PropertyGrid: Merging multiple dynamic properties when editing multiple objects

Let's say I have a class A and a class B. I would like to edit using .NET PropertyGrid multiple instances of A and B simultaneously. The desired behavior would be to have the intersection of properties displayed.

If A and B have static (written in the source code) properties everything works fine. Selecting A and B instances will only display the intersection of properties.

However, if A and B also have dynamic properties (returned as a PropertyDescriptorCollection through the GetPr开发者_如何学运维operties() method) the behavior is wrong. When selecting multiple objects I will only see those static properties and none of the dynamic ones.

When I select only one instance I can see all properties (static and dynamic).

Anybody any ideas? I couldn't find anything on the internet.

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Are you using the MergablePropertyAttribute on the properties?