validate the DropDownList control inside built-in GridDropDownColumn.

[Rahul Barpha]

Hello Friend's

How to validate the DropDownList control inside built-in GridDropDownColumn.
i am not want to use gridtemplatecolumn

 

 

 

[Shinu]

Hello Rahul,

You can get reference to the GridDropdownColumn in the ItemdataBound event and get the editor for the dropdown. Access the cell as shown in the code snippet and assign the validator accordingly. It would be a good idea to use Custom validator for validation.

C#:

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
{
        if (e.Item is GridEditableItem && e.Item.IsInEditMode)
        {
            GridEditableItem item = e.Item as GridEditableItem;
            DropDownList dropDownList1 = item["UserName"].Controls[0] as DropDownList;
           GridDropDownColumnEditor editor=(GridDropDownColumnEditor)item.EditManager.GetColumnEditor("UserName");
            TableCell cell = (TableCell)editor.ContainerControl;
            //Declare the validator
            //Add the validator to the cell
            //cell.Controls.Add(validator);
}

Also checkout the following documentation to know more about this:
Adding a validator to an edit field in Telerik RadGrid

Regards,
Shinu.