Can JavaScriptSerializer exclude properties with null/default values?

Question

I'm using JavaScriptSerializer to serialize some entity objects.

The problem is, many of the public properties contain null or default values. Is there any way to make JavaScriptSerializer exclude properties with null or default values?

I would like the resulting JSON to be less verbose.

Answer 1

The solution that worked for me:

The serialized class and properties would be decorated as follows:

[DataContract]
public class MyDataClass
{
  [DataMember(Name = "LabelInJson", IsRequired = false)]
  public string MyProperty { get; set; }
}

IsRequired was the key item.

The actual serialization could be done using DataContractJsonSerializer:

public static string Serialize<T>(T obj)
{
  string returnVal = "";
  try
  {
    DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
    using (MemoryStream ms = new MemoryStream())
    {
      serializer.WriteObject(ms, obj);
      returnVal = Encoding.Default.GetString(ms.ToArray());
    }
  }
  catch (Exception /*exception*/)
  {
    returnVal = "";
    //log error
  }
  return returnVal;
}