private void ShowPrintSeries()
{
var psDao = new PrintSeriesDao();
String dt = String.Format("{0:yyyy-MM-dd}", Convert.ToDateTime(currentDateTimePicker.Value));
String dt1 = String.Format("{0:yyyy-MM-dd}", Convert.ToDateTime(toDateTimePicker.Value));
int UserId = (cmbUsername.SelectedItem as Employee).Id;
dgvPrintSeries.AutoGenerateColumns = false;
//dgvPrintSeries.DataSource = psDao.GetAllPrintSeries(dt);
dgvPrintSeries.DataSource = psDao.GetAllPrintSeries(dt, dt1, UserId);
}
