartments.Text = wndChangeEmployee.Department;
-                    UpdateListBoxEmployee(wndChangeEmployee.Department);
-                };
+                    newRow.EndEdit();
+                    adapterEmployees.Update(dtEmployees);
+                    cbDepartments.Text = dtDepartments.Rows.Find((int)wndChangeEmployee.resultRow["id_department"]).ItemArray[1].ToString();
+                    UpdateListBoxEmployee();
+                }
+                else
+                {
+                    newRow.CancelEdit();
+                }
             }
             else
             {
@@ -237,20 +324,24 @@ private void BtnChangeEmployee_Click(object sender, RoutedEventArgs e)
 
         private void BtnChangeDepartment_Click(object sender, RoutedEventArgs e)
         {
-            wndChangeDepartment wndChangeDepartment = new wndChangeDepartment();
+            DataRowView newRow = (DataRowView)cbDepartments.SelectedItem;
+            newRow.BeginEdit();
+            wndChangeDepartment wndChangeDepartment = new wndChangeDepartment(newRow.Row);
             if (cbDepartments.Items.Count != 0)
-            {
-                Department employeesBuffer = MyOrganization[cbDepartments.Text];
-                wndChangeDepartment.Department = cbDepartments.Text;
+            {                
                 if (wndChangeDepartment.ShowDialog() == true)
                 {
-                    MyOrganization.Remove(cbDepartments.Text);
-                    employeesBuffer.Name = wndChangeDepartment.Department;
-                    MyOrganization.Add(wndChangeDepartment.Department, employeesBuffer);
+                    newRow.EndEdit();
+                    adapterDepartments.Update(dtDepartments);
+                    cbDepartments.SelectedItem = dtDepartments.Rows.Find((int)wndChangeDepartment.resultRow["Id"]);
+                    cbDepartments.Text = dtDepartments.Rows.Find((int)wndChangeDepartment.resultRow["Id"]).ItemArray[1].ToString();
                     UpdateCheckBoxDepartments();
-                    cbDepartments.Text = wndChangeDepartment.Department;
-                    UpdateListBoxEmployee(wndChangeDepartment.Department);
-                };                
+                    UpdateListBoxEmployee();
+                }
+                else
+                {
+                    newRow.CancelEdit();
+                }
             }
             else
             {
diff --git a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndChangeDepartment.xaml.cs b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndChangeDepartment.xaml.cs
index 15bc5b3..780ecec 100644
--- a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndChangeDepartment.xaml.cs
+++ b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndChangeDepartment.xaml.cs
@@ -11,6 +11,7 @@
 using System.Windows.Media;
 using System.Windows.Media.Imaging;
 using System.Windows.Shapes;
+using System.Data;
 
 namespace BMO.GameDevUnity.CSharp2.Pract5
 {
@@ -19,17 +20,20 @@ namespace BMO.GameDevUnity.CSharp2.Pract5
     /// </summary>
     public partial class wndChangeDepartment : Window
     {
-        public string Department { get; set; }
-        public wndChangeDepartment()
+        public DataRow resultRow { get; set; }
+
+        public wndChangeDepartment(DataRow newRow)
         {
             InitializeComponent();
 
             this.DataContext = this;
+
+            resultRow = newRow;
         }
 
         private void Window_Loaded(object sender, RoutedEventArgs e)
         {
-            tbNameDepartment.Text = Department;
+            tbNameDepartment.Text = resultRow["name"].ToString();
         }
 
         private void BtnOK_Click(object sender, RoutedEventArgs e)
@@ -40,7 +44,7 @@ private void BtnOK_Click(object sender, RoutedEventArgs e)
             }
             else
             {
-                Department = tbNameDepartment.Text;
+                resultRow["name"] = tbNameDepartment.Text;
                 this.DialogResult = true;
             }
 
