public DataTable GetCreditHistory(string area_code, string user, string from, string end)
{
// int listid = int.Parse(list_code);
//int area_id = area_code;
DateTime from_date = ReturnDate(from, 1);
DateTime end_date = ReturnDate(end, 2);
data_table = data_file.GetCreditHistory(area_code, user, from_date, end_date);
return(data_table);
}
