Question

The serialization of the array returns the following JSON:

[{"Code":"AAAA","Description":"Description of AAAA"},{"Code":"BBBB","Description":"Description of BBBB"}]

My goal is to return the following JSON:

{"AAAA":{"Description":"Description of AAAA"},"BBBB":{"Description":"Description of BBBB"}}

Answer 1

You can achieve something simliar (not exactly the same you are expecting) if instead of serializing an array, build a temporary Dictionary and serialize it.

var dict = new Dictionary<String, YourClass>();
foreach (YourClass yourObj in listOfObjs)
{
    dict[yourObj.Code] = yourObj;
}
// then serialize "dict"

You could add a rule to your JSON serializer to make it avoid serializing “code” property in YourClass, and you will end up with a JSON object exactly as you show in your example.