@@ -55,7 +59,7 @@ private void BtnCancel_Click(object sender, RoutedEventArgs e)
 
         private void BtnReset_Click(object sender, RoutedEventArgs e)
         {
-            tbNameDepartment.Text = Department;
+            tbNameDepartment.Text = resultRow["name"].ToString();
         }
     }
 }
diff --git a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndChangeEmployee.xaml b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndChangeEmployee.xaml
index 1b1a7eb..1bee24e 100644
--- a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndChangeEmployee.xaml
+++ b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndChangeEmployee.xaml
@@ -16,7 +16,7 @@
         <Label Content="Age"/>
         <TextBox Name="tbAge" Width="300" HorizontalAlignment="Left"/>
         <Label Content="Department"/>
-        <ComboBox x:Name="cbDepartments"></ComboBox>
+        <ComboBox x:Name="cbDepartments" ItemsSource="{Binding}" DisplayMemberPath="name"></ComboBox>
         <Grid>
             <Button Name="btnOK" Content="OK" Margin="5" HorizontalAlignment="Right" Click="BtnOK_Click"/>
             <Button x:Name="btnCancel" Content="Cancel" Margin="5,5,120,5" HorizontalAlignment="Right" Click="BtnCancel_Click"/>
diff --git a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndChangeEmployee.xaml.cs b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndChangeEmployee.xaml.cs
index 2f7cc91..a7ccaed 100644
--- a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndChangeEmployee.xaml.cs
+++ b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndChangeEmployee.xaml.cs
@@ -11,6 +11,7 @@
 using System.Windows.Media;
 using System.Windows.Media.Imaging;
 using System.Windows.Shapes;
+using System.Data;
 
 namespace BMO.GameDevUnity.CSharp2.Pract5
 {
@@ -19,23 +20,15 @@ namespace BMO.GameDevUnity.CSharp2.Pract5
     /// </summary>
     public partial class wndChangeEmployee : Window
     {
-        public string LastName { get; set; }
-        public string FirstName { get; set; }
-        public string Profession { get; set; }
-        public int Age { get; set; }
-        public string Department { get; set; }
-        public Employee ForExchange { get; set; }
+        public DataRow resultRow { get; set; }
 
-        public wndChangeEmployee()
+        public wndChangeEmployee(DataRow newRow)
         {
             InitializeComponent();
 
             this.DataContext = this;
 
-            foreach (var department in MainWindow.MyOrganization)
-            {
-                cbDepartments.Items.Add(department.Key);
-            }
+            resultRow = newRow;
         }
 
         private void BtnCancel_Click(object sender, RoutedEventArgs e)
@@ -48,34 +41,39 @@ private void BtnOK_Click(object sender, RoutedEventArgs e)
         {
             try
             {
-                ForExchange = new Employee(tbLastName.Text, tbFirstName.Text, tbProfession.Text, Convert.ToInt32(tbAge.Text));
-                Department = cbDepartments.Text;
+                resultRow["first_name"] = tbFirstName.Text;
+                resultRow["last_name"] = tbLastName.Text;
+                resultRow["profession"] = tbProfession.Text;
+                resultRow["age"] = tbAge.Text;
+                DataRowView department = (DataRowView)cbDepartments.SelectedItem;
+                resultRow["id_department"] = department.Row.ItemArray[0];
                 this.DialogResult = true;
             }
             catch (Exception)
             {
 
                 MessageBox.Show("Введены некорректные данные", "Ошибка!", MessageBoxButton.OK, MessageBoxImage.Error);
-            }            
+            }
             this.Close();
         }
 
         private void BtnReset_Click(object sender, RoutedEventArgs e)
         {
-            tbLastName.Text = LastName;
-            tbFirstName.Text = FirstName;
-            tbProfession.Text = Profession;
-            tbAge.Text = Age.ToString();
-            cbDepartments.Text = Department;
+            tbFirstName.Text = resultRow["first_name"].ToString();
+            tbLastName.Text = resultRow["last_name"].ToString();
+            tbProfession.Text = resultRow["profession"].ToString();
+            tbAge.Text = resultRow["age"].ToString();
+            cbDepartments.Text = MainWindow.dtDepartments.Rows.Find((int)resultRow["id_department"]).ItemArray[1].ToString();
         }
 
