01.
using
System.Globalization;
02.
/////////////////////////////////////////////////////////////////
03.
CultureInfo _En =
new
CultureInfo(
"en-US"
);
04.
DateTime dateEn = Convert.ToDateTime(dateTimePicker1.Value, _En);
05.
string
sql =
"select * from tablename where testdate = '"
+ dateEn.ToString(
"yyyy-MM-dd"
, _En)+
"' "
;
06.
07.
CultureInfo _Th =
new
CultureInfo(
"th-TH"
);
08.
DateTime dateTh = Convert.ToDateTime(dateTimePicker1.Value, _Th);
09.
string
sql =
"select * from tablename where testdate = '"
+ dateTh.ToString(
"yyyy-MM-dd"
, _Th)+
"' "
;