January 2010 - Posts

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Aspen – part 7 of X – Entity Validations by Fredrik N

Dag König and I had a meeting today about the Aspen project. We talked most of the time about validations and how we should implement it. I decided to post about the current decision made. Validation on Entity level Sometimes it feels important to add...
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Aspen – part 6 of X – Reusing ObjectContex among Repositories during a DomainSerivce operation. by Fredrik N

(I had to shorten the title down a bit ;)) I promised to write about how I have implemented the solution mentioned in my previous post and I’m going to keep my promise. But I will not use this solution in the Aspen project, more about that in the end...
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Aspen – A sample app using Silverlight 4 and .Net 4.0 – part 5 of X – New Repository implementation by Fredrik N

This will be quite small blog post but the time is running out and I have to go to bed. But I wanted to let you know what I’m working on at the moment in the “Aspen” project. I have done several changes to the code. No methods calls to the SubmitChanges...
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Aspen – A sample app using Silverlight 4 and .Net 4.0 – part 4 of X – DomainService, using DTO and Unity by Fredrik N

Note: The code in this post is based on the VS 2010 Beta 2, and changes can be made until it hits RTM. In my previous post I wrote about how I have implemented the MemberRepository and prepare it for using Dependency injection of an ObjectContext etc...
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Aspen – A sample app using Silverlight 4 and .Net 4.0 – part 3 of X – Repository implementation by Fredrik N

Note: The example code in this blog post is based on the VS2010 Beta 2, changes can be made until VS2010 hits RTM. In my previous post I wrote about how I use MEF and Entity Framework 4.0 Code-only feature. I have done a lot of refactoring and added the...
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Aspen – A sample app using Silverlight 4 and .Net 4.0 – part 2 of X – MEF and EF 4 code-only by Fredrik N

Note: The code examples in this blog post will be based on technical previews and betas of .Net 4.0 and VS2010. So changes can be made before it hits RTM. If you haven’t read the first part about the Aspen project, you can find it here . In this part...
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Aspen – A sample app using Silverlight 4 and .Net 4.0 – part 1 of X by Fredrik N

Together with Dag König and Danwei Tran at Microsoft, I’m building an app with the code name “Aspen”. This application will use most of the new features shipped with Visual Studio 2010, such as, Silverlight 4, Entity Framework 4, MEF, WCF RIA Services...
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Silverlight – About validation when binding to custom forms – Part 2 using Silverlight 4 by Fredrik N

In my first part about validation and binding to custom forms I wrote about how we could with some small hack enable the Validation Tooltip for a bounded control manually when we press a button. In this post I will instead use Silverlight 4 with Commanding...
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Silverlight – About validation when binding to custom forms by Fredrik N

I have notice that some people have problems about how to implement User Input validation when they don’t use controls like the DataForm or DataGrid  etc, and instead bind directly to a TextBox or other user input controls. In this post I will write...
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Silverlight - Navigate to a specific Page using a Hyperlink by Fredrik N

Sometimes I think it’s hard to know what I should write about, my ideas comes from different sources. Some of my posts is based on questions people are asking on forums. If someone ask one specific question, it’s a big chance that someone else have the...
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