         private void Window_Loaded(object sender, RoutedEventArgs e)
         {
-            tbLastName.Text = LastName;
-            tbFirstName.Text = FirstName;
-            tbProfession.Text = Profession;
-            tbAge.Text = Age.ToString();
-            cbDepartments.Text = Department;
+            tbFirstName.Text = resultRow["first_name"].ToString();
+            tbLastName.Text = resultRow["last_name"].ToString();
+            tbProfession.Text = resultRow["profession"].ToString();
+            tbAge.Text = resultRow["age"].ToString();
+            cbDepartments.DataContext = MainWindow.dtDepartments.DefaultView;
+            cbDepartments.Text = MainWindow.dtDepartments.Rows.Find((int)resultRow["id_department"]).ItemArray[1].ToString();
         }
     }
 }
diff --git a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewDepartment.xaml b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewDepartment.xaml
index a128dfc..281889b 100644
--- a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewDepartment.xaml
+++ b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewDepartment.xaml
@@ -5,7 +5,7 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:BMO.GameDevUnity.CSharp2.Pract5"
         mc:Ignorable="d"
-        Title="Добавление нового департамента" Height="120" Width="310">
+        Title="Добавление нового департамента" Height="120" Width="310" Loaded="Window_Loaded">
     <StackPanel Margin="0,0,0,0">
         <Label Content="Name department"/>
         <TextBox Name="tbNameDepartment" Width="300" HorizontalAlignment="Left"/>
diff --git a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewDepartment.xaml.cs b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewDepartment.xaml.cs
index 1226628..f8bea2e 100644
--- a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewDepartment.xaml.cs
+++ b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewDepartment.xaml.cs
@@ -11,6 +11,7 @@
 using System.Windows.Media;
 using System.Windows.Media.Imaging;
 using System.Windows.Shapes;
+using System.Data;
 
 namespace BMO.GameDevUnity.CSharp2.Pract5
 {
@@ -19,13 +20,13 @@ namespace BMO.GameDevUnity.CSharp2.Pract5
     /// </summary>
     public partial class wndNewDepartment : Window
     {
-        public string NameOfDepartment { get; set; }
+        public DataRow resultRow { get; set; }
 
-        public wndNewDepartment()
+        public wndNewDepartment(DataRow newRow)
         {
             InitializeComponent();
 
-            this.DataContext = this;
+            resultRow = newRow;
         }
 
         private void BtnOK_Click(object sender, RoutedEventArgs e)
@@ -36,11 +37,16 @@ private void BtnOK_Click(object sender, RoutedEventArgs e)
             }
             else
             {
-                NameOfDepartment = tbNameDepartment.Text;
+                resultRow["name"] = tbNameDepartment.Text;
 
                 this.DialogResult = true;
             }
             this.Close();
         }
+
+        private void Window_Loaded(object sender, RoutedEventArgs e)
+        {
+            tbNameDepartment.Text = resultRow["name"].ToString();
+        }
     }
 }
diff --git a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewEmployee.xaml b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewEmployee.xaml
index 7eca65a..9ca09d7 100644
--- a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewEmployee.xaml
+++ b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewEmployee.xaml
@@ -5,7 +5,7 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         xmlns:local="clr-namespace:BMO.GameDevUnity.CSharp2.Pract5"
         mc:Ignorable="d"
-        Title="Добавление нового сотрудника" Height="300" Width="350">
+        Title="Добавление нового сотрудника" Height="300" Width="350" Loaded="Window_Loaded">
     <StackPanel Margin="0,0,0,0">
         <Label Content="First Name"/>
         <TextBox Name="tbFirstName" Width="300" HorizontalAlignment="Left"/>
@@ -16,7 +16,7 @@
         <Label Content="Age"/>
         <TextBox Name="tbAge" Width="300" HorizontalAlignment="Left"/>
         <Label Content="Department"/>
-        <ComboBox x:Name="cbDepartments"></ComboBox>
+        <ComboBox x:Name="cbDepartments" ItemsSource="{Binding}" DisplayMemberPath="name"></ComboBox>
         <Button Name="btnOK" Content="OK" Margin="5" HorizontalAlignment="Right" Click="BtnOK_Click"/>
     </StackPanel>
 </Window>
\ No newline at end of file
diff --git a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewEmployee.xaml.cs b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewEmployee.xaml.cs
index c0b3a85..a28be5d 100644
--- a/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewEmployee.xaml.cs
+++ b/BMO.GameDevUnity.CSharp2.Pract5/BMO.GameDevUnity.CSharp2.Pract5/wndNewEmployee.xaml.cs
@@ -11,6 +11,8 @@
 using System.Windows.Media;
 using System.Windows.Media.Imaging;
 using System.Windows.Shapes;
+using System.Data;
+using System.Data.SqlClient;
 
