Question

I dynamically load an assembly as:

 var assembly = Assembly.LoadFile("PathOFMyDll");

anyways that assembly has the static method Filter inside the class DynamicClass. So once I have that assembly I exececute that method as:

 var filter = assembly.GetType("DyamicClass").GetMethod("Filter");

 // that method accepts a object as parameter
 filter.Invoke(null, new object[] { "test" });

---

Now my question is:

I have the delegate delegate bool FilterDelegate(object item); why it is not possible make a delegate of that type point to that method in order to have:

 FilterDelegate myPointerToMethodFilter = (FilterDelegate)assembly.GetType("DyamicClass").GetMethod("Filter");
 bool result = myPointerToMethodFilter("test");

note the compiler only complains when trying to compile. I do not get any syntax errors.

Answer 1

It is possible to create a delegate from a MethodInfo object, but casting is not sufficient.

Instead, use Delegate.CreateDelegate():

MethodInfo myMethodFilter = assembly.GetType("DyamicClass").GetMethod("Filter");
FilterDelegate myPointerToMethodFilter = (FilterDelegate)Delegate.CreateDelegate(typeof (FilterDelegate), myMethodFilter);