What is implicit and explicit implementation of interfaces? In which scenario it uses? why its need ? in dot net
- possible duplicate of stackoverflow.com/questions/143405/…derek– derek2010-08-30 11:44:16 +00:00Commented Aug 30, 2010 at 11:44
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Implicit implementation is when you implement the interface member without specifying the interface name at the same time.
public interface IFoo { void Bar(); } public class ClassA : IFoo { //this is implicit public void Bar() { } } public class ClassB : IFoo { //this is explicit: void IFoo.Bar() { } } You need explicit implementation when you implement two (or more) interfaces that have a function/property with the same name and signature. In this case the compiler needs to be specifically told which implementation belongs to which interface.
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in the explicit implementation, you use both the name of the interface and the name of the method you're implementing . It allows you to use several methods with the same name in your class (for instance if the class implements several interfaces)
public interface I { void A(); } public class myClass: I { public void I.A() { // do some stuff } } read this aricle, it explains quite clearly why you could need explicit implementation: http://blogs.msdn.com/b/mhop/archive/2006/12/12/implicit-and-explicit-interface-implementations.aspx
