c# - Class instantiated from DLL does not seem to be implementing interface properly -


i have class attempting instantiate through use of assembly , activator, class implements interface, when run instance of class through conditional checks class implements it, getting false. problem?

my code checking implementation:

     string classname = myclass;      type type = null;      assembly assembly = assembly.loadfile("@c:\\mydll", new evidence(appdomain.currentdomain.evidence));      type = assembly.gettype(classname);      object instance = activator.createinstance(type);       //never makes past conditional      if (!(instance myinterface)      {      //it endsup in here, when shouldn't.      system.writeline("error");      }      else{      //this needs happen      }

code class myclass outside scope of of this, , in mydll

public class myclass: myinterface { //contents irrelevent problem }

i @ loss why not passing conditional. instantiation class wrong? note huge rookie when comes using assembly/activator , using interfaces.

most reason - both dll , code have own version of myinterface. happen either because

  • one did not want spend time come unique name interface,
  • someone decided share interface source instead of via assembly reference,
  • good named interfaces in different namespaces , using wrong one.

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