public class JsonNetResult : ActionResult{  public Encoding ContentEncoding { get; set; }  public string ContentType { get; set; }  public object Data { get; set; }   public JsonSerializerSettings SerializerSettings { get; set; }  public Formatting Formatting { get; set; }   public JsonNetResult()  {    SerializerSettings = new JsonSerializerSettings();  }   public override void ExecuteResult(ControllerContext context)  {    if (context == null)      throw new ArgumentNullException("context");     HttpResponseBase response = context.HttpContext.Response;     response.ContentType = !string.IsNullOrEmpty(ContentType)      ? ContentType      : "application/json";     if (ContentEncoding != null)      response.ContentEncoding = ContentEncoding;     if (Data != null)    {      JsonTextWriter writer = new JsonTextWriter(response.Output) { Formatting = Formatting };       JsonSerializer serializer = JsonSerializer.Create(SerializerSettings);      serializer.Serialize(writer, Data);       writer.Flush();    }  }}

This is an ActionResult I wrote to return JSON from  to the browser using .

The benefit of using JsonNetResult over the built in JsonResult is you get a better serializer (IMO [:)]) and all the other benefits of Json.NET like nicely formatted JSON text.

http://james.newtonking.com/json/help/index.html

使用

public JsonNetResult Edit(String elementID, String tableName, String idInElementDetail)        {            BookElement be = new BookElement();            String inputTemplate = be.getInputTemplateStringByID(elementID, Server.MapPath("~"));            JObject outObject = new JObject();            outObject.Add("inputTemplate",new JValue(inputTemplate));            ElementInPage el = new ElementInPage();            DataTable eData = el.getElementInPageDetail(tableName, idInElementDetail);            JObject dataObject = new JObject();            foreach (DataRow eRow in eData.Rows)            {                foreach (DataColumn eCol in eData.Columns)                {                    dataObject.Add(eCol.ColumnName,new JValue(eRow[eCol].ToString()));                }            }            outObject.Add("elementData",dataObject);            Debug.WriteLine("outdata:" + outObject.ToString());            JsonNetResult jsonNet = new JsonNetResult();            jsonNet.Data = outObject;            return jsonNet;        }