diff --git a/AvaloniaApplication14_Inventory_300326/Models/DataBase/EquipmentRepository.cs b/AvaloniaApplication14_Inventory_300326/Models/DataBase/EquipmentRepository.cs
index 7181a1e..ef71fca 100644
--- a/AvaloniaApplication14_Inventory_300326/Models/DataBase/EquipmentRepository.cs
+++ b/AvaloniaApplication14_Inventory_300326/Models/DataBase/EquipmentRepository.cs
@@ -137,4 +137,21 @@ public class EquipmentRepository : BaseRepository<Equipment>, IDisposable
             return false;
         }
     }
+
+    public bool ValidateInvNumber(string invNumber)
+    {
+        string sql = "select * from `Equipment` where InvNumber=@invNumber";
+        using(var mc = new MySqlCommand(sql, connection))
+        {
+            mc.Parameters.AddWithValue("@invNumber", invNumber);
+            using (var reader = mc.ExecuteReader())
+            {
+                while (reader.Read())
+                {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
 }
\ No newline at end of file
diff --git a/AvaloniaApplication14_Inventory_300326/ViewModels/EmployeeEditingWindowViewModel.cs b/AvaloniaApplication14_Inventory_300326/ViewModels/EmployeeEditingWindowViewModel.cs
index 1aa3c93..05b8f84 100644
--- a/AvaloniaApplication14_Inventory_300326/ViewModels/EmployeeEditingWindowViewModel.cs
+++ b/AvaloniaApplication14_Inventory_300326/ViewModels/EmployeeEditingWindowViewModel.cs
@@ -113,9 +113,9 @@ public partial class EmployeeEditingWindowViewModel : ViewModelBase
     {
         _currentWindow = window;
         _currentWindow.ConfirmButton.Content = _isEditing ? "Изменить" : "Добавить";
-        if (_isEditing)
+        if (!_isEditing)
         {
-            
+            _currentWindow.FireButton.IsVisible = false;
         }
     }
 }
\ No newline at end of file
diff --git a/AvaloniaApplication14_Inventory_300326/ViewModels/EquipmentEditingWindowViewModel.cs b/AvaloniaApplication14_Inventory_300326/ViewModels/EquipmentEditingWindowViewModel.cs
index 18bd3d7..084d556 100644
--- a/AvaloniaApplication14_Inventory_300326/ViewModels/EquipmentEditingWindowViewModel.cs
+++ b/AvaloniaApplication14_Inventory_300326/ViewModels/EquipmentEditingWindowViewModel.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.ObjectModel;
 using System.Linq;
+using System.Threading.Tasks;
 using AvaloniaApplication14_Inventory_300326.Models.DataBase;
 using AvaloniaApplication14_Inventory_300326.Models.Factoryes;
 using AvaloniaApplication14_Inventory_300326.Models.Models;
@@ -8,6 +9,8 @@ using AvaloniaApplication14_Inventory_300326.Views;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
 using Microsoft.Extensions.DependencyInjection;
+using MsBox.Avalonia;
+using MsBox.Avalonia.Enums;
 
 namespace AvaloniaApplication14_Inventory_300326.ViewModels;
 
@@ -26,29 +29,46 @@ public partial class EquipmentEditingWindowViewModel : ViewModelBase
     [ObservableProperty] private DateTimeOffset? _date;
     [ObservableProperty] private decimal _cost;
     [ObservableProperty] private bool _isWrittenOff;
+    [ObservableProperty] private string _isWrittenOffString;
     [ObservableProperty] private Employee _currentEmployee;
     [ObservableProperty] private ObservableCollection<Employee> _employees;
 
