Question

I know I can create a List<T> from IEnumerable<T> by doing
myEnumerableCollection.ToList(), but how could I implement the same thing for an ObservableCollection<T> ?

Answer 1

What you’re looking for is extension methods.

You can extend the IEnumerable<T> type like this:

namespace myNameSpace
{
    public static class LinqExtensions
    {
       public static ObservableCollection<T> ToObservableCollection<T>(this IEnumerable<T> _LinqResult)
       {
          return new ObservableCollection<T>(_LinqResult);              
       }
    }
}

Don’t forget to add the using directive in classes you want to use this in (i.e: using myNameSpace;)