private void btnExport_Click(object sender, EventArgs e) { var sfd = new SaveFileDialog(); if (sfd.ShowDialog() == DialogResult.OK) { var from = (DateTime)dEFrom.EditValue; var to = (DateTime)dEditTo.EditValue; _dataSource.LoadAnnualIssuedAmountForInstitutionsByDateRange(from, to); _report.DataSource = _dataSource.DefaultView; _report.ExportToXlsx(sfd.FileName + ".xlsx"); XtraMessageBox.Show("Finished Exporting"); } }