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• Re: Logical Classification of Business Entities

  In my opinion, what you call as "need based entities" are nothing but DTOs. While the business entities model the domain using proper associations and relationships, DTOs are designed to interact with other layers like UI, DAL, service client etc.. based on the needs. DTOs may be overkill if they resemble similar to business entities...

  Posted to Architecture (Forum) by saravanan.balasubramanian on 7/2/2009
  Filed under: dfg

• Re: object factorybank like Spring in java does that exist in .NET

  Unity IoC from Microsoft... http://www.codeplex.com/unity

  Posted to Architecture (Forum) by saravanan.balasubramanian on 6/19/2009

• Re: Notifications in asp.net

  There are two parts a. back end database processing - sql scheduler / windows service that does background processing and update the database.. b. notification in asp.net pages - build user controls that leverage ajax/xmlhttp object to interact with the DB and alert the user. can try ajax popupextender for UI purpose.

  Posted to Architecture (Forum) by saravanan.balasubramanian on 6/19/2009

• Re: N-Layer ASP.Net Application

  When you mean a entity, I understand it's going to be POCO classes - just properties, fields and no methods/business logic. The assumption is that your BLL will contain only methods to handle/manipulate the entities and no state. If so, I will go ahead creating a new project for Entities which will be used by all other layers - they just act as data containers. If your BLL has state + behaviour, then DTO implementation is suggested. Saravanan

  Posted to Architecture (Forum) by saravanan.balasubramanian on 6/19/2009

• Re: Access Username within a trigger

  It depends on how you have configured your ASP.Net to access the SQL Server. If you have enabled impersonation ASP.net will access SQL server with the logged in user account but this makes maintaining permissions at SQL server more complex and not the recommended approach for internet apps. So in general the web app will be configured to use a pre-defined account which has permission in SQL. This uses a single account to connect to SQL but the downside is you don't know which user is accessing

  Posted to Architecture (Forum) by saravanan.balasubramanian on 5/11/2009

• Re: Looking for solution or patern

  As "toas1" suggested, definitely you need to seperate your UI from this problem. In fact this has more to work with business and underlying data and not the UI. If I understood your problem the issue is, how to load product object from one or more data source with a different logic? By using a common interface and a factory method you can achieve this. At a high level you will be having two classes implementing the same interface to return the product object. One with some data conversion

  Posted to Architecture (Forum) by saravanan.balasubramanian on 5/8/2009

• Re: Architecture/Pattern for configurable web application

  For plug-in feature at business layer, you may have refactor your code to reduce the dependency and coupling. Read about Inversion of Control principle in OOD. Instead of depending on concretion if you could make your code to depend on abstraction, plugging in shouldn't be a big deal. You can use any IoC container to inject the dependency at runtime from configuration file itself. Have a look at Microsoft Unity Application Block. And regarding UI, instead of generating the aspx file everytime

  Posted to Architecture (Forum) by saravanan.balasubramanian on 5/8/2009

• Re: Generating Despatch Notes

  You may either poll the folder using Timer or better use the FileSystemWatcher object and subscribe to its events. I believe printing shouldn't be a big deal as Crystal Report provides the API. You can make the entire operations to run background by using a windows service. Thanks, Saravanan

  Posted to Architecture (Forum) by saravanan.balasubramanian on 4/30/2009

• Re: Best solution to schedule SOAP

  It's bit different than developing a console application.. in particular the deployment is a different process. This one should give a better idea... http://msdn.microsoft.com/en-us/library/aa984074(VS.71).aspx

  Posted to Architecture (Forum) by saravanan.balasubramanian on 4/29/2009

• Re: Design and programming

  It differs from team to team and is subjective.. C# programmer may not be a creative UI designer... Fortunately if you have a dedicated web designer for your project, the designer can design html pages (all pages or some pages depending on his allocation to the project..) which the programmer can convert to .aspx file (using asp.net server controls) and write code for that..

  Posted to Architecture (Forum) by saravanan.balasubramanian on 4/29/2009