Home / Community & Support / Developer Productivity Tools Forums / WPF > Calendar > Refresh calendar (reselecting datatemplate)

• Kasper Schou

  Posted on Apr 8, 2011 (permalink)

  Hi Telerik,
  
  I'm having trouble getting the calendar to reselect template for the calendarbuttoncontent after initial load.
  
  I've found that if I "browse" the calendar (so that the content is not shown) and back again, the template is reapplied, using updated information in my behind lists of dates.
  
  I have created the following template selector:
  
  

  public class CalendarButtonTemplateSelector : DataTemplateSelector

  {

      public override DataTemplate SelectTemplate(object item, DependencyObject container)

      {

          CalendarButtonContent content = item as CalendarButtonContent;

          if (content != null && content.ButtonType == CalendarButtonType.Date)

          {

              if (CentralCalendarWindow.CalendarViewItems != null && CentralCalendarWindow.CalendarViewItems.Exists(c => c.Date == content.Date))

              {

                  CalendarViewItem calendarViewItem = CentralCalendarWindow.CalendarViewItems.Find(c => c.Date == content.Date);

                  if (calendarViewItem.Holiday)

                  {

                      return HolidayTemplate;

                  }

                  else if (calendarViewItem.NoDistribution)

                  {

                      return NoDistributionTemplate;

                  }

                  else if (calendarViewItem.PartlyNoDistribution)

                  {

                      return PartlyNoDistributionTemplate;           

                  }

              }

          }

          return DefaultTemplate;

      }

      public DataTemplate DefaultTemplate { get; set; }

      public DataTemplate HolidayTemplate { get; set; }

      public DataTemplate NoDistributionTemplate { get; set; }

      public DataTemplate PartlyNoDistributionTemplate { get; set; }

  }

  
  In XAML i bind to the selector as a static resource like this:
  
  

  DayTemplateSelector="{StaticResource templateSelector}"

  
  And my template selection is like this:
  
  

  <this:CalendarButtonTemplateSelector x:Key="templateSelector"

        DefaultTemplate="{StaticResource dataTemplateDefault}"

        HolidayTemplate="{StaticResource dataTemplateHoliday}"

        NoDistributionTemplate="{StaticResource dataTemplateNoDistribution}"

        PartlyNoDistributionTemplate="{StaticResource dataTemplatePartlyNoDistribution}"/>

  
  
  Now the question - How can I explicitly have the calendar redo its template selection, like it does when the content gets redrawn when "browsing" the calendar.
  
  And what I would really want to do is to only redo the template selection on specific days if possible.
  
  Thanks in advance!
  Best regards,
  Kasper Schou
  

  Reply

• Kasper Schou

  Posted on Apr 8, 2011 (permalink)

  Just to clarify, the following code will reapply the template selection:
  
  

  DateTime current = _calendar.DisplayDate;

  _calendar.DisplayDate = current.AddYears(1);

  _calendar.DisplayDate = current;

  
  But obviously I'm not very fond of using the above in my solution :)
  
  /Kasper

  Reply

• Answer Kaloyan Kaloyan

  Posted on Apr 14, 2011 (permalink)

  Hi Kasper Schou,
  
  Sorry for the late response. What you can do is as follows:
  
  

  var currentSelector = calendar.DayTemplateSelector;

  calendar.DayTemplateSelector = null;

  calendar.DayTemplateSelector = currentSelector;

  
  
  Kind regards,
  Kaloyan
  the Telerik team

  Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items

  Reply

• Kasper Schou

  Posted on Apr 14, 2011 (permalink)

  Hi Kaloyan,
  
  Thank you for the reply, this is somewhat more pretty and works just fine :)
  
  Best regards,
  Kasper Schou

  Reply

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