[Solved] GridViewComboBoxColumn and SelectedIndex

[Martin]

Hello,

I want to insert a GridViewComboBoxColumn from the Code behind. But I want it to bind to the SelectedIndex not the SelectedValue. How can I manage that?

My code

List<string> listtype = new List<string>();
listtype .Add("A");
               listtype .Add("B");
               listtype .Add("V");
               e.Column.IsVisible = false;
               radGridView1.Columns.Remove(e.Column);
               GridViewComboBoxColumn column = new GridViewComboBoxColumn();
               column.ItemsSource = listtype;
               column.UniqueName = e.Column.UniqueName;
               column.DataType = typeof(short);
               column.DataMemberBinding = new System.Windows.Data.Binding(e.Column.UniqueName);
               column.SelectedValueMemberPath = "Id";
               radGridView1.Columns.Add(column);

[Pavel Pavlov]

Hi Martin,

The GridViewComboBox column is designed to work with the selected value only. For your scenario I may recommend the following alternative :

Using the CellTemplate and the CellEditTemplate properties of the  GridViewDataColumn you may place a ComboBox or a RadComboBox in the cell . Inside the template you may adjust your bindings having in mind the DataContext is the business object relevant to the row.

In case you have troubles implementing this , just let me know.

Best wishes,
Pavel Pavlov
the Telerik team

[Martin]

Ok,

I thought there was another way without using the XAML-code.

Thanks
Martin

[Scott]

You can assign the index by poiting the SelectedValueMemberPath to an index of your ItemsSource.

Example:

<telerik:GridViewComboBoxColumn IsReadOnly="False" Header="ISO" DataMemberBinding="{Binding ISOCode}" ValidatesOnDataErrors="Default" 
ItemsSource="{Binding ISOCodes}" SelectedValueMemberPath="{Binding ISOCodes[0]}" />

<telerik:GridViewComboBoxColumn IsReadOnly="False" Header="Cnd." DataMemberBinding="{Binding ConditionCode}" ValidatesOnDataErrors="Default"
ItemsSource="{Binding ConditionCodes}" SelectedValueMemberPath="{Binding ConditionCodes[0]}"  />