For<T>()

Question

Hi

Im using a externa library with a function that I must call  For<T>().

If I have a class:

public class Test
{}

Then I can do For<Test>()

My problem is that I only have objects of class Type like:

Type test2 = ...

I would like to use For<test2>() but its not possible...... how do I do this....???

//lasse

---

Lasse

Answer 1

Hi,

I dont know if I have understood the problem correctly but you must pass the type to a template method. Passing objects is done through parameters.

Shival

Answer 2

Either make the Test class generic:

public class Test<T>
{ }

then inside the class, call the method typed:

For<typeof(T)>()

Another option (which I actually don't recommend) is to always pass the type object like this:

For<object>()

---

Geert van Horrik - CatenaLogic
Visit my blog: http://blog.catenalogic.com

Looking for a way to deploy your updates to all your clients? Try Updater!

Answer 3

I better show the complete code snippet

IEnumerable<Type> ModelImpl = Assembly.GetTypes().Where(t => t.IsClass && t.Namespace.EndsWith("Model"));

foreach (Type impl in ModelImpl)
{
     config.For<????>().Add();
}

I am picking all types from a Assembly matching a specific criteria.

"config" is part of a library Im using so I cant change anything.

My problem is "?????",,,   

---

Lasse

Answer 4

Use reflection.  Call GetMethod on the library class to get the For method, then MakeGenericMethod to bind the type, and Invoke to invoke it.

	class Customer
	{
		public string name;
	}

	class TheLib
	{
		public static void For<T>()
		{
			Console.WriteLine( typeof( T ).ToString() );
		}
	}

	class Program
	{
		static void Main( string[] args )
		{
			Type T = typeof( Customer );
			Test( T );
		}

		static void Test( Type T )
		{
			MethodInfo unboundMethod = typeof( TheLib ).GetMethod( "For" );
			MethodInfo boundMethod = unboundMethod.MakeGenericMethod( T );
			boundMethod.Invoke( null, new object[] { } );
		}
	}