I want to have a custom collections editor dialog box in WPF (for editing a collection property in a user control at design time), preferably by expanding outgoing, but I cannot find the existing one anywhere ...
I am looking for advanced customization (and not just adding elements to the combo-box of the collection editor), for example, implementing a winforms-like editor for treeview in wpf Can someone point me in the right direction?
Is there any other way that I can achieve such a goal (implementation of winforms development time editor)
Here are 2 editors
Wpf Editor: 
And Win Form Editor

You will notice that in the dose of the wpf editor the hierarchy of elements is not displayed, this is the function that most of me are interested in, I would like to see the hierarchy when I edit the tree.
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