private void ddlDriver_SelectedIndexChanged(object sender, Telerik.WinControls.UI.Data.PositionChangedEventArgs e) { try { int DriverId = ddlDriver.SelectedValue.ToInt(); int Month = ddlWeekMonths.SelectedIndex.ToInt(); ComboFunctions.FillDriverDates(ddlDates, c => c.DriverId == DriverId && c.FromDate.Value.Month == Month); } catch (Exception ex) { } }