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Friday, May 09, 2008

Visual Basic "Learn" Section of MSDN - Give it a Spin (Beth Massi)

by VBTeam via The Visual Basic Team on 5/9/2008 8:55:00 PM

The Learn tab of the Visual Basic Developer Center is being updated with a bunch of new content and VS 2008 topics. If you look at the center of the page you'll see the list of topics and when you click one, you should now see some fresh stuff. Currently there's over 200 items presented on the topic pages and we're adding more every week. Right now each of the topics are displayed in a fixed order by content type (i.e. Webcast, Video, Article, Blog, etc.) but we plan on ... [ read more ] 3 comment(s)

IEquatable(Of T) and GetHashCode()

by Jared Parsons via Jared Parsons on 5/9/2008 12:00:53 PM

This is a bit of a follow up to a previous post we discussed how to properly implement equality in VB. Several users commented/asked that IEquatable(Of T) could be used in place of overriding Equals(). Since IEquatable(Of T) doesn't define a GetHashCode() method the user didn't need to define it and hence run into all of the problems associated with GetHashCode() usage. Unfortunately this is not the case. Several parts of the framework link IEquatable(Of T ... [ read more ]

Entity Framework's Golden Rule and its Platinum Rule

by Julie Lerman via Julie Lerman on 5/9/2008 1:05:42 AM

I have found myself explaining this in conference sessions so I thought I would write it down in my blog. Entity Framework has a Golden Rule. Though shalt not do nuttin' that the developer has not explicitly told you to do. The lack of implicit lazy loading is one of the more notable (and hotly contested by some) example of this. But one day when I was coding, Entity Framework did something that I did not ask it to do. I emailed Danny Simmons to tattle on the API. But Danny explained ... [ read more ] 2 comment(s)

Another Domain Developer's view of Entity Framework and Lazy Loading

by Julie Lerman via Julie Lerman on 5/9/2008 12:52:18 AM

Like Jeremy Miller, who has Transparent Lazy Loading for Entity Framework on his Christmas Wish List , Timothy Khouri does not like the fact that Entity Framework doesn't support Lazy Loading. However, since he really likes Entity Framework, he wrote some code that will enforce Lazy Loading for him. Entity Framework promises not to do anything you don't explicitly tell it to do, so Timothy found a way to keep telling EF to do this for him because that's what he wants. After looking at LIN ... [ read more ] 8 comment(s)

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