Hello,I have three collections, A, B, and C. B is a collectioncontained
within A, and C is a collection contained in B. When I add a new item to
collection C, the item istemporarily added to the collection correctly
and then thecollection is quickly replaced with the last item added. I
havecome to this conclusion after watching all items(mutiple items)
ofcollection C being displayed in a DataGrid correctly only to havethem
replaced within a second with the last added item only.I have modeled
the...