This is a set of extension methods on top of IList, IEnumerable and ICollection types.

• ToGroupedObservable - takes a GroupBy result and turns it into a GroupedObservableCollection<TKey,TValue>.
• ToObservableCollection - takes an IEnumerable set and returns an ObservableCollection<T>.
• BubbleSort - sorts an IList<T> using the Bubble Sort algorithm. Two variations are supplied - one takes an IComparer and the other takes a Func<T,T,int> to do the comparison.
• Compare - compares two collections and returns whether they have the same set included with (optionally) the same ordering.
• AddRange - adds a range of IEnumerable items to a ICollection.
• RemoveRange - removes a range of IEnumerable items to a ICollection.
• IndexOf - returns the index position of a given item in an IEnumerable using a Predicate<T> as the test.
• Swap - swaps two values in an IList<T> based on index.
• MoveRange - moves a section of a IList<T> from one position in the list to another, supports overlapping regions.