" SELECT [Bill_Date],[Total] FROM [Bill] WHERE ([Bill_Date] BETWEEN " + txtstart.DateTime.Date.ToString("MM/dd/yyyy") + " AND " + txtend.DateTime.Date.AddDays(1).ToString("MM/dd/yyyy") + ")";
" SELECT [Bill_Date],[Total] FROM [Bill] WHERE ([Bill_Date] BETWEEN #" + txtstart.DateTime.Date.AddYears(-543).ToString("MM/dd/yyyy") + "# AND #" + txtend.DateTime.Date.AddDays(1).AddYears(-543).ToString("MM/dd/yyyy") + "#)";