How can I manually recreate a Contextmenu for a Child of a ListView on Resume?

Question

Hi,

I have a ListView with a ContextMenu. If the ContextMenu is open and the Orientation changes, I want to reopen the Contextmenu for the Child of the ListView, that was clicked on. I tried to do this in "OnResume", but at this point, the ListView seems to have no Children. Anybody knows an answer? Thanks in advance.