Question

If I had generic class:

public class GenericTest<T> : IGenericTest {...} 

and I had an instance of Type, which I got through reflection, how could I instantiate GenericType with that Type? For example:

public IGenericTest CreateGenericTestFromType(Type tClass) {    return (IGenericTest)(new GenericTest<tClass>()); } 

Of course, the above method won’t compile, but it illustrates what I’m trying to do.

Answer 1

You need to use Type.MakeGenericType:

public IGenericTest CreateGenericTestFromType(Type tClass) {    Type type = typeof(GenericTest<>).MakeGenericType(new Type[] { tClass });    return (IGenericTest) Activator.CreateInstance(type); }