Get generic instance generic type using reflection

Question

Given:

Type T = typeof(List<string>);

Requirement:

typeof(List<>) == SomeFunction(T)

Many times when I'm reflecting over a type and want to find all properties that return lists of some type...I need the "SomeFunction" shown above. I've searched and searched, but cannot figure out how to get List<> from List<string>. I can use T.GetGenericArguments(), but that only returns string so that doesn't help at all.

leppie · Accepted Answer · 2011-06-15 14:31:47Z

8

typeof(List<string>).GetGenericTypeDefinition() == typeof(List<>)

answered Jun 15, 2011 at 14:31

leppie

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2 Comments

Timothy Baldridge Over a year ago

You know, I tried that before, and I saw List`1 and thought that GetGenericTypeDefinition() was returning List<string>. My bad, your solution works great!

leppie Over a year ago

List`1 is the same as List<>. Likewise, Func`2 is Func<T,R>.

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