BenkoBLOG : Framework Master Class

LINQ to XML Code Posted!

benko — Wed, 19 Sep 2007 17:52:21 GMT

I just posted the code from Monday's webcast on Linq to XML. Registered users can access the code from the download site on http://www.Benkotips.com. In the webcast we covered a lot of topics including how to create XML fragments in both VB and C#, and also how to query. The key to querying is to work against the new collection of XML classes including XDocument and XElement. We created a customer list in XML from a SQL Server database and then saved the results to file. Then we loaded the file into an XElement and ran a LINQ query against it.

So if that's what you're looking for, check out the webcast. For more info on the complete series check out http://www.BenkoTIPS.com/fmc.

Enjoy!

Question from today’s webcast – What’s the difference between Partial Methods & Virtual Methods?

benko — Tue, 11 Sep 2007 00:08:00 GMT

In today's webcast on LINQ to SQL we had a lot of questions. One had to do with understanding Partial Methods. The main difference between a virtual method (think OO) and partial methods (in 3.5) is that virtual methods can be implemented by various descendents differently based on what type of object you're working with. Think of an Animal object having an Eat method. This would be implemented differently for a Fish object than a Horse.

Unlike virtual methods you partial methods can be implemented only once. They are a sort of hook that you can choose to use and if not they are optimized away from the compiled code. This allows you to extend the functionality of a class with your own behavior. In LINQ to SQL the object mapping layer provides a collection of events that are implemented as partial methods. In this way we were able to run our custom logic when the company name changed.

Great question!

Mike

LINQ to SQL Webcast Code

benko — Mon, 10 Sep 2007 23:36:52 GMT

I've posted the code from today's webcast on LINQ to SQL

Enjoy!

BenkoBLOG : Framework Master Class

LINQ to XML Code Posted!

Question from today’s webcast – What’s the difference between Partial Methods &amp; Virtual Methods?

LINQ to SQL Webcast Code

Question from today’s webcast – What’s the difference between Partial Methods & Virtual Methods?