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Making VB.NET OOP via Observer paradigm and easily adaptable to Test Driven Development

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  7 months ago

  by matt_1ca

  Matt M

  Calgary, Canada

  Joined 7 months ago
  Wondering if someone could show me how to implement an observer pattern in VB.NET? Currently I have a lot of working code in VB6 which the company wants me to migrate to VB.NET. Well, that would normally be straightforward ... yes? Unfortunately, not so in our case.... recently, our company decided that I need to modify it to implement the MVC (Model View Controller) paradigm to make it truly OOP and adaptable to TDD (Test Driven Development). Currently, my move was to start with a simple one, opening a form and then grabbing a piece of text from a textfile and putting it as the caption of the form... now, that is easy. The problem lies in trying to implement observer patterns ... in the observer pattern I cannot simply call the usual me.caption = mytextstream.ReadLine from the form_load event instead, I need to use objects that would use an interface to register themselves as observers as the form loads but not necessary having to be residing in the form_load event... in fact ... if there is somehow a way for me to make such a thing happen before the code goes through the form_load event then that would more completely separate the View layer from the controller layer which gets implemented through the use of observers and observer related patterns. I did a search for MVC but got nothing returned but Im hoping that someone viewing this new thread might have come across it and please give me a clue how it can be done in VB.NET ... thank you so much for all the kind help you could give ... all suggestions welcome Gratefully, Matt
  Post was edited on 25/04/2009 19:21:30 Report abuse