Test whether an object implements a generic interface for any generic type

Question

I want to test an object to see if it implements IDictionary but I don\'t care what TKey and TValue are.

I

Answer 1

How about something like

return type.GetInterfaces()
           .Where(t => t.IsGenericType)
           .Select(t => t.GetGenericTypeDefinition())
           .Any(t => t.Equals(typeof(IDictionary<,>)));

which I'm sure that you can easily generalize for any generic type definition.