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Beth Massi has written a couple of very good posts involving ADO.NET Data Services, which I strongly encourage folks to read. Using ADO.NET Data Services (the fundamentals, great walk-through) Building an Office Business Application for TechReady 8 (awesome
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The $expand option in the query filter is used to request entities associated with the last segment of a request. This is often used to ensure that entities can be materialized with their relationships wired together and to reduce the number of roundtrips
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Astute developers might have noticed that there are a couple of differences in the Simple EDM types and how they are mapped to types in ADO.NET Data Services . In particular, DateTimeOffset and Time properties are not available as CLR types in ADO.NET
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Today's tip is a pretty short one. If you see a 'ReflectionServiceProvider' type on an error call stack, you'll know that the 'T' in DataService<T> is not recognized as an ADO.NET Entity Framework data source (the type is actually rather simple
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If you're getting an error in your ADO.NET Data Service about 'EntityState' not being a valid property, this is the likely cause. The entity types generated by the ADO.NET Entity Framework include a number of properties that help you manage the entity
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ADO.NET Data Services have a "magic" resource, called $metadata . This entry point returns a CSDL document, which is generated as described on this MSDN page . Why CSDL? Well, it turns out that it's a great language to give a high-level description of
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Here is the summary blurb: Misys Healthcare Systems Team Uses Powerful Tools to Build Innovative Web-Based Medical Records Application For more than a decade, Misys Healthcare Systems and Veracity Solutions have partnered to develop innovative applications
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It's always been interesting to me to see how different people will approach learning a new API. Some like to go through the programming guides, some through samples, some comb the reference documentation, some dive into the IDE and let Intellisense guide
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In case you've missed these, we already have some 'How Do I?' videos up on MSDN that cover ADO.NET Entity Framework and ADO.NET Data Services. http://msdn.microsoft.com/en-us/data/cc300162.aspx Enjoy!
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MSDN Magazine has published Achieve Flexible Data Modeling With The Entity Framework , which talks about the ADO.NET Entity Framework starting from the initial motivation, then the different layers that make up the stack (including a nice if smallish
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Mike Taulty has a very nice post on timestamps and concurrency in the Entity Framework. Something that I very much like, however, is how he uses all the information available in a single .edmx file, which includes the storage, mapping and conceptual models,
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The post on updating resources in ADO.NET Data Services has gone up on the Project Astoria blog. One thing worth calling out that may not be immediately obvious is that while this is very straightforward to implement this is you have an object model that
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I'll be leaving on vacations for a couple of weeks soon, so it's very unlikely that you'll see updates in that time frame here. Vacations are a good time to recharge batteries and spend time broadening horizons, which also helps connect dots sometimes...
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I admit it - sometimes I fall in love very hard with some of my tools. Tools that make me productive. Tools that I can extend to make me productive. Tools that I rarely interact with but work in the background to make me productive. You get the idea.
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Scott posted about this yesterday, but you need to look into the bulleted list to see that the ASP.NET 3.5 Extensions CTP includes updates from the last Project Astoria release. And of course, if you've been keeping up with some of the posts that have
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