LIOT/EMIS.Web/Controls/JSONPResult.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace EMIS.Web.Controls
{
    public class JSONPResult : JsonResult
    {
        public JSONPResult()
        {
            JsonRequestBehavior = JsonRequestBehavior.AllowGet;
        }

        public string Callback { get; set; }

        ///<summary>
        ///对操作结果进行处理
        ///</summary>
        ///<paramname="context"></param>
        public override void ExecuteResult(ControllerContext context)
        {
            var httpContext = context.HttpContext;

            var callBack = Callback;

            if (string.IsNullOrWhiteSpace(callBack))
                callBack = httpContext.Request["callback"]; //获得客户端提交的回调函数名称  

            // 返回客户端定义的回调函数  
            httpContext.Response.Write(callBack + "(");
            httpContext.Response.Write(Data);          //Data 是服务器返回的数据        
            httpContext.Response.Write(");");            //将函数输出给客户端，由客户端执行  
        }
    }
}