Particularly, for me (in DevExpress controls) ContainsListCollection() only meant that GetList() returns an ITypedList.

Now, what do you mean saying “control with more than one list inside”, a grid-like control where each line item is another IList, or just two collections, or what?
If so, you’ll need a specific Binding for each line anyway.
And you’ll need to return such a PropertyDescriptor that describes how to bind your ITypedList‘s elements.

I have got a question about this issue.

I have implemented a datasource control that usually returns false on ContainsListCollection() calls. Everything works fine here.

But i want to make a datasource control with more than one list inside, so i changed my implementation, and i return true on ContainsListCollection() calls. So I tried to implement my getList() method to returning a BindingList of my original datasource items, but it seems it doesn’t work.

Can you help me to show the way to do it?

Regards