Comments on: The point of a multi layer architecture http://blog.dmbcllc.com/2008/01/31/the-point-of-a-multi-layer-architecture/ ASP.NET, HTML, CSS, Visual Studio, CSharp, VB.NET and other programming items of interest. Tue, 06 Jan 2009 12:53:44 +0000 http://wordpress.org/?v=2.6.5 By: Multi-layer LINQ via Extension Points http://blog.dmbcllc.com/2008/01/31/the-point-of-a-multi-layer-architecture/#comment-307 Multi-layer LINQ via Extension Points Wed, 06 Feb 2008 22:57:21 +0000 http://blog.dmbcllc.com/2008/01/31/the-point-of-a-multi-layer-architecture/#comment-307 [...] promised a few days ago, I will be covering multi-layered architecture as it relates to [...] [...] promised a few days ago, I will be covering multi-layered architecture as it relates to [...]

]]> By: Mihail http://blog.dmbcllc.com/2008/01/31/the-point-of-a-multi-layer-architecture/#comment-302 Mihail Mon, 04 Feb 2008 18:15:31 +0000 http://blog.dmbcllc.com/2008/01/31/the-point-of-a-multi-layer-architecture/#comment-302 I agree. Please keep this going; hopefully I will be able to ask the "right questions". Thanks. I agree. Please keep this going; hopefully I will be able to ask the “right questions”. Thanks.

]]> By: Dave http://blog.dmbcllc.com/2008/01/31/the-point-of-a-multi-layer-architecture/#comment-297 Dave Fri, 01 Feb 2008 18:49:46 +0000 http://blog.dmbcllc.com/2008/01/31/the-point-of-a-multi-layer-architecture/#comment-297 Yes, but keep in mind: 1) That method does not work with all databases, if you were to do it at the database level. 2) You could implement that method with DataSets or now that we have LINQ, the Linq to SQL classes. But, the discussion was meant to be technology agnostic. 3) Validation at this level is a last ditch effort validation. The data should be validated at all three levels. You don't want to pass any data down that you don't believe will end up in the database. Yes, but keep in mind:

1) That method does not work with all databases, if you were to do it at the database level.
2) You could implement that method with DataSets or now that we have LINQ, the Linq to SQL classes. But, the discussion was meant to be technology agnostic.
3) Validation at this level is a last ditch effort validation. The data should be validated at all three levels. You don’t want to pass any data down that you don’t believe will end up in the database.

]]> By: Mihail http://blog.dmbcllc.com/2008/01/31/the-point-of-a-multi-layer-architecture/#comment-296 Mihail Fri, 01 Feb 2008 18:28:37 +0000 http://blog.dmbcllc.com/2008/01/31/the-point-of-a-multi-layer-architecture/#comment-296 Would you use constraints as a method of validation in your DAL? Would you use constraints as a method of validation in your DAL?

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