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Bug Report T320411
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ASPxTreeListEditor - NullReferenceException after changing the Delete action's SelectionDependencyType in Controller.OnDeactivated

created 9 years ago

Hi guys,
I found a bug I presume. We need to set SelectionDependencyType to RequireSingleObject on one ObjectType in TreeList but When I use ViewController to change this behavior something went wrong and NullReferenceException is raised.

I attached a sample where you can try this. This bug is related to web only.
Use case:

  1. Run Web application
  2. after run you can see DomainObject1%ListView
  3. click on navigation menu to DOmainbject2 - now you will see NullReferenceException raised

I think problem is that theListViewContextMenuManager is Disposed and than called but property editor is set to null thanks to disposed object.

As override we will set SelectionDependency for Delete action in whole application till now but Hope this will be fixed in next realese.

But when you found how to obtain this problem please give me a hint thank you much.

Comments (1)
Anatol (DevExpress) 9 years ago

    I have reproduced the issue on my side. I am forwarding your ticket to our developers for further research. We will let you know as soon as we find any solution.

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    Answers approved by DevExpress Support

    created 9 years ago

    We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.

    Note: Hotfixes may be unavailable for beta versions and updates that are about to be released.

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