Interfaces

Question

Hi What is the main advantage of INTERFACES and when to use the INTERFACES in my project. please suggest. thanks inadvance Regards Balu Reddy K

Senthilkumar · Answer

Hi BaluReddy Take advantage of interfaces to make your code cleaner and more reusable. A simple example of where interfaces can be applied is in populating UI controls. How many ListBox controls do you have to populate in your web application? One solution is to write the code to populate each ListBox individually in the Page_Load method. Another method could be to create a helper method that takes an array of data items and a ListBox as parameters populating the ListBox from the array of data Advantages of Interface: http://msdn.microsoft.com/en-us/library/3b5b8ezk(v=vs.80).aspx w hen to use: http://msdn.microsoft.com/en-us/library/3b5b8ezk(v=vs.80).aspx

Vulpes · Answer

The purpose of interfaces is to enable classes or structs which are otherwise unrelated to one another to share functionality. Each class/struct can implement the interface's members in a way which suits it but it must provide a public implementation of all of them. It's possible to create variables and parameters of interface types to which you can assign references to objects which implement the interface in question. This enables you to write generic code in relation to all types which implement an interface. It's also possible for types to implement multiple interfaces which can compensate to some extent for .NET's lack of support for multiple inheritance.