C# MVC中返回JSON 对象

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 ASP.NET MVC to the browser using Json.NET.

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.

//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;

        }

另外一种 就是JsonResult，这个是这个NewTon JSON包本身就支持的，但这个一般是从Model序列化而来。

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