Using ItemsSourceBinding on a System.Data.DataRow

[Steve]

I have a GridViewComboBoxColumn bound to a System.Data.DataRow, and I am having trouble using ItemsSourceBinding to bind the items to another column on the row. If I use ItemsSource I have no trouble - see the sample code below.

How should I be using ItemsSourceBinding for a System.Data.DataRow data context?

public partial class MainWindow : Window
{
    public MainWindow()
    {
        StackPanel stackPanel = new StackPanel();
        stackPanel.Children.Add( CreateItemsSourceGridTelerik_WORKING() );
        stackPanel.Children.Add( CreateItemsSourceGridTelerik_NOTWORKING() );
        Content = stackPanel;
    }

    public class Node
    {
        public string Description { get; set; }
        public string Code { get; set; }
    }

    RadGridView CreateItemsSourceGridTelerik_WORKING()
    {
        RadGridView grid = new RadGridView { AutoGenerateColumns = false };

        grid.Columns.Add( new GridViewComboBoxColumn
        {
            DataMemberBinding = new Binding( "Column" ),
            DisplayMemberPath = "Description",
            SelectedValueMemberPath = "Code",
            ItemsSource = new Node[] {
                new Node { Description = "One", Code = "1" },
                new Node { Description = "Two", Code = "2" }
            },
        } );

        DataTable table = new DataTable();
        table.Columns.Add( "Column" );

        DataRow row = table.NewRow();
        table.Rows.Add( row );
        row[ "Column" ] = "2";

        grid.ItemsSource = table.DefaultView;

        return grid;
    }

    RadGridView CreateItemsSourceGridTelerik_NOTWORKING()
    {
        RadGridView grid = new RadGridView { AutoGenerateColumns = false };

        grid.Columns.Add( new GridViewComboBoxColumn
        {
            DataMemberBinding = new Binding( "Column" ),
            DisplayMemberPath = "Description",
            SelectedValueMemberPath = "Code",
            ItemsSourceBinding = new Binding( "ColumnItems" ),
        } );

        DataTable table = new DataTable();
        table.Columns.Add( "Column" );
        table.Columns.Add( "ColumnItems" );

        DataRow row = table.NewRow();
        table.Rows.Add( row );
        row[ "Column" ] = "2";
        row[ "ColumnItems" ] = new Node[] {
            new Node { Description = "One", Code = "1" },
            new Node { Description = "Two", Code = "2" }
        };

        grid.ItemsSource = table.DefaultView;

        return grid;
    }
}

[Maya]

Hi Steve,

You need to define the type of the ColumnItems collection:

RadGridView CreateItemsSourceGridTelerik_NOTWORKING()
{
    DataTable table = new DataTable();
    table.Columns.Add("Column");
    table.Columns.Add("ColumnItems", typeof(Node[]));
}

Regards,
Maya
the Telerik team

[Steve]

Thanks, that works.   For an items source of an anonymous type, typeof( IEnumerable ) seems to be enough for Telerik to work with.