jquery $.getJSON 与.NET 组合用法推荐

jquery $.getJSON 与.NET 结合用法推荐

废话不多说，给出文件先:

Handler.ashx

代码

<% @ WebHandler Language = " C# " Class = " Handler " %>

using System;
using System.Web;
using System.Data;
using System.Text;
public class Handler : IHttpHandler {

     public void ProcessRequest (HttpContext context) {
         /* context.Response.ContentType = "text/plain";
        string data = "[{name:\"fan\",age:26},{name:\"wang\",age:25}]";//构建的json数据
        context.Response.Write(data); */

        DataSet ds = new DataSet();
        DataTable dt = new DataTable();
        dt.Columns.Add( " name " , typeof ( string ));
        dt.Columns.Add( " year " , typeof ( string ));
        dt.Columns.Add( " avg " , typeof ( string ));
        DataRow tr = dt.NewRow();
        tr[ " name " ] = " 张三 " ;
        tr[ " year " ] = " 2005-02-02 " ;
        tr[ " avg " ] = " 男 " ;
        dt.Rows.Add(tr);
         // ds.Tables.Add(dt);
        DataRow tr2 = dt.NewRow();
        tr2[ " name " ] = "李四 " ;
        tr2[ " year " ] = " 2007-02-02 " ;
        tr2[ " avg " ] = " 女 " ;
        dt.Rows.Add(tr2);
        ds.Tables.Add(dt);

        context.Response.Clear();
        context.Response.ContentEncoding = Encoding.UTF8;
        context.Response.ContentType = " application/json " ;
         // Response.Write("{\"success\":true,\"name\":\"张三\",\"year\":\"2009-12-12\"}");
        context.Response.Write(getJSON(ds));
        context.Response.Flush();
        context.Response.End();
    }

     public bool IsReusable {
         get {
             return false ;
        }
    }
     private static string getJSON(DataSet ds) // 这里调用了JSON帮助文件，jsonHelp.cs 就不放出源码了
    {
        Json.JSONHelper jsonHelp = new Json.JSONHelper();

        jsonHelp.success = true ;
         // jsonHelp.totlalCount = getPrjListCount();
        jsonHelp.totlalCount = ds.Tables[ 0 ].Rows.Count;

         foreach (DataRow dr in ds.Tables[ 0 ].Rows)
        {
            jsonHelp.AddItem( " name " , dr[ " name " ].ToString());
            jsonHelp.AddItem( " avg " , dr[ " avg " ].ToString());

             if (dr[ " year " ] != DBNull.Value)
            {
                jsonHelp.AddItem( " year " , Convert.ToDateTime(dr[ " year " ]).ToString( " yyyy/MM/dd " ));
            }
             else
            {
                jsonHelp.AddItem( " year " , string .Empty);
            }

            jsonHelp.ItemOk();
        }

         string strResult = jsonHelp.ToString();
         return strResult;
    }
}

test.aspx

代码

     < script src = " js/jquery.js " type = " text/javascript " language = " javascript " >< / script>
     < script type = " text/javascript " >
        $( function (){
            $.getJSON( " Handler.ashx " , function (json){
            $.each(json.data, function (i){$( ' #content ' ).append( " 姓名： " + json.data[i].name + " ----性别： " + json.data[i].avg + " ----时间： " + json.data[i].year + " <br/> " );});
            });
        });
     < / script>

把Handler.ashx文件内容放入普通aspx文件page_load方法中同样适用

即$.getJSON("ssss.aspx"function(e){});

http://www.cnblogs.com/shshshdy/archive/2010/05/18/1737921.html

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