How to filter to all variants of a generic type using OfType<>

Question

I want to filter objects in a List using their type, using OfType<>. My problem is, that some objects are of a generic interf

Answer 1

from s in series
where s.GetType().GetGenericTypeDefinition()==typeof(ITraceSeries<>)
select s;

Answer 2

You can use reflection to achieve it:

var filteredList = myList.Where(
    x => x.GetType()
          .GetInterfaces()
          .Any(i => i.IsGenericType && (i.GetGenericTypeDefinition() == typeof(ITraceSeries<>))));