title: OData / WCF Data Service Validation Strategy
body: <p>We’re building a WCF data service that should serve any type of consumer client reaching from a WPF Desktop app to smartphones and tablet clients written in .net and non .net languages.</p>
  
  <p>After setting up a WCF data service we’re looking for a way  the standard way to <strong>transport validation errors occurring in the entity framework model validation code back to our consuming WPF application</strong>. Our goal is to feed the UI elements ( bindings ) with <strong>validation errors in one single pass</strong> by getting all validation errors back from a DbContext.SaveChanges() call.</p>
  
  <p>Could you please suggest how to transport validation errors in wcf data services using an entity framework model? Is there anything in the pipeline providing <strong>out of the box support</strong> for such a feature like WCF RIA provides? </p>
  
  <p>What I’ve found so far concerning this topic</p>
  
  <p>Vocabularies in OData
  <a href="http://www.odata.org/blog/vocabularies-in-odata" rel="nofollow">http://www.odata.org/blog/vocabularies-in-odata</a></p>
  
  <p>Validation Strategy
  <a href="http://social.msdn.microsoft.com/Forums/en-US/adodotnetdataservices/thread/73dcb4c2-f788-44d4-9d99-f4ba2a5cef55?prof=required" rel="nofollow">http://social.msdn.microsoft.com/Forums/en-US/adodotnetdataservices/thread/73dcb4c2-f788-44d4-9d99-f4ba2a5cef55?prof=required</a></p>
  
  <p>Returning validation result
  <a href="http://social.msdn.microsoft.com/Forums/en-US/adodotnetdataservices/thread/ef6479b8-e79e-4e4d-a645-4ad73195af90?prof=required" rel="nofollow">http://social.msdn.microsoft.com/Forums/en-US/adodotnetdataservices/thread/ef6479b8-e79e-4e4d-a645-4ad73195af90?prof=required</a></p>
  
  <p>Any Help or Advice Gladly Appreciated</p>