Interface?

[joe_pool_is]

I was adding a new form to an existing project in VS2005 the other day, and I took some time to look at all of the different types of objects I could include.

 

One item in the list was an "Interface". I tried looking in the help under selecting items, but there was no information on what an "Interface" was.

 

Could someone tell me what an Interface is?

[PlausiblyDamp]

http://msdn.microsoft.com/en-us/library/ms173156.aspx is probably worth a read as it goes into some detail.

 

In a nutshell however an interface is a way of achieving polymorphism as it defines a standard set of methods that classes can implement, other code however can just target the interface and not care about the exact type of object it is dealing with.

[joe_pool_is]

Thanks for the link and the summary!

[Nate Bross]

A simple way to think about it is that an Interface is like a contract. Any class that implements or extends an Interface is guarenteed to implement all members of the Interface, it may have more, but it will have everything defined in the Interface.