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When to use System.AddIn RRS feed

  • Question

  • We need to create a validation tool in asp.net. As of now tool has three features but later on more would be added. The architecture should be designed in such a way that existing code should not be modified.

    What kind of design pattern do we need to use? I was going through many articles on Adapter Pattern and System.AddIn namespace. Can anyone help and suggest.

    Tuesday, February 15, 2011 12:22 PM

All replies

  • I would take a look at MEF instead

    http://mef.codeplex.com/

     

    There is even a rules engine based on it, http://mefrules.codeplex.com/. I've no idea if it's any good but there are plenty of examples of using MEF to solve this sort of a problem. BTW A number of the examples will be for Silverlight but don't let that you put you off, it is NOT a Silverlight only feature


    http://pauliom.wordpress.com
    Tuesday, February 15, 2011 3:33 PM
  • Maybe I've misunderstood.

    When you say validation tool.

    You mean custom validation controls?

    Don't you only need to change code which would use a custom validator?  But you'd need to change whichever code used them - so I don't really get the advantage of making them a plug in.

    Wednesday, February 16, 2011 8:48 AM