protected void btn_Order_Click(object sender, ImageClickEventArgs e) { foreach (GridViewRow row in GridView1.Rows) { TextBox textOrder = (TextBox)row.FindControl("txtModulesOrder"); int cOrder = Convert.ToInt32(textOrder.Text); int cateID = Convert.ToInt32(row.Cells[0].Text); ModulesBSO modulesBSO = new ModulesBSO(); modulesBSO.ModulesUpOrder(cateID, cOrder); } ViewModules(); }