I still can't reproduce the issue and looking at your snapshots I am not sure what is the state of the collapse item - is it focused, focused-notselected... This is why I was wondering if you've applied a custom style or a theme on the RadTreeView
I also modified my solution to virtualize the TreeView
, I allowed multiple selection and I added bindings to the IsExpanded
properties. However the control still behaved as expected on our side. Do you think you can try to recreate the issue in my sample? Or perhaps you can try to strip down your project using the “remove and try” approach - basically removing parts of the code until you find the cause for the problem. Also, it would also help us if you can create a screencast to demonstrate the steps that reproduce the issue.
We will really appreciate your cooperation on this as we've never encountered such a behavior before and all further information you can give us, may help in finding the cause.
the Telerik team
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