Question

I have a class

public class A<T>
{
   public static string B(T obj)
   {
       return TransformThisObjectToAString(obj);
   }
}

The use of string above is purely exemplary. I can call the static function like this just fine on a known/specified type:

string s= A<KnownType>.B(objectOfKnownType);

How do I make this call, if I don’t know T beforehand, rather I have a variable of type Type that holds the type. If I do this:

Type t= typeof(string);
string s= A<t>.B(someStringObject);

I get this compiler error:

Cannot implicitly convert type 't' to 'object'

Answer 1

You can’t. Generic type identifiers have to be known at compile time.

edit

as of other posts, it appears to be possible by dynamicly generating the method and invoking it – which has dangers of course. See Thomas’ and Dathan’s posts for more inforation.