如何将对象数组序列化为JSON字典？

Question

I need to serialize an array of objects as JSON dictionary.

Array item like this:

class Entry {
    public string Id{get;set;}
    public string Value{get;set;}
}

So array like

var arr = new[]
    {
        new Entry{Id = "one", Value = "First"},
        new Entry{Id = "two", Value = "Second"},
        new Entry{Id = "tri", Value = "Third"},
    };

I expect to be serialized as follows:

{
    one: {Title: "First"},
    two: {Title: "Second"},
    tri: {Title: "Third"}
}

Is it possible? Something near ContractResolver?

Thanks.

Answer 1

Using Json.Net

string json = JsonConvert.SerializeObject(
                       arr.ToDictionary(x => x.Id, x => new { Title = x.Value }));

or JavaScriptSerializer

string json2 = new JavaScriptSerializer()
             .Serialize(arr.ToDictionary(x => x.Id, x => new { Title = x.Value }));

Answer 2

Use the JavaScriptSerializer :

var keyValues = new Dictionary<string, string>
           {
               { "one", "First" },
               { "two", "Second" },
               { "three", "Third" }
           };

JavaScriptSerializer js = new JavaScriptSerializer();
string json = js.Serialize(keyValues);