How do I get the typeparam names from a generic type definition?

Question

Suppose I have a generic type definition as such:

var type = typeof(IReadOnlyDictionary<,>)

How would I get the typeparam name of the generic arguments? In the example above, I'm looking for "TKey" and "TValue"

for typeof(IList<>) I am expecting "T"

Is there any way, using reflection, to get these strings?

Answer 1

You can use Type.GetGenericParameterConstraints for this:

var type = typeof(IReadOnlyDictionary<,>)
var names = type.GetGenericArguments().Select(x => x.Name);

See my fiddle.