protected void RadGrid1_PreRender(object sender, EventArgs e) { if (this.rcbSupplier.SelectedValue == "") { foreach (GridCommandItem cmdItem in RadGrid1.MasterTableView.GetItems(GridItemType.CommandItem)) { RadToolBar rdtlbr = (RadToolBar)cmdItem.FindControl("RadToolBar2"); rdtlbr.FindItemByValue("Delete").Enabled = false; rdtlbr.FindItemByValue("Transfer").Enabled = true; } } else { foreach (GridCommandItem cmdItem in RadGrid1.MasterTableView.GetItems(GridItemType.CommandItem)) { RadToolBar rdtlbr = (RadToolBar)cmdItem.FindControl("RadToolBar2"); rdtlbr.FindItemByValue("Transfer").Enabled = false; } } }