In my application the ItemsSource for the listbox will change depeding on other entity values. I am using CollectionViewSource with changing filter to implement this.

However, the SelectedItem binding is lost in this case. WPF standard ListBox on the other hand behaves correctly. You can download demo application here: http://jemerald.com/myfiles/ListBoxWithFilterSource.rar

Hi Wenrong,

We were able to reproduce the issue, but we need more time to investigate it. We will get back to you as soon as we have more news on the matter.

Greetings,
Georgi
the Telerik team