CellEditorBindingExtension Class
See Also  Members   Example 
Xceed.Wpf.DataGrid Assembly > Xceed.Wpf.DataGrid.Markup Namespace : CellEditorBindingExtension Class

Interprets and creates the binding required between a cell and its editor at runtime.

Syntax

Visual Basic (Declaration) 
<MarkupExtensionReturnTypeAttribute(System.Object)>
Public Class CellEditorBindingExtension 
   Inherits MarkupExtension
C# 
[MarkupExtensionReturnTypeAttribute(System.Object)]
public class CellEditorBindingExtension : MarkupExtension

Example

All examples in this topic assume that the grid is bound to the Orders table of the Northwind database, unless stated otherwise.
The following examples demonstrates how to change the edit template of the cell editor for the ShipVia column to a Slider control.
XAMLCopy Code
<Grid xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid"> 
  <Grid.Resources> 
    <xcdg:DataGridCollectionViewSource x:Key="cvs_orders" 
                                    Source="{Binding Source={x:Static Application.Current}, 
                                                      Path=Orders}"/> 
  </Grid.Resources> 
  <xcdg:DataGridControl x:Name="OrdersGrid" 
                        ItemsSource="{Binding Source={StaticResource cvs_orders}}"> 
    <xcdg:DataGridControl.Columns> 
 
     <xcdg:Column FieldName="ShipVia"> 
       <xcdg:Column.CellEditor> 
         <xcdg:CellEditor> 
           <xcdg:CellEditor.EditTemplate> 
             <DataTemplate> 
               <Slider Value="{xcdg:CellEditorBinding}" Minimum="1" Maximum="3"/> 
             </DataTemplate> 
           </xcdg:CellEditor.EditTemplate> 
           <xcdg:CellEditor.ActivationGestures> 
             <xcdg:KeyActivationGesture Key="Right"/> 
             <xcdg:KeyActivationGesture Key="Left"/> 
           </xcdg:CellEditor.ActivationGestures> 
         </xcdg:CellEditor> 
       </xcdg:Column.CellEditor> 
     </xcdg:Column> 
    </xcdg:DataGridControl.Columns> 
  </xcdg:DataGridControl> 
</Grid>
The following example demonstrates how to change the edit template of the cell editor for the Freight column to a custom calculator control. The C# code for the Calculate method called in the buttons' Click event simply calculates the new equation and is not provided. To shorten the code, some of the Button and KeyActivationGesture declarations have been removed.
XAMLCopy Code
<Grid xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid"> 
  <Grid.Resources> 
    <xcdg:DataGridCollectionViewSource x:Key="cvs_orders" 
                                    Source="{Binding Source={x:Static Application.Current}, 
                                                      Path=Orders}"/> 
  </Grid.Resources> 
   <xcdg:DataGridControl x:Name="OrdersGrid" 
                         ItemsSource="{Binding Source={StaticResource cvs_orders}}"> 
      <xcdg:DataGridControl.Columns> 
 
        <xcdg:Column FieldName="Freight"> 
           <xcdg:Column.CellEditor> 
              <xcdg:CellEditor> 
                 <xcdg:CellEditor.EditTemplate> 
                    <DataTemplate> 
                        <DockPanel> 
                           <TextBlock x:Name="actual_value" 
                                     Text="{xcdg:CellEditorBinding}" 
                                      DockPanel.Dock="Top"/> 
                           <UniformGrid Columns="4" x:Name="parentPanel" 
                                        Tag="{Binding ElementName=actual_value, 
                                                      Path=Text, 
                                                      Mode=TwoWay, 
                                                      UpdateSourceTrigger=PropertyChanged}" 
                                        Button.Click="Calculate" 
                                        DockPanel.Dock="Top"> 
                              <Button x:Name="seven" Content="7"/> 
                              <!-- ... --> 
                              <Button x:Name="addition" Content="+"/> 
                           </UniformGrid> 
                           <TextBlock x:Name="current_equation" DockPanel.Dock="Bottom"/> 
                         </DockPanel> 
                     </DataTemplate> 
                 </xcdg:CellEditor.EditTemplate> 
                 <xcdg:CellEditor.ActivationGestures> 
                    <xcdg:KeyActivationGesture Key="NumPad0"/> 
                    <!-- ... --> 
                    <xcdg:KeyActivationGesture Key="NumPad9"/> 
                 </xcdg:CellEditor.ActivationGestures> 
              </xcdg:CellEditor> 
           </xcdg:Column.CellEditor> 
        </xcdg:Column> 
      </xcdg:DataGridControl.Columns> 
   </xcdg:DataGridControl> 
</Grid>
The following example demonstrates how to provide a default cell editor for columns that have an Int32 data type.
XAMLCopy Code
<Grid xmlns:xcdg="http://schemas.xceed.com/wpf/xaml/datagrid" 
      xmlns:s="clr-namespace:System;assembly=mscorlib"> 
  <Grid.Resources> 
    <xcdg:DataGridCollectionViewSource x:Key="cvs_orders" 
                                    Source="{Binding Source={x:Static Application.Current}, 
                                                      Path=Orders}"/> 
  </Grid.Resources> 
  <xcdg:DataGridControl x:Name="OrdersGrid" 
                        ItemsSource="{Binding Source={StaticResource cvs_orders}}"> 
 
   <xcdg:DataGridControl.DefaultCellEditors> 
     <xcdg:CellEditor x:Key="{x:Type s:Int32}"> 
       <xcdg:CellEditor.EditTemplate> 
         <DataTemplate> 
           <Slider Value="{xcdg:CellEditorBinding}"/> 
         </DataTemplate> 
       </xcdg:CellEditor.EditTemplate> 
     </xcdg:CellEditor> 
   </xcdg:DataGridControl.DefaultCellEditors> 
  </xcdg:DataGridControl> 
</Grid>

Inheritance Hierarchy

System.Object
   System.Windows.Markup.MarkupExtension
      Xceed.Wpf.DataGrid.Markup.CellEditorBindingExtension

Requirements

Supported Operating Systems: Windows Server 2003 Service Pack 1; Windows Vista; Windows XP Service Pack 2

See Also