protected void GridView1_SelectedIndexChanged(object sender, EventArgs e) { Model1 ctx = new Model1(); int avnumber = int.Parse(GridView1.SelectedRow.Cells[1].Text); string itemcode = GridView1.SelectedRow.Cells[2].Text; StoreBusinessLogic.EditAdjust(avnumber, itemcode, "Approved"); lab_successful.Text = "Change Successful"; AdjustmentVoucher A = ctx.AdjustmentVouchers.Where(x => x.AVnumber == avnumber).First(); A.ABName = Session["sign"].ToString(); User u = ctx.Users.Where(x => x.UserName == A.ABName).First(); A.ApproveBy = u.UserID; ctx.SaveChanges(); btn_Notification.Enabled = true; Session["CRName"] = A.CRName; Session["content"] = Session["content"].ToString() + itemcode.ToString() + ","; }