private void button1_Click(object sender, EventArgs e)
{
List <esp_IzlaziByDatum_Result1> ds = DANekretnine.SelectProdajaByDatum(dateTimePicker1.Value, dateTimePicker2.Value);
ReportDataSource rds = new ReportDataSource("DataSet1", ds);
reportViewer1.LocalReport.DataSources.Clear();
reportViewer1.LocalReport.DataSources.Add(rds);
//reportViewer1.LocalReport.SetParameters(new ReportParameter("DatumOd", dateTimePicker1.Value.ToShortDateString()));
//reportViewer1.LocalReport.SetParameters(new ReportParameter("DatumDo", dateTimePicker2.Value.ToShortDateString()));
reportViewer1.RefreshReport();
}