topic GraphicCollection CollectionChanged Event not firing on update in ArcGIS Runtime SDK for WPF (Retired) Questions https://community.esri.com/t5/arcgis-runtime-sdk-for-wpf-retired-questions/graphiccollection-collectionchanged-event-not/m-p/581616#M2951 <HTML><HEAD></HEAD><BODY><P>I have a graphiccollection that I&nbsp;create&nbsp;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&nbsp;when an item is&nbsp;<SPAN style="color: #2a2a2a;">added, removed, changed, moved, or the entire list is refreshed. Why is this not working?</SPAN></P><P><SPAN style="color: #2a2a2a;">Apart from this, I've tried with PropertyChanged Event and it's also not firing.</SPAN></P><P></P><P></P></BODY></HTML> Mon, 21 May 2018 12:36:54 GMT GonzaloMuöoz 2018-05-21T12:36:54Z GraphicCollection CollectionChanged Event not firing on update https://community.esri.com/t5/arcgis-runtime-sdk-for-wpf-retired-questions/graphiccollection-collectionchanged-event-not/m-p/581616#M2951 <HTML><HEAD></HEAD><BODY><P>I have a graphiccollection that I&nbsp;create&nbsp;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&nbsp;when an item is&nbsp;<SPAN style="color: #2a2a2a;">added, removed, changed, moved, or the entire list is refreshed. Why is this not working?</SPAN></P><P><SPAN style="color: #2a2a2a;">Apart from this, I've tried with PropertyChanged Event and it's also not firing.</SPAN></P><P></P><P></P></BODY></HTML> Mon, 21 May 2018 12:36:54 GMT https://community.esri.com/t5/arcgis-runtime-sdk-for-wpf-retired-questions/graphiccollection-collectionchanged-event-not/m-p/581616#M2951 GonzaloMuöoz 2018-05-21T12:36:54Z