c# - How to create an Generic Interface with two methods with the same name but different signature? -

i receive error when trying create generic interface have 2 method same name different signature. idea doing wrong , how fix it?

type 'xxx.interfaces.irepository' defines member called 'delete' same parameter types

public interface irepository<t> : irepositoryreadonly<t> {     void add(t entity);     void update(t entity);     void delete(t id);     void delete(t entity);     void save(); } 

your methods don't have different signatures. names of method-parameters not matter, type.

how going specify in calling code method want call?

is id of type t, or should of type int?

public interface irepository<t> : irepositoryreadonly<t> {     void add(t entity);     void update(t entity);     void delete(int id);     void delete(t entity);     void save(); }