protected void btnPisma_Click(object sender, EventArgs e) { using (PoslovniKlubBL temp = new PoslovniKlubBL()) { //DateTime start = Convert.ToDateTime(txtOD.Text); DateTime start = DateTime.ParseExact(txtOD.Text, "dd.MM.yyyy", CultureInfo.InvariantCulture); DateTime end = DateTime.ParseExact(txtDO.Text, "dd.MM.yyyy", CultureInfo.InvariantCulture); txtbrPisama.Text = Convert.ToString(temp.getBrPisama(start, end)); } }