protected void Button1_Click(object sender, EventArgs e) { string key = txtSearch.Text; if (key.Equals("")) { labMes.Text = "Tìm kiếm rỗng"; } else { labMes.Text = ""; } List <DTO.Order> lst = Order_BUS.getOrderByKey(key); if (lst != null) { var obj = lst.Select((item, index) => { return(new { OrderCode = item.OrderCode, CustomerName = item.CustomerName, CustomerPhone = item.CustomerPhone, CustomerAddress = item.CustomerAddress, Note = item.Note, IsHidden = (item.IsHidden) ? true : false, PayMethod = (item.PayMethod == 1) ? "Thanh toán tiền mặt" : "Thanh toán qua thẻ tín dụng", CreateDate = Convert.ToString(item.CreatedDate), State = (item.State == 1) ? "Đã xử lý" : "Mới", CompletedDate = Convert.ToString(item.CompletedDate), LinkDetail = "OrderDetail.aspx?OrderID=" + item.OrderID, textUpdate = (item.State == 1) ? "" : "Xử lý xong", linkUpdate = (item.State == 1) ? "" : "updateOrder.aspx?OrderID=" + item.OrderID + "&state=" + item.State }); }); GridView1.DataSource = obj; GridView1.DataBind(); labMes.Text = ""; } else { labMes.Text = "Không có hoá đơn có thông tin: " + key; } }