#368 – Specifying Blackout Dates in a Calendar Control

You can use the BlackoutDates property of a Calendar control to specify dates that a user cannot select.

The BlackoutDates property is of type CalendarBlackoutDatesCollection, which is an observable collection of CalendarDateRange objects.  You can specify a set of blackout dates for a Calendar control in XAML by defining a series of CalendarDateRange instances.

        <Calendar Name="calMuseum" SelectionMode="SingleDate">
            <Calendar.BlackoutDates>
                <CalendarDateRange Start="8/6/11" End="8/7/11"/>
                <CalendarDateRange Start="8/20/11" End="8/20/11"/>
                <CalendarDateRange Start="8/28/11" End="8/30/11"/>
            </Calendar.BlackoutDates>
        </Calendar>
        <Label Content="Choose a day to visit the museum." HorizontalContentAlignment="Center" />

The dates specified as blackout dates are not selectable by a user and will appear x‘d out on the calendar.

You can also add specific blackout dates from code-behind.

            // Blackout holidays
            calMuseum.BlackoutDates.Add(new CalendarDateRange(new DateTime(2011,1,17)));
            calMuseum.BlackoutDates.Add(new CalendarDateRange(new DateTime(2011,2,21)));
            calMuseum.BlackoutDates.Add(new CalendarDateRange(new DateTime(2011,5,30)));
            calMuseum.BlackoutDates.Add(new CalendarDateRange(new DateTime(2011,7,4)));
            calMuseum.BlackoutDates.Add(new CalendarDateRange(new DateTime(2011,9,5)));
            calMuseum.BlackoutDates.Add(new CalendarDateRange(new DateTime(2011,10,10)));
            calMuseum.BlackoutDates.Add(new CalendarDateRange(new DateTime(2011,11,11)));
            calMuseum.BlackoutDates.Add(new CalendarDateRange(new DateTime(2011,11,24)));
            calMuseum.BlackoutDates.Add(new CalendarDateRange(new DateTime(2011,12,26)));

About Sean
Software developer in the Twin Cities area, passionate about .NET technologies. Equally passionate about my own personal projects related to family history and preservation of family stories and photos.

2 Responses to #368 – Specifying Blackout Dates in a Calendar Control

  1. Pingback: Dew Drop – August 19, 2011 | Alvin Ashcraft's Morning Dew

  2. Pingback: #1,038 – Another Way to Prevent Certain Dates from Being Selected | 2,000 Things You Should Know About WPF

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