hook .NET methods Property error

[besoeso]

Hi, While i doing any test with .NET got a "Error type: System.ArgumentNullException"

The test case is the follow:

public class TestClass
{
public String Name;

public Object Value
{
get
{
return "the value";
}
set
{
Name=value;
}
}
}

ClassDetours
{
public String Name_detour;

    public Object Value_detour
    {
        get
        {
            return "answer_detour";
        }

        set
        {
          Name_detour=value;
        }
    }

}
}

o = cHook.Hook(typeof(TestClass), "Value", new Type[] {} ,
typeof(ClassDetours), "Value_detour",new Type[] {});

Regards.