title: Set default value in a DataContract?
body: <p>How can I set a default value to a DataMember
  for example for the one shown below:</p>
  
  <p>I want to set ScanDevice="XeroxScan" by default</p>
  
  <pre><code>    [DataMember]
      public string ScanDevice { get; set; }
  </code></pre>