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01be028a67 For example: validation functionality, security libraries, encryption tools or exception logging classes can be added to this layer. Performance is actually better if you don't have the overhead of layers talking to each other. The Presentation Layer is an ASP.NET website running on top of these projects. IMO, C# is the best programming language and I love working with C# and other Microsoft Technologies. Categories: Uncategorized . (For simplicity, I have removed all other tables from the DB and some columns from the Employee table). The benefit of having this layer as a separate solution is that in case the database engine is changes we only need to change the DAL and the other areas of the website need not be changed and recompiled. Carrington Theme by Crowd Favorite .. This is an optional layer and it is mandatory not to have any dependencies on the above described layers because this layer can be compiled and shared across multiple projects.
How to add class library to solution:After clicking on a new project you would see the following screen. I just wanted to ask one thing. Re: Hi Vuyiswamb2-Nov-07 0:51 Vuyiswamb2-Nov-07 0:51 . only data access. BLL contains all the calculations and Business Rule validations that are required in the application. Make sure that every component or module is responsible only for a specific feature or functionality. Now the Reason that i used throw ex it is because if you use only throw statement you will loose the real exception on the way while throwing between layers, so to preserve it pass the object. 1. However, this layer is not a mandatory one.