DRAG DROP
There is MS Visual Studio 2010 and MS .NET Framework 4 application PassGuideApp.
PassGuideApp uses the ADO.NET Entity Framework.
POCO is used for entity modeling.
WCF data services service is used.
How can you ensure that the entities can be sent to the service in XML format?
Note: Plain Old CLR Objects: POCO
WCP: Windows Communication Foundation
Answer: 
Explanation:
The specified answer seems correct. See the following link:
http://zamd.net/2008/05/20/datacontract-serializer-and-isreference-property/
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Another useful link:
http://stackoverflow.com/questions/1037201/isreference-property-in-data-contract
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