Validation on Update/ Insert with AutogenerateColumns=true

[Krutika]

How to achieve validation of required fields and datatype check when AutogenerateCoulmns is set ot TRUE?
I tried looknig at the demo, most of them use templates Asample proj might help thanks!

[Jayesh Goyani]

Hello,

protected void RadGrid1_ItemCreated(object sender, GridItemEventArgs e)
       {
           if (e.Item is GridEditableItem && e.Item.IsInEditMode)
           {
               GridEditableItem editedItem = e.Item as GridEditableItem;
               GridEditManager editMan = editedItem.EditManager;

               GridTextBoxColumnEditor editor = (GridTextBoxColumnEditor)(editMan.GetColumnEditor("Name")); // Name is datafield/columnunique name
               TableCell cell = (TableCell)(((Telerik.Web.UI.GridTextBoxColumnEditor)(editor))).TextBoxControl.Parent;
               TextBox txt = editor.TextBoxControl;
               RequiredFieldValidator validator1 = new RequiredFieldValidator();
              validator1.ID = "rf" + txt.ID;
               validator1.ControlToValidate = txt.ID;
               validator1.ErrorMessage = "Please provide value";
               cell.Controls.Add(validator1);
           }
       }

Thanks,
Jayesh Goyani