Реализация редактирования и удаления компаний и пользователей через конекстное меню.

eCompanies/App.xaml.cs

@@ -41,5 +41,24 @@ namespace eCompanies
             }
         }
 
+        public static void removeCompany(Company c)
+        {
+            using (var db = new CompaniesDBContext())
+            {
+                db.Company.Remove(c);
+                db.SaveChanges();
+            }
+        }
+
+        public static void removeUser(int id)
+        {
+            using (var db = new CompaniesDBContext())
+            {
+                var x = db.Users.Where(s => s.UserId.Equals(id));
+                foreach (Users u in x) db.Users.Remove(u);
+                db.SaveChanges();
+            }
+        }
+
     }
 }

eCompanies/MainWindow.xaml

@@ -7,7 +7,19 @@
         mc:Ignorable="d"
         Title="MainWindow" Height="450" Width="800">
     <Grid>
-        <DataGrid x:Name="companyGrid" HorizontalAlignment="Left" Height="354" Margin="10,55,0,0" VerticalAlignment="Top" Width="772" ItemsSource="{Binding}" AutoGenerateColumns="False" MouseDoubleClick="companyGrid_MouseDoubleClick">
+        <DataGrid x:Name="companyGrid" HorizontalAlignment="Left" Height="399" Margin="10,10,0,0" VerticalAlignment="Top" Width="772" ItemsSource="{Binding}" AutoGenerateColumns="False">
+            <DataGrid.Resources>
+                <ContextMenu x:Key="RowMenu" 
+                    DataContext="{Binding PlacementTarget.DataContext, RelativeSource={RelativeSource Self}}">
+                    <MenuItem Header="Редактировать" Click="RowEdit_Click"/>
+                    <MenuItem Header="Удалить" Click="RowDelete_Click"/>
+                </ContextMenu>
+            </DataGrid.Resources>
+            <DataGrid.RowStyle>
+                <Style TargetType="DataGridRow" >
+                    <Setter Property="ContextMenu" Value="{StaticResource RowMenu}" />
+                </Style>
+            </DataGrid.RowStyle>
             <DataGrid.Columns>
                 <DataGridTextColumn Header="ID" Binding="{Binding CompanyId}" IsReadOnly="True"/>
                 <DataGridTextColumn Header="Название компании" Binding="{Binding Name}" Width="*"/>

eCompanies/MainWindow.xaml.cs

@@ -19,6 +19,7 @@ namespace eCompanies
     /// <summary>
     /// Логика взаимодействия для MainWindow.xaml
     /// </summary>
+    public delegate void UpdateCompanyGridDelegate();
     public partial class MainWindow : Window
     {
         UsersWindow usersWindowInstance = null;
@@ -33,17 +34,27 @@ namespace eCompanies
             companyGrid.DataContext = App.getCompanies();
         }
 
-        private void companyGrid_MouseDoubleClick(object sender, MouseButtonEventArgs e)
+        private void RowEdit_Click(object sender, RoutedEventArgs e)
         {
             try
             {
+                UpdateCompanyGridDelegate d = updateCompanyGrid;
                 Company company = (Company)companyGrid.CurrentItem;
                 if (usersWindowInstance != null) usersWindowInstance.Close();
-                usersWindowInstance = new UsersWindow(company);
+                usersWindowInstance = new UsersWindow(company, d);
                 usersWindowInstance.Show();
             }
             catch { }
         }
 
+        private void RowDelete_Click(object sender, RoutedEventArgs e)
+        {
+            try
+            {
+                Company company = (Company)companyGrid.CurrentItem;
+                App.removeCompany(company);
+            }
+            catch { }
+        }
     }
 }

eCompanies/UsersWindow.xaml

@@ -18,6 +18,17 @@
                 <DataGridTextColumn Header="Логин" Width="*" Binding="{Binding Login}" />
                 <DataGridTextColumn Header="Пароль" Width="*" Binding="{Binding Password}" />
             </DataGrid.Columns>
+            <DataGrid.Resources>
+                <ContextMenu x:Key="RowMenu" 
+                    DataContext="{Binding PlacementTarget.DataContext, RelativeSource={RelativeSource Self}}">
+                    <MenuItem Header="Удалить" Click="RowDelete_Click" />
+                </ContextMenu>
+            </DataGrid.Resources>
+            <DataGrid.RowStyle>
+                <Style TargetType="DataGridRow">
+                    <Setter Property="ContextMenu" Value="{StaticResource RowMenu}" />
+                </Style>
+            </DataGrid.RowStyle>
         </DataGrid>
         <TextBox x:Name="companyNameBox" HorizontalAlignment="Left" Height="40" Margin="10,10,0,0" TextWrapping="Wrap" Text="none" VerticalAlignment="Top" Width="470" FontSize="22"/>
         <ComboBox x:Name="contractStatusComboBox" HorizontalAlignment="Left" Height="40" Margin="490,10,0,0" VerticalAlignment="Top" Width="292" FontSize="22" ItemsSource="{Binding Source={local:EnumBindingSource {x:Type local:Status}}}">

eCompanies/UsersWindow.xaml.cs

@@ -13,34 +13,39 @@ namespace eCompanies
     public partial class UsersWindow : Window
     {
         Company currentCompany;
-        public UsersWindow(Company c)
+        UpdateCompanyGridDelegate updateCompanyGrid;
+        public UsersWindow(Company c, UpdateCompanyGridDelegate d)
         {
             InitializeComponent();
             currentCompany = c;
-            currentCompany.Users = App.getUsers(currentCompany.CompanyId);
+            updateCompanyGrid = d;
-            companyNameBox.Text = c.Name;
+            updateUsersGrid();
-            contractStatusComboBox.SelectedIndex = c.ContractStatus;
-            usersGrid.DataContext = new ObservableCollection<Users>(c.Users.AsEnumerable());
         }
 
-        private void usersGrid_MouseDoubleClick(object sender, MouseButtonEventArgs e)
+        private void updateUsersGrid()
         {
+            currentCompany.Users = App.getUsers(currentCompany.CompanyId);
+            companyNameBox.Text = currentCompany.Name;
+            contractStatusComboBox.SelectedIndex = currentCompany.ContractStatus;
+            usersGrid.DataContext = new ObservableCollection<Users>(currentCompany.Users.AsEnumerable());
         }
         
+
         private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
         {
             MessageBoxResult mbr = MessageBox.Show("Вы закрываете окно с компанией. Хотите сохранить результаты?", "Сохранение изменений", MessageBoxButton.YesNo);
             if (mbr == MessageBoxResult.No)
                 return;
-            currentCompany.ContractStatus = contractStatusComboBox.SelectedIndex;
-            currentCompany.Name = companyNameBox.Text;
             foreach (Users u in (ObservableCollection<Users>)usersGrid.DataContext)
             {
                 u.CompanyId = currentCompany.CompanyId;
                 u.Company = currentCompany;
                 currentCompany.Users.Add(u);
             }
+            currentCompany.ContractStatus = contractStatusComboBox.SelectedIndex;
+            currentCompany.Name = companyNameBox.Text;
             App.updateCompany(currentCompany);
+            updateCompanyGrid();
         }
 
         private void usersGrid_RowEditEnding(object sender, DataGridRowEditEndingEventArgs e)
@@ -50,5 +55,11 @@ namespace eCompanies
         private void usersGrid_AddingNewItem(object sender, AddingNewItemEventArgs e)
         {
         }
+
+        private void RowDelete_Click(object sender, RoutedEventArgs e)
+        {
+            App.removeUser(((Users)usersGrid.CurrentItem).UserId);
+            updateUsersGrid();
+        }
     }
 }