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GridDropDownColumn

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GridView
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Kim
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Kim asked on 28 Oct 2013, 03:38 AM
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.





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Angel Petrov
Telerik team
answered on 30 Oct 2013, 02:11 PM
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
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Kim
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Angel Petrov
Telerik team
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