Get General Type of class<T> use Type of Type

Question

I have a General Class named MyGeneralClass:

public MyGeneralClass<T> {

public List<T> Data {get; set;}

}

also I have another method that I need to use it:

public void GetData(Type type) {



}

I Use GetDatalike this:

GetData(typeof(MyGeneralClass<person>));

So my question is that how can I find type of T, (in this example person) in GetData method, I can't change the parameters of GetData but I can change implementation of that. Does any one have any idea about this?

Answer 1

Via reflection:

if(type.IsGenericType &&
     type.GetGenericTypeDefinition() == typeof(MyGeneralClass<>))
{
   Type firstArg = type.GetGenericArguments()[0];
}

Answer 2

You can use the GetGenericArguments method:

Type t = type.GetGenericArguments()[0];