C#

andy180 wrote:

When the custom class is a property itself in another class, a propertygrid will display and edit a string property in the custom class instead of the custom class.

// Assembly A - references B
class GUI : IGUI
{
   void DoGUI()
   {
   }

   void DoSomething(IController controller)
   {
     controller.DoFunc();
   }
}

//Assembly B
interface IController
{
   void DoFunc();
}

interface IGUI
{
  void DoGUI();
}

//Assembly C - references B
class Controller : IController
{
   void DoFunc(){}
   void DoSomething(IGUI gui)
   {
      gui.DoGUI();
   }
}

//Assembly D - references A, B, C
class Factory
{
   IController CreateController(){}
   IGUI CreateGUI(){}
}

using System.IO;