Building an N-Layer ASP.NET Application with LINQ, Lambdas and Stored Procedures (Updated)

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LINQ N~layer！

barney — Fri, 13 Jun 2008 03:16:15 GMT

BuildinganN-LayerASP.NETApplicationwithLINQ,LambdasandStoredProcedures(Updated)

Buildin...

re: Building an N-Layer ASP.NET Application with LINQ, Lambdas and Stored Procedures (Updated)

dwahlin — Tue, 25 Mar 2008 18:03:46 GMT

I posted an example of using typed DataSets in an N-layer situation at the following URL awhile back if you're interested:

weblogs.asp.net/.../442115.aspx

re: Building an N-Layer ASP.NET Application with LINQ, Lambdas and Stored Procedures (Updated)

nflsprstar — Tue, 25 Mar 2008 17:36:31 GMT

Anyone using n-layer architecture w/ typed datasets & custom business objects? Could you provide examples or point me to resources that correctly utilize this architecture?

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re: Building an N-Layer ASP.NET Application with LINQ, Lambdas and Stored Procedures (Updated)

dwahlin — Sun, 16 Mar 2008 05:31:25 GMT

KC,

I haven't tried WWD 2008 Express unfortunately (haven't tried the 2005 version in years either) so I'm not sure what it's capable of handling as far as projects go. If you find that it can't load the multiple projects you could copy the .cs files into the App_Code folder of the Website and that shouldn't give it a problem since I know it's definitely capable of working with that type of setup.

I did a quick Google search on the error message and found the following as well which makes it sound like you may just need to copy the various project .cs files into the Website's App_Code folder:

http://www.cuyahoga-project.org/13/view.aspx?g=posts&t=912

re: Building an N-Layer ASP.NET Application with LINQ, Lambdas and Stored Procedures (Updated)

KC — Sat, 15 Mar 2008 14:04:36 GMT

Hi Dan,

When I open the solution in VWD 2008 express, projects Biz, Data, and Model fail to get loaded. I get the following error message:

"The project system components are not installed on this computer. Please re-install Visual Studio."

Any reason why I am getting this message!

re: Building an N-Layer ASP.NET Application with LINQ, Lambdas and Stored Procedures (Updated)

dwahlin — Fri, 07 Mar 2008 05:44:02 GMT

Marty,

Good question...I think having a method that returns the custom objects (but leaves the query dynamic) would be good because related methods could call the base method and then add additional filters, sorts, etc. But, having a View is a nice idea in that case since the view could handle filtering out the unwanted fields. I personally lean toward doing as much in the database as possible (where appropriate of course) which is why I also added sprocs into the sample app. It's really your call though.