private void ListSoPhieu() { int IDDaiLy = int.Parse(ccbNhaCungCap.Value.ToString()); var KH = DBDataProvider.DB.khKhachHangs.Where(x => x.IDKhachHang == IDDaiLy).FirstOrDefault(); if (KH.LoaiKhachHangID == 3) { ckGiamCongNo.Checked = true; } ckGiamCongNo.Checked = false; var ListGiaoHang = DBDataProvider.ListPhieuGiaoHang_TraHang(IDDaiLy); ccbSoPhieu.DataSource = ListGiaoHang; ccbSoPhieu.DataBind(); }