You need to set SelectedDate and FirstMonth properties when the date changes in the TextBox.
winCalendar1.FirstMonth = new DateTime( 2006, 07, 04 );
winCalendar1.SelectedDate = new DateTime( 2006, 07, 04 );
This will move the calendar to month of July, and set the highlighted date to the fourth.
Imported from legacy forums. Posted by André (had 301 views)