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 should be enough  but in my case it is not   using System  using System Runtime Serialization    Here is a snippet of my code   using System  using System Runtime Serialization   namespace MyNamespace         DataContract      public class Tuple lt T1  T2 gt                   A custom implementation of a Tuple                                                   And the error I get      The type or namespace name  DataContract  could not be found  are you missing a using directive or an assembly reference     Am I not using the right namespaces

User · Answer

DataContract  and  DataMember  attribute are found in System ServiceModel namespace which is in System ServiceModel dll    System ServiceModel uses the System and System Runtime Serialization namespaces to serialize the datamembers

User · Answer

DataContractAttribute Class is in the System Runtime Serialization namespace   You should add a reference to System Runtime Serialization dll  That assembly isn t referenced by default though  To add the reference to your project you have to go to References -  Add Reference in the Solution Explorer and add an assembly reference manually

User · Answer

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

User · Answer

In visual studio for  Net 4 0 framework     Try to add new reference to project   On  Net Tab  Search System Runtime Serialization   Now  you can use using System Runtime Serialization  And the error will not be shown

User · Answer

I solved this problem by adding C  Program Files  x86  Reference Assemblies Microsoft Framework NETFramework v4 0 System Runtime Serialization dll  in the reference

User · Answer

First  I add the references to my Model  then I use them in my code  There are two references you should add      using System ServiceModel    using System Runtime Serialization    then  this problem was solved in my program  I hope this answer can help you  Thanks

[c#] Namespace for [DataContract]

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