Is it Possible to Restrict the Dates that are Selected in Windows Forms MonthCalendarAdv(Classic)

Yes, we can restrict the dates that are selected. If you want to allow the user to select only Mondays on the calendar, you can set Clickable property to false for other days except Monday using DateCellQueryInfo event handler.

void monthCalendarAdv1_DateCellQueryInfo(object sender, DateCellQueryInfoEventArgs e)

{

    // if not Monday 

    if (e.ColIndex != 2)

    {

        e.Style.Clickable = false;

        e.Style.Enabled = false;

    }

}
Private Sub monthCalendarAdv1_DateCellQueryInfo(ByVal sender As Object, ByVal e As DateCellQueryInfoEventArgs)

    ' if not Monday 

    If e.ColIndex <> 2 Then

        e.Style.Clickable = False

        e.Style.Enabled = False

    End If

End Sub