Union two ObservableCollection Lists

Question

I have two ObservableCollection lists, that i want to unite. My naive approach was to use the Union - Method:

ObservableCollection unitedPoints = ob         


        

Answer 1

Do you want to merge the existing contents, but then basically have independent lists? If so, that's relatively easy:

ObservableCollection unitedPoints = new ObservableCollection
    (observableCollection1.Union(observableCollection2).ToList());

However, if you want one observable collection which is effectively a "view" on others, I'm not sure the best way to do that...