Question

Is there some collection that is supported in Silverlight, WPF and Windows Phone, that will satisfy following criteria:

1. accepts IEnumerable<T> as source
2. allows filtering and sorting items
3. allows adding, editing and deleting items in filtered list
4. any changes to filtered/sorted list are reflected to source list also (I am considering filtered/sorted list only as a view to source collection)
5. any changes to filtered/sorted list will be reflected on UI control (Gridview, ListView…).

Answer 1

You want an ObservableCollection. There’s really nothing else.

A variation is your own object that implements IList, but internally does whatever you want. For that, you’d make a class that looks like this

class MyClass: IList, INotifyPropertyChanged
{
  //implement it
}

EDIT:
There is also the CollectionViewSource object