GridDropDownColumn

[Kim]

Hi, I am having trouble implementing a simple GridDropDownColumn

<telerik:GridDropDownColumn UniqueName="OrderStatusID" DataField="OrderStatus" ListValueField="Description" ListTextField="ID" Headertext="Order Status" ></telerik:GridDropDownColumn>

First, OrderStatus is not showing in the grid, second, how to I populate the drop down list in code behind? The list contains a list of Items with properties ID and Description


Thanks.

[Angel Petrov]

Hello Kim,

In order to display the OrderStatus in scenarios where a DataSourceID is not defined you should set it as a ListDataMember:

ASPX:

<telerik:GridDropDownColumn UniqueName="OrderStatusID" DataField="OrderStatus" ListDataMember="OrderStatus" ListValueField="Description" ListTextField="ID" Headertext="Order Status" ></telerik:GridDropDownColumn>

As for dynamically populating the drop down this is achievable by following the below listed steps:

1. Subscribe to the OnItemDataBound event of the grid.
2. Obtain a reference to RadComboBox in the edit item.
3. Assign a data source to it and call .DataBind.

For obtaining a reference to the drop down you can use this code:

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
   {
       GridEditableItem editItem = e.Item as GridEditableItem;
       if (editItem != null && editItem.IsInEditMode)
       {
           RadComboBox editItemCombo = editItem["OrderStatusID"].Controls[0] as RadComboBox;
           //Implement data binding logic
       }
   }

Regards,
Angel Petrov
Telerik