mcs/class/System.Web.Mvc3/Mvc/JsonResult.cs

   1 namespace System.Web.Mvc {
   2     using System;
   3     using System.Text;
   4     using System.Web;
   5     using System.Web.Mvc.Resources;
   6     using System.Web.Script.Serialization;
   7
   8     public class JsonResult : ActionResult {
   9
  10         public JsonResult() {
  11             JsonRequestBehavior = JsonRequestBehavior.DenyGet;
  12         }
  13
  14         public Encoding ContentEncoding {
  15             get;
  16             set;
  17         }
  18
  19         public string ContentType {
  20             get;
  21             set;
  22         }
  23
  24         public object Data {
  25             get;
  26             set;
  27         }
  28
  29         public JsonRequestBehavior JsonRequestBehavior {
  30             get;
  31             set;
  32         }
  33
  34         public override void ExecuteResult(ControllerContext context) {
  35             if (context == null) {
  36                 throw new ArgumentNullException("context");
  37             }
  38             if (JsonRequestBehavior == JsonRequestBehavior.DenyGet &&
  39                 String.Equals(context.HttpContext.Request.HttpMethod, "GET", StringComparison.OrdinalIgnoreCase)) {
  40                 throw new InvalidOperationException(MvcResources.JsonRequest_GetNotAllowed);
  41             }
  42
  43             HttpResponseBase response = context.HttpContext.Response;
  44
  45             if (!String.IsNullOrEmpty(ContentType)) {
  46                 response.ContentType = ContentType;
  47             }
  48             else {
  49                 response.ContentType = "application/json";
  50             }
  51             if (ContentEncoding != null) {
  52                 response.ContentEncoding = ContentEncoding;
  53             }
  54             if (Data != null) {
  55                 JavaScriptSerializer serializer = new JavaScriptSerializer();
  56                 response.Write(serializer.Serialize(Data));
  57             }
  58         }
  59     }
  60 }