c# - Event wiring with mef -

can me problem? i'm working mef framework, communicate via events "the module" plugin.

i've created shared interface between 2 parts

public class basemodule  {               public event eventhandler<feedbackarguments> sendfeedback;     public event eventhandler<resultarguments> sendresult;       public void invokefeedback(string message) {          if (sendfeedback != null)             sendfeedback(this, new feedbackarguments{feedbackstring = message, feedbackdate = datetime. public void invokeresult(bool passed, string resultmessage, string test) {          if (sendresult != null)             sendresult(this, new resultarguments { resultstring = resultmessage, passed = passed, passedtime = datetime.now, teststring = test});      } } 

this module:

[export(typeof(imodule))]     public class tests : basemodule, imodule     {      public void rememberdescription()         {             invokeresult(true, "please remember upload description","rememberdescription");         } 

and import module this:

[import(typeof(imodule))]  public imodule mef;   public void runtests(string list)     {              aggregatecatalog catalog = new aggregatecatalog();             catalog.catalogs.add(new directorycatalog(folderlocator));              try             {                 compositioncontainer container = new compositioncontainer(catalog);                 container.composeparts(this);                    mef.sendresult += mef_sendresult;                }             catch (exception e)             {                 console.writeline(e.message);              }         }      }      void mef_sendfeedback(object sender, feedbackarguments e)     {      }      void mef_sendresult(object sender, resultarguments e)     {      } 

the event gets triggered in module itself, reason event doesn't fired or listener doesn't work should. appreciated.

the normal events won't work in mef, used event aggregator instead worked me