//ham lay danh sach transaction theo ngay
public async Task <JsonResult> GetTransactionByDate(string Start, string End)
{
return(await Task.Run <JsonResult>(() =>
{
DateTime start = DateTime.ParseExact(Start + " 00:00", "MM/dd/yyyy HH:mm", CultureInfo.InvariantCulture);
DateTime end = DateTime.ParseExact(End + " 23:59", "MM/dd/yyyy HH:mm", CultureInfo.InvariantCulture);
List <VT_GetTransactionByDate_Result> data = db.VT_GetTransactionByDate(start, end).ToList();
return Json(new { data }, JsonRequestBehavior.AllowGet);
}));
}