Namespace for [DataContract]

Question

I can\'t find the namespace to use for [DataContract] and [DataMember] elements. According to what I\'ve found, it seems that adding the following

Answer 1

http://msdn.microsoft.com/en-us/library/system.runtime.serialization.datacontractattribute.aspx

DataContractAttribute is in System.Runtime.Serialization namespace and you should reference System.Runtime.Serialization.dll. It's only available in .Net >= 3