As some of you may know, I am a contributor to the SilverlightContrib open source project. Recently this project and the Silverlight Extensions open source project (also know as SLExtensions) decided to merge to create a single place for a lot of interesting functionality.
The goal of Project Niagara is to democratize the validation support. The project wants to help developers add validation support to ADO.NET Data Services as well as Web Services in Silverlight. In addition, it has the goal of allowing multiple ways to supply the validation metadata to the different data access strategies. As it is my opinion that there are scenarios where attributes are not the best idea.
I had planned on finishing these a long time ago, but working on my Pluralsight course about ASP.NET 5 distracted me. Sorry about that.
If you’ve been doing web development in .NET, you probably have at least a passing experience with ASP.NET’s MVC framework. At it’s core, it’s a common way to build and architect web applications. The new stack is built on the same metaphors from the older versions. If you’ve been using MVC before, you won’t be lost and some of the additions are welcome.
As many of you know, I’m not in the country at the moment but if I were, I’d be going to .NET Fringe in Portland, Oregon on April 12-14th. This new conference is all about open source in the .NET space and I and really excited that a conference is focused on it.
I have a couple of small, older .NET open source libraries, but my real facination has been with where the overall community is going. Both Microsoft and the community at large are all going open source and it’s great news for us all I think.
When I started the Wilder World Tour, I built a simple map so my Mom could know where I was during the trip. I thought others might be interested too.
I’d been meaning to find an extra day or two to wrap this all in a little wrapper and share it. I finally found time the last couple of days. The result is travelMap, a library that allows you to build your own travel maps including showing current location, lines between locations, and popup information about each stop.
I have been diving pretty deep into ADO.NET Data Services (see an upcoming article about ADO.NET Data Services and Silverlight 2 coming soon). I've been looking at the story around non-Entity Framework models through a Data Service and thought that NHibernate through a Data Service would be a great example.
So I tried to get it to work with the NHibernate LINQ project. The example model that the project uses is a simple Northwind model. I thought I'd just take that model and expose it via ADO.NET Data Services. I crufted up a simple Data Context object for ADO.NET Data Model but it didn't work. ADO.NET Data Services was complaining about the fact that the end-points (e.g. IQueryable<Customer>) was pointing at an Entity. This was a bug...a but in ADO.NET Data Services. I hacked together a fix to get around it (and reporting it). If you're interest, the problem is that if the key of the entity is in a base class and *not* named "ID", it fails to find it. Again, this is a bug not a feature of ADO.NET Data Services.
After spending time creating my own caches of reflection data I found the NHibernate type information to be more complete and faster. Go figure. At this point I am using the SessionFactory's GetClassMetadata and GetCollectionMetadata to return IClassMetadata and ICollectionMetadata interfaces. So far this has given me every piece of runtime information I need and means that I don't need to do any nasty (and potentially fragile) walking through the property interface of the context object. Whew...
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|Application Name||WilderBlog||Environment Name||Production|
|Application Ver||22.214.171.124||Runtime Framework||.NETCoreApp,Version=v1.1|
|App Path||D:\home\site\wwwroot||Runtime Version||.NET Core 4.6.25211.01|
|Operating System||Microsoft Windows 6.2.9200||Runtime Arch||X86|