 namespace BMO.GameDevUnity.CSharp2.Pract5
 {
@@ -19,28 +21,27 @@ namespace BMO.GameDevUnity.CSharp2.Pract5
     /// </summary>
     public partial class wndNewEmployee : Window
     {
-        public Employee ForExchange { get; set; }
-        public string NameOfDepartment { get; set; }
+        public DataRow resultRow { get; set; }
 
-        public wndNewEmployee()
+        public wndNewEmployee(DataRow newRow)
         {
             InitializeComponent();
 
             this.DataContext = this;
 
-            foreach (var department in MainWindow.MyOrganization)
-            {
-                cbDepartments.Items.Add(department.Key);
-            }
-            cbDepartments.Text = cbDepartments.Items[0].ToString();
+            resultRow = newRow;
         }
 
         private void BtnOK_Click(object sender, RoutedEventArgs e)
         {
             try
             {
-                ForExchange = new Employee(tbLastName.Text, tbFirstName.Text, tbProfession.Text, Convert.ToInt32(tbAge.Text));
-                NameOfDepartment = cbDepartments.Text;
+                resultRow["first_name"] = tbFirstName.Text;
+                resultRow["last_name"] = tbLastName.Text;
+                resultRow["profession"] = tbProfession.Text;
+                resultRow["age"] = tbAge.Text;
+                DataRowView department = (DataRowView)cbDepartments.SelectedItem;
+                resultRow["id_department"] = department.Row.ItemArray[0];
                 this.DialogResult = true;
             }
             catch (Exception)
@@ -50,5 +51,15 @@ private void BtnOK_Click(object sender, RoutedEventArgs e)
             }   
             this.Close();
         }
+
+        private void Window_Loaded(object sender, RoutedEventArgs e)
+        {
+            tbFirstName.Text = resultRow["first_name"].ToString();
+            tbLastName.Text = resultRow["last_name"].ToString();
+            tbProfession.Text = resultRow["profession"].ToString();
+            tbAge.Text = resultRow["age"].ToString();
+            cbDepartments.DataContext = MainWindow.dtDepartments.DefaultView;
+            cbDepartments.Text = MainWindow.dtDepartments.Rows[0].ItemArray[1].ToString();
+        }
     }
 }
diff --git a/BMO.GameDevUnity.CSharp2.Pract5/MyDatabaseCSharpLev2Pract7.ldf b/BMO.GameDevUnity.CSharp2.Pract5/MyDatabaseCSharpLev2Pract7.ldf
new file mode 100644
index 0000000..d207e17
Binary files /dev/null and b/BMO.GameDevUnity.CSharp2.Pract5/MyDatabaseCSharpLev2Pract7.ldf differ
diff --git a/BMO.GameDevUnity.CSharp2.Pract5/MyDatabaseCSharpLev2Pract7.mdf b/BMO.GameDevUnity.CSharp2.Pract5/MyDatabaseCSharpLev2Pract7.mdf
new file mode 100644
index 0000000..34793ce
Binary files /dev/null and b/BMO.GameDevUnity.CSharp2.Pract5/MyDatabaseCSharpLev2Pract7.mdf differ