     [RelayCommand]
-    private void Confrm()
+    private async Task Confrm()
     {
-        _equipment.InvNumber = InvNumber;
-        _equipment.Date = Date;
-        _equipment.Cost = Cost;
-        _equipment.IsWrittenOff = IsWrittenOff;
-        _equipment.CurrentEmployee = CurrentEmployee;
-        _equipment.Name = Name;
-
         using (var repo = _serviceProvider.GetService<EquipmentRepository>())
         {
-            if (_isEditing)
-            {
-                repo.Update(_equipmentFactory.CreateFromVisual(_equipment));
-            }
-            else
-            {
-                repo.Add(_equipmentFactory.CreateFromVisual(_equipment));
-            }
+                _equipment.InvNumber = InvNumber;
+                _equipment.Date = Date;
+                _equipment.Cost = Cost;
+                _equipment.IsWrittenOff = IsWrittenOff;
+                _equipment.CurrentEmployee = CurrentEmployee;
+                _equipment.Name = Name;
+                
+                if (_isEditing)
+                {
+                    repo.Update(_equipmentFactory.CreateFromVisual(_equipment));
+                }
+                else
+                {
+                    if (repo.ValidateInvNumber(InvNumber))
+                    {
+                        if (Cost>0)
+                        {
+                            repo.Add(_equipmentFactory.CreateFromVisual(_equipment));
+                        }
+                        else
+                        {
+                            var ErrorWin = MessageBoxManager.GetMessageBoxStandard("Ошибка", "Стоимость должна быть больше 0", ButtonEnum.Ok, Icon.Error);
+                            await ErrorWin.ShowWindowDialogAsync(_currentWindow);
+                        }
+                    }
+                    else
+                    {
+                        var ErrorWin = MessageBoxManager.GetMessageBoxStandard("Ошибка", "Объект с таким инвентарным номером уже существует", ButtonEnum.Ok, Icon.Error);
+                        await ErrorWin.ShowWindowDialogAsync(_currentWindow);
+                    }
+                }
         }
         _currentWindow.Close();
     }
@@ -80,6 +100,7 @@ public partial class EquipmentEditingWindowViewModel : ViewModelBase
             Date = _equipment.Date;
             Cost = _equipment.Cost;
             IsWrittenOff = _equipment.IsWrittenOff;
+            IsWrittenOffString = _equipment.IsWrittenOff?"Да":"Нет";
             CurrentEmployee = _equipment.CurrentEmployee;
             Employees = new ObservableCollection<Employee>();
             Employees.Add(CurrentEmployee);
@@ -102,10 +123,12 @@ public partial class EquipmentEditingWindowViewModel : ViewModelBase
         if (_isEditing)
         {
             _currentWindow.CurrentEmployeeBox.IsVisible = false;
+            _currentWindow.IsWrittenOffCheckBox.IsVisible = false;
         }
         else
         {
             _currentWindow.CurrentEmployeeLabel.IsVisible = false;
+            _currentWindow.IsWrittenOffLabel.IsVisible = false;
         }
     }
 }
\ No newline at end of file
diff --git a/AvaloniaApplication14_Inventory_300326/ViewModels/MainWindowViewModel.cs b/AvaloniaApplication14_Inventory_300326/ViewModels/MainWindowViewModel.cs
index cbcef2c..27c0d0e 100644
--- a/AvaloniaApplication14_Inventory_300326/ViewModels/MainWindowViewModel.cs
+++ b/AvaloniaApplication14_Inventory_300326/ViewModels/MainWindowViewModel.cs
@@ -43,9 +43,9 @@ public partial class MainWindowViewModel : ViewModelBase
             case 0:
                 
                 var equipment = new Equipment();
-                var EquipmentVm = ActivatorUtilities.CreateInstance<EquipmentEditingWindowViewModel>(_serviceProvider, equipment);
-                var EquipmentWin = ActivatorUtilities.CreateInstance<EquipmentEditingWindow>(_serviceProvider, EquipmentVm);
-                await EquipmentWin.ShowDialog(_currentWindow);
+                var equipmentVm = ActivatorUtilities.CreateInstance<EquipmentEditingWindowViewModel>(_serviceProvider, equipment);
+                var equipmentWin = ActivatorUtilities.CreateInstance<EquipmentEditingWindow>(_serviceProvider, equipmentVm);
+                await equipmentWin.ShowDialog(_currentWindow);
                 
