protected void imgBtnUpcomingOrders_Click(object sender, ImageClickEventArgs e) { imgBtnReadyToShip.ImageUrl = "~/App/Images/readytoship-tab-off.gif"; imgBtnDelivered.ImageUrl = "~/App/Images/Delivered-tab-off.gif"; imgBtnUpcomingOrders.ImageUrl = "~/App/Images/Upcoming-tab-on.gif"; var otherDal = new OtherDAL(); DataSet ds = otherDal.SearchOrderForUpcomingEvents(); BindOrderList(ds); dgManageOrder.Columns[7].Visible = false; }