Calander with Special Days displays incorrect days

[Shawn]

I have a project that uses the SpecialDays Property on the RadCalendar. The calendar will consistently display incorrectly when the user changes months. I have created a test project to replicate the issue. 

SpecialDays.png displays the month of April with six special days. When the user changes to March and then back to April we end up with a screen like SpecialDaysAfter.png. In this state the calendar is incorrectly displaying the previous months dates and just replacing the special days. From this point on, all other months display incorrectly as well.

You can download my test project here.

Is there a way to fix this behavior? Am I incorrectly using the special days?

Regards,
Shawn

[Yana]

Hi Shawn,

Thank you for providing the project. Indeed, the templates are not updated properly. However, we will need some additional time to further research the case. I will write again as soon as we have a result.

Regards,
Yana
Telerik

 

 

[Shawn]

Hello Yana,

I have discovered a work around for the issue:

Subscribe to the DisplayDateChanged event on the calendar. In the event set the SpecialDays to an empty List of DateTimes. And then set it back to the actual list of special days. This seems to reset the calendar and it properly displays the special days.

private void uxCalendar_DisplayDateChanged(object sender, Telerik.Windows.Controls.Calendar.CalendarDateChangedEventArgs e)
        {
           // whenever we change a month we need to clear the special days list
           // and then we need to set it back to what it's supposed to be
           // http://www.telerik.com/forums/calander-with-special-days-displays-incorrect-days
           uxCalendar.SetValue(RadCalendarBehavior.SpecialDaysProperty, new List<DateTime>());
           uxCalendar.SetValue(RadCalendarBehavior.SpecialDaysProperty, SpecialDays);
        }

Regards,
Shawn

[Kirk]

Are there any updates on this issue? The work around seems to have stopped working as well. I haven't spent any time to try to figure out why yet, I wanted to check on the status first.

[Kalin]

Hello Kirk,

When using a custom DayTemplateSelector you should define and return a default template instead of the returning base.SelectTemplate as it is always returns null. That was the issue with the provided project - I have modified it in order to include a default template and return it instead of the base. Please try the same approach and let me know if it helps.

Hope this helps.

Regards,
Kalin
Telerik