如何剔一個CheckBoxColumn，當​​我在WPF選擇在DataGrid行保存在數據庫中

Question

我的DataGrid列表中的聯繫人：

<DataGrid ItemsSource="{Binding ContactsView}" 
      Grid.Row="2" Grid.Column="0" Grid.ColumnSpan="2" 
      x:Name="contactsDataGrid" AutoGenerateColumns="False" 
      EnableRowVirtualization="True" Padding="10" 
      CanUserAddRows="False" 
      RowDetailsVisibilityMode="VisibleWhenSelected" 
      SelectionChanged="contactsDataGrid_SelectionChanged"> 
    <DataGrid.Columns> 
     <DataGridCheckBoxColumn Header="Select" Width="50" /> 
     <DataGridTextColumn Binding="{Binding Salutation}" Header="Salut." /> 
     <DataGridTextColumn Binding="{Binding FirstName}" Header="First Name" /> 
     <DataGridTextColumn Binding="{Binding LastName}" Header="Last Name" /> 
     <DataGridTextColumn Binding="{Binding EmailAddress}" Header="Email Address" /> 
     <DataGridTextColumn Binding="{Binding Mobile}" Header="Mobile Number" /> 
     <DataGridTextColumn Binding="{Binding BroadDesignation}" Header="Broad Designation" /> 
     <DataGridTextColumn Binding="{Binding Designation}" Header="Designation" /> 
    </DataGrid.Columns> 
</DataGrid> 

用戶應通過點擊它選擇一行。當選擇時，該聯繫人添加到稍後使用的另一個列表：

private List<Contact> SelectedContacts = new List<Contact>(); 
private void contactsDataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e) 
{ 
    DataGrid ThisGrid = (DataGrid)sender;    
    Contact SelectedContact = (Contact)ThisGrid.SelectedItem; 

    if (!SelectedContacts.Contains(SelectedContact)) 
     SelectedContacts.Add(SelectedContact); 
} 

我怎樣才能讓這個當用戶進行了選擇，CheckBoxColumn改變的狀態下複選框被選中以便用戶知道他們已經選擇了那一行？

Answer 1

我會爲您的課程添加另一個屬性，名稱爲IsSelected。在SelectionChanged方法中，您只需將該屬性設置爲true並刷新數據網格即可。

像下面這樣（未測試）：

private void contactsDataGrid_SelectionChanged(object sender, SelectionChangedEventArgs e) 
{ 
    DataGrid ThisGrid = (DataGrid)sender;    
    Contact SelectedContact = (Contact)ThisGrid.SelectedItem; 
    SelectedContact.IsSelected = true; 
    contactsDataGrid.Items.Refresh(); 

    if (!SelectedContacts.Contains(SelectedContact)) 
     SelectedContacts.Add(SelectedContact); 
}