WCF: DataMember attribute on property vs. member

Question

In wcf, what is the difference between applying the DataMember attribute on a property

private int m_SomeValue;

[DataMember]  
public int SomeVal         


        

Answer 1

There are good reasons you may want to mark fields rather than properties as DataMember .

Please check this for more details : http://blog.walteralmeida.com/2010/05/wcf-and-datacontract-serialization-internals-and-tips-.html

By the way: ContractSerializers will serialize any private field that has the DataMemberAttribute on it only if running in full trust environment. Does not work in partial trust (check the blog listed above for a solution)