Home > Web Front-end > JS Tutorial > Recommended usage of jquery $.getJSON combined with .NET

Recommended usage of jquery $.getJSON combined with .NET

巴扎黑
Release: 2017-07-03 09:40:09
Original
1021 people have browsed it

Without further ado, let’s give the file first:

Handler.ashx

Code

<%@ 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;
    }
}
Copy after login

test.aspx

Code

 <script src="js/jquery.js" type="text/javascript" language="javascript"></script>
    <script type="text/javascript">
        $(function(){
            $.getJSON("Handler.ashx",function(json){
            $.each(json.data,function(i){$(&#39;#content&#39;).append("姓名:"+json.data[i].name+"----性别:"+json.data[i].avg+"----时间:"+json.data[i].year+"<br/>");});
            });
        });
    </script>
 
 
<body>
    <form id="form1" runat="server">
    <p id="content"></p>
    </form>
</body>
Copy after login

The same applies to putting the contents of the Handler.ashx file into the ordinary aspx file page_load method

That is, $.getJSON("ssss.aspx"function(e){});

The above is the detailed content of Recommended usage of jquery $.getJSON combined with .NET. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template