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GraphicCollection CollectionChanged Event not firing on update

Question asked by zalovich89 on May 21, 2018

I have a graphiccollection that I create when the app starts and it stores positions of the elements. I have inherited the CollectionChanged event to a function for processing information when positions are updated. My problem is that event is never fired and therefore function is never called, except at the start when graphics are added, but not when graphics' positions are updated (what I need). Reading arcgis wpf sdk documentation it says that CollectionChanged event is fired when an item is added, removed, changed, moved, or the entire list is refreshed. Why is this not working?

Apart from this, I've tried with PropertyChanged Event and it's also not firing.

 

 

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