ObservableCollection not noticing when Item in it changes (even with INotifyPropertyChanged)

Question

Does anyone know why this code doesn\'t work:

public class CollectionViewModel : ViewModelBase {  
    public ObservableCollection Con         


        

Answer 1

Simple solution for standard observablecollection that I've used:

DO NOT ADD to your property OR CHANGE it's inner items DIRECTLY, instead, create some temp collection like this

ObservableCollection tmpList= new ObservableCollection();

and add items or make changes to tmpList,

tmpList.Add(new EntityViewModel(){IsRowChecked=false}); //Example
tmpList[0].IsRowChecked= true; //Example
...

then pass it to your actual property by assignment.

ContentList=tmpList;

this will change whole property which causes notice the INotifyPropertyChanged as you need.