Whenever I try to set the MajorTickLength property on the DayViewDefinition class in XAML, it freezes my visual studio.

After waiting a few minutes the designer gave me this error:

System.OutOfMemoryException
Exception of type 'System.OutOfMemoryException' was thrown.
   at Telerik.Windows.Controls.TimeRulerViewModel.CreateTicks(TimeSpan duration, DateData date) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\ScheduleView\ScheduleView\Helpers\TimeRulerViewModel.cs:line 136
   at Telerik.Windows.Controls.TimeRulerViewModel.CreateData(DateTime date) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\ScheduleView\ScheduleView\Helpers\TimeRulerViewModel.cs:line 117
   at Telerik.Windows.Controls.TimeRulerViewModel.GenerateDates() in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\ScheduleView\ScheduleView\Helpers\TimeRulerViewModel.cs:line 98
   at Telerik.Windows.Controls.ScheduleViewBase.TimeRulerHelper.GenerateItems() in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\ScheduleView.TimeRulerHelper.cs:line 311
   at Telerik.Windows.Controls.ScheduleViewBase.TimeRulerHelper.PrepareTicksAndDates() in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\ScheduleView.TimeRulerHelper.cs:line 224
   at Telerik.Windows.Controls.ScheduleViewBase.TimeRulerHelper.InitializeRecycleHelpers(UIElementCollection internalChildren, Double availableLength) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\ScheduleView.TimeRulerHelper.cs:line 256
   at Telerik.Windows.Controls.TimeRulerPanel.MeasureOverride(Size availableSize) in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\ScheduleView\ScheduleView\Controls\TimeRulerPanel.cs:line 164
   at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
   at System.Windows.UIElement.Measure(Size availableSize)
   at System.Windows.ContextLayoutManager.UpdateLayout()
   at System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
   at System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork()
   at System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
   at System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object resizedCompositionTarget)
   at System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)

Hello Shawn,

Thank you for writing to us and reporting this issue with the Visual Studio designer.  We've already logged it for fixing, but at the moment I cannot commit to a certain timeframe for providing the fix.

We are sorry for any inconvenience caused.

Greetings,
Yana
the Telerik team

Dear Telerik, 

We are using  RadControls for Silverlight Q1 2013 and we are experiencing the same issue. Have you fixed this issue ? Kindly advise. Thanks. 

Hello Muhammad,

This fix is not included in the Q1 2013 release - it was delayed due to more urgent tasks.

All the best,
Yana
the Telerik team