To apply client side validation on RadGrid Update or Insert button

Problem: To call any javascript(Client Side) on click of UpdateButton or InsertButton of RadGrid like this image,

Solution: Here is the code

Protected Sub radGrid1_ItemDataBound(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridItemEventArgs) Handles radGrid1.ItemDataBound

        If (TypeOf e.Item Is GridEditableItem) AndAlso (e.Item.IsInEditMode) Then
            Dim edititem As GridEditableItem = DirectCast(e.Item, GridEditableItem)
            Dim BtnUpdate As LinkButton
            If e.Item.OwnerTableView.IsItemInserted Then
                BtnUpdate = DirectCast(edititem.FindControl("PerformInsertButton"), LinkButton)
            Else
                BtnUpdate = DirectCast(edititem.FindControl("UpdateButton"), LinkButton)
            End If
            BtnUpdate.Attributes.Add("OnClick", "return verify_form('form',0)")
        End If

End Sub

Here return verify_form('form',0) is the name of javascript function