Defining Unbound Columns

The following example demonstrates how to use an unbound column to display a button that, when clicked, will display an editor through which the corresponding data item can be edited.

XAML	Copy Code
<Grid xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid"> <Grid.Resources> <xcdg:DataGridCollectionViewSource x:Key="cvs_products" Source="{Binding Source={x:Static Application.Current}, Path=Products}" /> </Grid.Resources> <xcdg:DataGridControl x:Name="OrdersGrid" ItemsSource="{Binding Source={StaticResource cvs_products}}"> <xcdg:DataGridControl.Columns> <xcdg:UnboundColumn FieldName="EditRowColumn" Width="30" MinWidth="30" MaxWidth="30"> <xcdg:UnboundColumn.CellContentTemplate> <DataTemplate> <Button Click="Button_Click" Content="..." /> </DataTemplate> </xcdg:UnboundColumn.CellContentTemplate> </xcdg:UnboundColumn> <xcdg:Column FieldName="Photo" Visible="False" /> </xcdg:DataGridControl.Columns> </xcdg:DataGridControl> </Grid>

XAML

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<Grid xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid">
  <Grid.Resources>
     <xcdg:DataGridCollectionViewSource x:Key="cvs_products"
                                        Source="{Binding Source={x:Static Application.Current}, Path=Products}" />
  </Grid.Resources>
  <xcdg:DataGridControl x:Name="OrdersGrid"
                        ItemsSource="{Binding Source={StaticResource cvs_products}}">
     <xcdg:DataGridControl.Columns>
       <xcdg:UnboundColumn FieldName="EditRowColumn"
                           Width="30"
                           MinWidth="30"
                           MaxWidth="30">
          <xcdg:UnboundColumn.CellContentTemplate>
             <DataTemplate>
                <Button Click="Button_Click"
                        Content="..." />
             </DataTemplate>
          </xcdg:UnboundColumn.CellContentTemplate>
       </xcdg:UnboundColumn>
        <xcdg:Column FieldName="Photo"
                     Visible="False" />
     </xcdg:DataGridControl.Columns>
  </xcdg:DataGridControl>
</Grid>

The following code provides the implementation of the Button_Click event. The ProductsEditorWindow derives from Window and allows the data item to be edited. The code for the ProductsEditorWindow is not provided.

VB.NET	Copy Code
Private Sub Button_Click( ByVal sender As Object, ByVal e As RoutedEventArgs ) Dim button = TryCast( sender, Button ) Dim cell = TryCast( buttom.GetValue( Cell.ParentCellProperty), Cell ) Dim editor = New ProductsEditorWindow( TryCast( cell.DataContext, DataRowView ) ) editor.ShowDialog() End Sub

VB.NET

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Private Sub Button_Click( ByVal sender As Object, ByVal e As RoutedEventArgs )
  Dim button = TryCast( sender, Button )
  Dim cell = TryCast( buttom.GetValue( Cell.ParentCellProperty), Cell )
  Dim editor = New ProductsEditorWindow( TryCast( cell.DataContext, DataRowView ) )
  editor.ShowDialog()
End Sub

C#	Copy Code
private void Button_Click( object sender, RoutedEventArgs e ) { var button = sender as Button; var cell = button.GetValue( Cell.ParentCellProperty ) as Cell; var editor = new ProductsEditorWindow( cell.DataContext as DataRowView ); editor.ShowDialog(); }

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private void Button_Click( object sender, RoutedEventArgs e )
{
  var button = sender as Button;
  var cell = button.GetValue( Cell.ParentCellProperty ) as Cell;
  var editor = new ProductsEditorWindow( cell.DataContext as DataRowView );
  editor.ShowDialog();
}