Columns Property (DataGridControl)

In This Topic

Gets a list of the columns contained in the grid.

Syntax

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).

Remarks

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.

Example

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.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.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.

XAML
Visual Basic
C#

<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>

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

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();
}

Supported Frameworks

.NET: net5.0, net5.0-windows, net6.0, net6.0-macos, net6.0-windows, net7.0, net7.0-macos, net7.0-windows, net8.0, net8.0-browser, net8.0-macos, net8.0-windows, net9.0, net9.0-browser, net9.0-macos, net9.0-windows, net10.0, net10.0-browser, net10.0-macos, net10.0-windows.

.NET Framework: net40, net403, net45, net451, net452, net46, net461, net462, net463, net47, net471, net472, net48, net481.

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