Reuse The Model Classes Of Entity Data Model (.edmx) To Multiple Projects Using Class Library In ASP.NET Web API - Part Three

A class library is useful when you want to share code between multiple programs. Class Library is a collection of reusable types including classes, interfaces and data types included in the .NET Framework to provide access to system functionality. It can be used for developing applications such as console applications, Windows GUI applications, ASP.NET applications, Windows and Web services, workflow-enabled applications, service-oriented applications using Windows Communication, XML Web services, etc.

• The class is like a TV in a room and only room members can watch it.
• Class lib is like a theater in a common place (city, mall) and anyone can watch it.

We can create the class files in all .NET applications (C#.Net,Asp.net,Asp.net MVC). In .NET, we call it DLL (Dynamic Link Library). If you are creating the classes in your application, you can use this class only inside this application, you cannot use it in other applications.If you create the class library you can use it in all the applications.

• ASP.NET Web API Using MVC And Entity Framework - Part One
• ASP.NET Web API Using MVC, Entity Framework And jQuery For Retrieve Data - Part Two