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Wednesday, August 01, 2007

LINQ: Building an IQueryable Provider - Part III

by mattwar via The Wayward WebLog on 8/1/2007 9:11:00 PM

Part III? Wasn’t I done in the last post? Didn’t I have the provider actually working, translating, executing and returning a sequence of objects? Sure, that’s true, but only just so. The provider I built was really fragile. It only understood one major query operator and a few minor ones like comparison, etc. However, real providers are going to have to deal with many more operators and complicated interactions between them. For example, that provider did not even let you project the data i ...

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Nothing is Trivial!

by Rick Strahl via Rick Strahl's Web Log on 8/1/2007 8:13:43 PM

I got a call from a customer last week who needed a small piece of work done that he defined as 'Trivial'. Ok, trivial can be good - quickie in and out and you're done, but usually when I hear the word trivial I always cringe because it rarely is. Not Trivial:It's an issue of perception of course and it depends on who you talk to. If you talk to a non-developer almost any sort of development seems trivial. I mean everybody does it right? We have Web pages everywhere - so it's gotta be ...

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Ping using XML-RPC in ASP.NET

by Mads Kristensen via .NET Slave on 8/1/2007 4:17:00 PM

Many blogs have the ability to ping different ping-services, such as Ping-o-Matic, Feedburner and Technorati, whenever some content is created or updated. But it is not only blogs who can benefit from pinging these services. Almost all websites that is updated regularly can use this technique. All these services use XML-RPC and the exact same format, so you can write a ping class ones and then just add whatever ping service URL later. I’ve written a very simple static ping class that c ...

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Mapping SQL Server Errors to .NET Exceptions (the fun way!)

by tomholl via Tom Hollander's blog on 8/1/2007 10:56:00 AM

As I mentioned in my last post, I've been having some fun discovering what it's like to use patterns & practices deliverables on a real enterprise application. One of the challenges I've faced was figuring out an exception management strategy that included the ability to convert cryptic database error codes to .NET exceptions that are more meaningful for the business layer. My first instinct was to write code something like this:try{ Database db = DatabaseFactory.CreateDatabase("MyDatabas ...

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