                 EquipmentViewModel.ShowTeches();
                 EquipmentViewModel.GetTeches();
@@ -54,15 +54,24 @@ public partial class MainWindowViewModel : ViewModelBase
             case 1:
                 
                 var employee = new Employee();
-                var EmployeeVm = ActivatorUtilities.CreateInstance<EmployeeEditingWindowViewModel>(_serviceProvider, employee);
-                var EmployeeWin = ActivatorUtilities.CreateInstance<EmployeeEditingWindow>(_serviceProvider, EmployeeVm);
-                await EmployeeWin.ShowDialog(_currentWindow);
+                var employeeVm = ActivatorUtilities.CreateInstance<EmployeeEditingWindowViewModel>(_serviceProvider, employee);
+                var employeeWin = ActivatorUtilities.CreateInstance<EmployeeEditingWindow>(_serviceProvider, employeeVm);
+                await employeeWin.ShowDialog(_currentWindow);
                 
                 EmployeesViewModel.ShowEmployees();
                 EmployeesViewModel.GetEmployees();
+                
                 break;
             case 2:
                 
+                var position = new Position();
+                var positionVm = ActivatorUtilities.CreateInstance<PositionEditingWindowViewModel>(_serviceProvider, position);
+                var positionWin = ActivatorUtilities.CreateInstance<PositionEditingWindow>(_serviceProvider, positionVm);
+                await positionWin.ShowDialog(_currentWindow);
+                
+                PositionViewModel.ShowPositions();
+                PositionViewModel.GetPositions();
+                
                 break;
         }
     }
diff --git a/AvaloniaApplication14_Inventory_300326/ViewModels/PositionEditingWindowViewModel.cs b/AvaloniaApplication14_Inventory_300326/ViewModels/PositionEditingWindowViewModel.cs
index 5dee212..00103bf 100644
--- a/AvaloniaApplication14_Inventory_300326/ViewModels/PositionEditingWindowViewModel.cs
+++ b/AvaloniaApplication14_Inventory_300326/ViewModels/PositionEditingWindowViewModel.cs
@@ -1,8 +1,10 @@
 using System;
+using AvaloniaApplication14_Inventory_300326.Models.DataBase;
 using AvaloniaApplication14_Inventory_300326.Models.Models;
 using AvaloniaApplication14_Inventory_300326.Views;
 using CommunityToolkit.Mvvm.ComponentModel;
 using CommunityToolkit.Mvvm.Input;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace AvaloniaApplication14_Inventory_300326.ViewModels;
 
@@ -11,24 +13,38 @@ public partial class PositionEditingWindowViewModel : ViewModelBase
     private IServiceProvider _serviceProvider;
     private bool _isEditing;
     private PositionEditingWindow _currentWindow;
+    private Position _position;
     
     [ObservableProperty] private string _positionName;
 
     [RelayCommand]
     private void Cancel()
     {
-        
+        _currentWindow.Close();
     }
 
     [RelayCommand]
     private void Confirm()
     {
-        
+        _position.Name = PositionName;
+        using (var _positionRepository = _serviceProvider.GetService<PositionRepository>())
+        {
+            if (_isEditing)
+            {
+                _positionRepository.Update(_position);
+            }
+            else
+            {
+                _positionRepository.Add(_position);
+            }
+        }
+        _currentWindow.Close();
     }
     public PositionEditingWindowViewModel(IServiceProvider serviceProvider, Position position)
     {
         _serviceProvider = serviceProvider;
         _isEditing = !position.IsNew();
+        _position = position;
         if (_isEditing)
         {
             PositionName = position.Name;
diff --git a/AvaloniaApplication14_Inventory_300326/ViewModels/PositionViewModel.cs b/AvaloniaApplication14_Inventory_300326/ViewModels/PositionViewModel.cs
index 88a62de..62ed464 100644
--- a/AvaloniaApplication14_Inventory_300326/ViewModels/PositionViewModel.cs
+++ b/AvaloniaApplication14_Inventory_300326/ViewModels/PositionViewModel.cs
@@ -39,8 +39,8 @@ public partial class PositionViewModel : ViewModelBase
 
