Make ASP.NET WCF convert dictionary to JSON, omitting “Key” & “Value” tags

Question

Here\'s my dilemma. I\'m using a RESTful ASP.NET service, trying to get a function to return a JSON string in this format:

{\"Test1Key\":\"Test1Value\",\"Te         


        

Answer 1

The .NET dictionary class won't serialize any other way than the way you described. But if you create your own class and wrap the dictionary class then you can override the serializing/deserializing methods and be able to do what you want. See example below and pay attention to the "GetObjectData" method.

    [Serializable]
    public class AjaxDictionary : ISerializable
    {
        private Dictionary _Dictionary;
        public AjaxDictionary()
        {
            _Dictionary = new Dictionary();
        }
        public AjaxDictionary( SerializationInfo info, StreamingContext context )
        {
            _Dictionary = new Dictionary();
        }
        public TValue this[TKey key]
        {
            get { return _Dictionary[key]; }
            set { _Dictionary[key] = value; }
        }
        public void Add(TKey key, TValue value)
        {
            _Dictionary.Add(key, value);
        }
        public void GetObjectData( SerializationInfo info, StreamingContext context )
        {
            foreach( TKey key in _Dictionary.Keys )
                info.AddValue( key.ToString(), _Dictionary[key] );
        }
    }