Silverlight TV 52: Entity Level Validation, Defining MetaData and Nested ComboBoxes with WCF RIA Ser

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In this video, John sits down with Kyle McClellan of the WCF RIA Services team and responds to top questions from the RIA Services forums. Kyle runs through various scenarios and provides great guidance on how to identify and solve these issues. Here are some of the topics he covers: How do I investigate exceptions thrown from my DomainContext? How do I add a ComboBox to a DataGrid or DataForm? How do I change the default metadata on an Entity when using the LinqToEntitiesDomainService? How do I add cross-field validation to an Entity? Relevant links: http://johnpapa.net/ Johns blog and on Twitter ( http://twitter.com/john_papa @john_papa ) http://blogs.msdn.com/b/kylemc/ Kyles blog and on Twitter ( http://twitter.com/KyleMcClellan @KyleMcClellan ) More about http://silverlight.net/riaservices RIA Services http://jpapa.me/riasvcsforums RIA Services Forums Follow us on Twitter <a title="Follow SilverlightTV at Twitter http://www.twitter.com/SilverlightTV @SilverlightTV or on the web at http://silverlight.tv/ http://silverlight.tv http://jpapa.me/slfs10 Register now for the Silverlight Firestarter, Dec 2, 2010! <a rel="lightbox http://jpapa.me/slfs10 <img src="http://files.channel9.msdn.com/thumbnail/ed08c3f1-1a91-42b7-bd26-2edd85271d99.jpg" alt="Firestarter <a rel="lightbox http://jpapa.me/slfs10 <img src="http://m.webtrends.com/dcs1wotjh10000w0irc493s0e_6x1g/njs.gif?dcssip=channel9.msdn.com&dcsuri=http://channel9.msdn.com/Feeds/RSS&WT.dl=0&WT.entryid=Entry:RSSView:c474b274cbf44e90ae6a9e2c005c580c

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