     public async Task DoubleTappedPositionDataGrid()
     {
-        var PositionVm = ActivatorUtilities.CreateInstance<PositionEditingWindowViewModel>(_serviceProvider, SelectedPosition);
-        var win = ActivatorUtilities.CreateInstance<PositionEditingWindow>(_serviceProvider, PositionVm);
+        var positionVm = ActivatorUtilities.CreateInstance<PositionEditingWindowViewModel>(_serviceProvider, SelectedPosition);
+        var win = ActivatorUtilities.CreateInstance<PositionEditingWindow>(_serviceProvider, positionVm);
         await win.ShowDialog(_currentWindow);
         ShowPositions();
         GetPositions();
diff --git a/AvaloniaApplication14_Inventory_300326/Views/EquipmentEditingWindow.axaml b/AvaloniaApplication14_Inventory_300326/Views/EquipmentEditingWindow.axaml
index a5b45c2..954323a 100644
--- a/AvaloniaApplication14_Inventory_300326/Views/EquipmentEditingWindow.axaml
+++ b/AvaloniaApplication14_Inventory_300326/Views/EquipmentEditingWindow.axaml
@@ -33,7 +33,8 @@
             
             <StackPanel Orientation="Horizontal">
                 <Label Content="Списано ли: "></Label>
-                <CheckBox IsChecked="{Binding IsWrittenOff}"></CheckBox>
+                <CheckBox x:Name="IsWrittenOffCheckBox" IsChecked="{Binding IsWrittenOff}"></CheckBox>
+                <Label x:Name="IsWrittenOffLabel" Content="{Binding IsWrittenOffString}"></Label>
             </StackPanel>
             
             <StackPanel Orientation="Horizontal">
diff --git a/AvaloniaApplication14_Inventory_300326/Views/MainWindow.axaml b/AvaloniaApplication14_Inventory_300326/Views/MainWindow.axaml
index 980ecc9..9a486ef 100644
--- a/AvaloniaApplication14_Inventory_300326/Views/MainWindow.axaml
+++ b/AvaloniaApplication14_Inventory_300326/Views/MainWindow.axaml
@@ -41,16 +41,11 @@
                                                         <DataGridTextColumn Header="ФИО" Binding="{Binding FullName}"></DataGridTextColumn>
                                                         <DataGridTextColumn Header="Должность" Binding="{Binding Position.Name}"></DataGridTextColumn>
                                                 </DataGrid.Columns>
-                                                <DataGrid.ContextMenu>
-                                                        <ContextMenu>
-                                                                <Button Content="Уволить" Command="{Binding FireCommand}"></Button>
-                                                        </ContextMenu>
-                                                </DataGrid.ContextMenu>
                                         </DataGrid>
                                 </ScrollViewer>
                                 
                                 <ScrollViewer Grid.Row="1" x:Name="ScrollViewerDataGridPos">
-                                        <DataGrid x:Name="DataGridPositions" ItemsSource="{Binding PositionViewModel.Positions}" IsReadOnly="True">
+                                        <DataGrid x:Name="DataGridPositions" ItemsSource="{Binding PositionViewModel.Positions}" SelectedItem="{Binding PositionViewModel.SelectedPosition}" IsReadOnly="True">
                                                 <DataGrid.Columns>
                                                         <DataGridTextColumn Header="Название" Binding="{Binding Name}"></DataGridTextColumn>
                                                 </DataGrid.Columns>
@@ -59,7 +54,10 @@
                         </Grid>
                 </TabItem>
                 <TabItem Header="Операции">
-                        
+                        <StackPanel>
+                                <Button Content="Передача техники"></Button>
+                                <Button Content="Списание техники"></Button>
+                        </StackPanel>
                 </TabItem>
                 <TabItem Header="Отчеты">
                         
diff --git a/AvaloniaApplication14_Inventory_300326/Views/PositionEditingWindow.axaml b/AvaloniaApplication14_Inventory_300326/Views/PositionEditingWindow.axaml
index f204c1e..801a1b7 100644
--- a/AvaloniaApplication14_Inventory_300326/Views/PositionEditingWindow.axaml
+++ b/AvaloniaApplication14_Inventory_300326/Views/PositionEditingWindow.axaml
@@ -6,13 +6,15 @@
         mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
         x:Class="AvaloniaApplication14_Inventory_300326.Views.PositionEditingWindow"
         x:DataType="vm:PositionEditingWindowViewModel"
-        Title="PositionEditingWindow">
+        Title="PositionEditingWindow"
+        WindowStartupLocation="CenterOwner"
+        SizeToContent="WidthAndHeight">
         
