By default, the SingleSel property is False, which means that the user can select multiple dates. The SelCount property counts the dates being selected in the calendar panel. The AllowSelectDate property indicates the keys combination so the user can select new dates in the calendar panel, and so, new dates to be shown in the schedule view. The  AllowSelectDateRect specifies the keys combination so the user can do a rectangular selection in the calendar panel. Use the Selection/SelectDate property to change programmatically the dates being selected in the calendar, including the dates to be shown in the schedule view. You can use the Selection/SelCount/SelDate property to retrieve the selected dates.  Once the user starts selecting a new date in the calendar panel, the control fires the LayoutStartChanging(exCalendarSelectionChange). Once a new date is selected, the LayoutEndChanging(exCalendarSelectionChange) event occurs. The DateFromPoint property indicates the date in the calendar panel from the cursor. The /NET and /WPF configurations provides the SelDates property equivalent of Selection, instead the SelDates returns a collection od DateTime objects (public virtual List<DateTime> SelDates). The ClipToSel property indicates whether the control clips the schedule panel to view the selected dates only.

The following samples show how you can enumerate the selected dates, in the calendar panel, once the LayoutEndChanging(exCalendarSelectionChange) event occurs.

VB

Private Sub Schedule1_LayoutEndChanging(ByVal Operation As EXSCHEDULELibCtl.LayoutChangingEnum)
    If Operation = exCalendarSelectionChange Then
        Dim d As Variant
        For Each d In Schedule1.Calendar.Selection
            Debug.Print "Select: " & d
        Next
    End If
End Sub

VB/NET

Private Sub Exschedule1_LayoutEndChanging(ByVal sender As System.Object, ByVal Operation As exontrol.EXSCHEDULELib.LayoutChangingEnum) Handles Exschedule1.LayoutEndChanging
    If Operation = exontrol.EXSCHEDULELib.LayoutChangingEnum.exCalendarSelectionChange Then
        For Each d As DateTime In Exschedule1.Calendar.SelDates
            Debug.Print(d.ToString())
        Next
    End If
End Sub

or:

Private Sub Exschedule1_LayoutEndChanging(ByVal sender As System.Object, ByVal Operation As exontrol.EXSCHEDULELib.LayoutChangingEnum) Handles Exschedule1.LayoutEndChanging
    If Operation = exontrol.EXSCHEDULELib.LayoutChangingEnum.exCalendarSelectionChange Then
        For Each d As DateTime In Exschedule1.Calendar.Selection
            Debug.Print(d.ToString())
        Next
    End If
End Sub

C#

private void exschedule1_LayoutEndChanging(object sender, exontrol.EXSCHEDULELib.LayoutChangingEnum Operation)
{
    if ( Operation == exontrol.EXSCHEDULELib.LayoutChangingEnum.exCalendarSelectionChange  )
    {
        foreach (DateTime d in exschedule1.Calendar.SelDates)
            System.Diagnostics.Debug.Print(d.ToString());
    }
}

or:

private void exschedule1_LayoutEndChanging(object sender, exontrol.EXSCHEDULELib.LayoutChangingEnum Operation)
{
    if ( Operation == exontrol.EXSCHEDULELib.LayoutChangingEnum.exCalendarSelectionChange  )
    {
        foreach (DateTime d in exschedule1.Calendar.Selection as Array)
            System.Diagnostics.Debug.Print(d.ToString());
    }
}

VFP

*** ActiveX Control Event ***
LPARAMETERS operation
*	1 ' exCalendarSelectionChange
    If Operation = 1 Then
    	for i = 0 to thisform.Schedule1.Calendar.SelCount() - 1
    		wait window TToC(thisform.Schedule1.Calendar.SelDate(i))
    	next
    EndIf

C++

void LayoutEndChangingSchedule1(long Operation)
{
	if ( Operation == EXSCHEDULELib::exCalendarSelectionChange )
	{
		_variant_t selection = m_spSchedule->Calendar->Selection;
		if ( V_VT( &selection ) == ( VT_ARRAY | VT_VARIANT ) )
		{
			BYTE* p = NULL;
			long nCount = 0;
			if ( SUCCEEDED( SafeArrayGetUBound( V_ARRAY( &selection ), 1, &nCount ) ) )
			{
				if ( SUCCEEDED( SafeArrayAccessData( V_ARRAY( &selection ), (LPVOID*)&p ) ) )
				{
					for ( long i = 0; i < nCount + 1; i++, p += sizeof(VARIANT) )
					{
						VARIANT* pValue = (VARIANT*)p;
						if ( V_VT( pValue ) == VT_DATE )
						{
							CString strMessage;
							strMessage.Format( _T("Select: %f\r\n"), V_DATE( pValue ) );
							OutputDebugString( strMessage );
						}
					}
					SafeArrayUnaccessData( V_ARRAY( &selection ) );
				}
			}
		}
	}
}

where m_spSchedule is of EXSCHEDULELib::ISchedulePtr type.