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RadListBox GroupDescriptions Exception

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Dmitry
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Dmitry asked on 28 Aug 2014, 01:06 AM
Hello.
I have an application view that allows user to switch between several pages.
In one view there are a ListBox and a ComboBox which used for a grouping selection.
Items for a ListBox are being added using Timer every several seconds no matter which view is selected by user.
So, when user selects view with grouping ComboBox, chooses grouping value and then switches back to another view and then again switches to the view with grouping the program raises NullReferenceException (if you try to select anyting in ListBox or try to change grouping value).
I gave a link to the sample project that demonstrates the problem.
https://www.dropbox.com/s/3flf3woe5ba76d1/WpfApplication1.zip?dl=0

Is there any workaround?

P.S. If I use standard Visual Studio ListBox no exception is thrown. It gives an error only when RadListBox is used.

Thank you for the help.

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Polya
Telerik team
answered on 01 Sep 2014, 02:43 PM
Hello Dmitry,

Thank you for the thorough explanations and sample project. We were able to reproduce the issue and log it in our Feedback portal where you can track its progress.
We are working on resolving it so you can expect the fix in some of our next internal builds.

Also, I've updated your Telerik Points as a small token of appreciation for your efforts.

Regards,
Polya
Telerik
 
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Dmitry
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Polya
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