When I close this, I receive this error:

After some investigation, I discovered that is a problem with how I'm disposing of a control I subclassed, but I don't know why.

I have a subclassed TreeView control that calls Dispose on a class that implements IDisposable.  The TreeView calls the Dispose of the internal object, that object does it's dispose business, returns to the TreeView, which when it hits end sub, immediately jumps back into the Dispose method of the internal object. My subclassed TreeView is called DataTreeView. It has a data provider, called MyDataProvider, which implements IDisposable. Here is an example of what I'm seeing:

System.ComponentModel.Component.Finalize()
--calls-->DataTreeView.Dispose(False)
--calls--> MyDataProvider.Dispose()
--calls--> MyDataProvider.Dispose(True) 
--back out to--> MyDataProvider.Dispose()
--back out to--> DataTreeView.Dispose(False)
--??--> MyDataProvider.Dispose(True)

To make things weirder, that last step doesn't halt on the first line of code, but on a line with a break point, although I hit F11. 

Now, while debugging this, trying to compose this message, it stopped causing errors, even though it still goes through the above cycle 6-8 times.

Any ideas what's going on? I'm throughly confused 

Thanks!