Columns Property (DataGridControl)

Visual Basic
C#

'Declaration
 
Public ReadOnly Property Columns As ColumnCollection

'Usage
 
Dim instance As DataGridControl
Dim value As ColumnCollection
 
value = instance.Columns

public ColumnCollection Columns {get;}

Property Value

A reference to a ColumnCollection containing a list of the grid's columns. By default, a null reference (Nothing in Visual Basic).

All columns, regardless of their state, will be contained in the collection. To retrieve the columns that are only visible in the grid's viewport, consult the VisibleColumns property.

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

<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.

Visual Basic

Private Sub Button_Click( ByVal sender As Object, ByVal e As RoutedEventArgs )
  Dim cell As Cell = Cell.FindFromChild( TryCast( sender, DependencyObject ) )

  Dim editor As New ProductsEditorWindow( TryCast( DataGridControl.GetParentDataGridControl( cell ).GetItemFromContainer( cell.ParentRow ), DataRowView ) )

  editor.ShowDialog()
End Sub

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.

C#

private void Button_Click( object sender, RoutedEventArgs e )
{
  Cell cell = Cell.FindFromChild( sender as DependencyObject );

  ProductsEditorWindow editor = new ProductsEditorWindow( DataGridControl.GetParentDataGridControl( cell ).GetItemFromContainer( cell.ParentRow ) as DataRowView );

  editor.ShowDialog();
}

Target Platforms: Windows 11, Windows 10, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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