c# - Can I retrieve the interface type within an interface method? -

how can determine underlying interface method dosomething() called? additional question: can determine underlying interface in myclass constructor? assume not not known @ instantiation time, correct?

edit: not looking explicit interface implementations different way determine underlying interface.

public interface itest {     void dosomething();     //....more methods }  public interface idecoy {     void dosomething();     //...more methods }  public class myclass : itest, idecoy {     public void dosomething()     {         //question: how can determine underlying interface called method?         //at 1 time itest, @ idecoy. how can figure out 1 @ each time?     } }  public class test {     public test()     {         itest myclassinstance1 = new myclass();         idecoy myclassinstance2 = new myclass();          myclassinstance1.dosomething();         myclassinstance2.dosomething();     } } 

public class myclass : itest, idecoy {     void itest.dosomething()     {         //called itest      }     void idecoy.dosomething()     {         //called idecoy      } }