Bug when bound to ObservableCollection

[Craig Dean]

When bound to an observable collection, and once the collection has been modified programattically, the RadComboBox crashes when selecting an item in it (even if currently selected item...).  This does not happen with swapped with standard SilverLight ComboBox.

{System.Exception: Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))
at MS.Internal.XcpImports.CheckHResult(UInt32 hr)
at MS.Internal.XcpImports.FrameworkElement_SetStyleValue(FrameworkElement doh, DependencyProperty property, PropertyInvalidationReason reason)
at System.Windows.DependencyObject.ClearValueInternal(DependencyProperty dp)
at System.Windows.DependencyObject.ClearValue(DependencyProperty dp)
at Telerik.Windows.Controls.RadComboBox.Close()
at Telerik.Windows.Controls.RadComboBox.NotifyComboBoxItemMouseUp(RadComboBoxItem comboBoxItem)
at Telerik.Windows.Controls.RadComboBoxItem.OnMouseLeftButtonUp(MouseButtonEventArgs e)
at System.Windows.Controls.Control.OnMouseLeftButtonUp(Control ctrl, EventArgs e)
at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, String eventName)}

[Craig Dean]

OK,

Being getting loads of weird bugs in Telerik controls, turns out that I was changing the ApplicationTheme after some controls rendered, most of the contros die horribly if you change the theme once they're rendered.

Absolutely impossible to trace, very lucky to figure it out!

[Valeri Hristov]

Hello Craig,

How do you change the application theme? I wasn't able to reproduce the problem with a simple application.

Regards,
Valeri Hristov
the Telerik team

Watch a video on how to optimize your support resource searches and check out more tips on the blogs.
Follow the status of features or bugs in PITS and vote for them to affect their priority.

[Sriram]

go through Demos and Change the Application Theme.
http://demos.telerik.com/silverlight/
There is a sample code available in telerik quickstarts