-        <Grid RowDefinitions="* *" ColumnDefinitions="* *">
+        <Grid RowDefinitions="Auto *" ColumnDefinitions="Auto *">
                 <Label Content="Название должности: "></Label>
-                <TextBox Grid.Row="0" Grid.Column="1"></TextBox>
+                <TextBox Grid.Row="0" Grid.Column="1" Text="{Binding PositionName}"></TextBox>
                 <Button Grid.Row="1" Grid.Column="0" x:Name="ConfirmButton" Command="{Binding ConfirmCommand}"></Button>
-                <Button Grid.Row="1" Grid.Column="1" Command="{Binding CancelCommand}"></Button>
+                <Button Grid.Row="1" Grid.Column="1" Content="Закрыть" Command="{Binding CancelCommand}"></Button>
         </Grid>
         
 </Window>
diff --git a/AvaloniaApplication14_Inventory_300326/Views/PositionEditingWindow.axaml.cs b/AvaloniaApplication14_Inventory_300326/Views/PositionEditingWindow.axaml.cs
index f7ba274..f5d28e1 100644
--- a/AvaloniaApplication14_Inventory_300326/Views/PositionEditingWindow.axaml.cs
+++ b/AvaloniaApplication14_Inventory_300326/Views/PositionEditingWindow.axaml.cs
@@ -1,13 +1,16 @@
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Markup.Xaml;
+using AvaloniaApplication14_Inventory_300326.ViewModels;
 
 namespace AvaloniaApplication14_Inventory_300326.Views;
 
 public partial class PositionEditingWindow : Window
 {
-    public PositionEditingWindow()
+    public PositionEditingWindow(PositionEditingWindowViewModel vm)
     {
+        DataContext = vm;
         InitializeComponent();
+        vm.SetWindow(this);
     }
 }
\ No newline at end of file
diff --git a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/Avalonia/resources b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/Avalonia/resources
index c42e3f4..192d698 100644
Binary files a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/Avalonia/resources and b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/Avalonia/resources differ
diff --git a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.AssemblyInfo.cs b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.AssemblyInfo.cs
index e9c4373..f975b13 100644
--- a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.AssemblyInfo.cs
+++ b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.AssemblyInfo.cs
@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("AvaloniaApplication14_Inventory_300326")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+cca23316ccaf6ff854c560608fe74ea070bdd85a")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+114de77f0db0da5ab82bfb620f42bf9b0cec4498")]
 [assembly: System.Reflection.AssemblyProductAttribute("AvaloniaApplication14_Inventory_300326")]
 [assembly: System.Reflection.AssemblyTitleAttribute("AvaloniaApplication14_Inventory_300326")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
diff --git a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.AssemblyInfoInputs.cache b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.AssemblyInfoInputs.cache
index 649d2e3..95d8086 100644
--- a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.AssemblyInfoInputs.cache
+++ b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.AssemblyInfoInputs.cache
@@ -1 +1 @@
-63e3e38dd183c9ac63856099ca701d49eeb37cffc3fb48b85df28a550d81ee4f
+fda96c39694f07179b132880ffdf1ac5e54167a8724825f882522f81db71ce13
diff --git a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.dll b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.dll
index a8dc561..aebd0c4 100644
Binary files a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.dll and b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.dll differ
diff --git a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.pdb b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.pdb
index d5d029e..d91ca43 100644
Binary files a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.pdb and b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/AvaloniaApplication14_Inventory_300326.pdb differ
diff --git a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/ref/AvaloniaApplication14_Inventory_300326.dll b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/ref/AvaloniaApplication14_Inventory_300326.dll
index 4ab2258..958fa36 100644
Binary files a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/ref/AvaloniaApplication14_Inventory_300326.dll and b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/ref/AvaloniaApplication14_Inventory_300326.dll differ
diff --git a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/refint/AvaloniaApplication14_Inventory_300326.dll b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/refint/AvaloniaApplication14_Inventory_300326.dll
index 4ab2258..958fa36 100644
Binary files a/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/refint/AvaloniaApplication14_Inventory_300326.dll and b/AvaloniaApplication14_Inventory_300326/obj/Debug/net9.0/refint/AvaloniaApplication14_Inventory_300326.dll differ