Recommended usage of jquery $.getJSON combined with .NET-JS Tutorial-php.cn

Home

Web Front-end

JS Tutorial

Recommended usage of jquery $.getJSON combined with .NET

巴扎黑

Jul 03, 2017 am 09:40 AM

javascriptjquery

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;
    }
}

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>

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!

Statement

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

Java vs JavaScript: A Detailed Comparison for DevelopersMay 16, 2025 am 12:01 AM

JavaandJavaScriptaredistinctlanguages:Javaisusedforenterpriseandmobileapps,whileJavaScriptisforinteractivewebpages.1)Javaiscompiled,staticallytyped,andrunsonJVM.2)JavaScriptisinterpreted,dynamicallytyped,andrunsinbrowsersorNode.js.3)JavausesOOPwithcl

Javascript Data Types : Is there any difference between Browser and NodeJs?May 14, 2025 am 12:15 AM

JavaScript core data types are consistent in browsers and Node.js, but are handled differently from the extra types. 1) The global object is window in the browser and global in Node.js. 2) Node.js' unique Buffer object, used to process binary data. 3) There are also differences in performance and time processing, and the code needs to be adjusted according to the environment.

JavaScript Comments: A Guide to Using // and /* */May 13, 2025 pm 03:49 PM

JavaScriptusestwotypesofcomments:single-line(//)andmulti-line(//).1)Use//forquicknotesorsingle-lineexplanations.2)Use//forlongerexplanationsorcommentingoutblocksofcode.Commentsshouldexplainthe'why',notthe'what',andbeplacedabovetherelevantcodeforclari

Python vs. JavaScript: A Comparative Analysis for DevelopersMay 09, 2025 am 12:22 AM

The main difference between Python and JavaScript is the type system and application scenarios. 1. Python uses dynamic types, suitable for scientific computing and data analysis. 2. JavaScript adopts weak types and is widely used in front-end and full-stack development. The two have their own advantages in asynchronous programming and performance optimization, and should be decided according to project requirements when choosing.

Python vs. JavaScript: Choosing the Right Tool for the JobMay 08, 2025 am 12:10 AM

Whether to choose Python or JavaScript depends on the project type: 1) Choose Python for data science and automation tasks; 2) Choose JavaScript for front-end and full-stack development. Python is favored for its powerful library in data processing and automation, while JavaScript is indispensable for its advantages in web interaction and full-stack development.

Python and JavaScript: Understanding the Strengths of EachMay 06, 2025 am 12:15 AM

Python and JavaScript each have their own advantages, and the choice depends on project needs and personal preferences. 1. Python is easy to learn, with concise syntax, suitable for data science and back-end development, but has a slow execution speed. 2. JavaScript is everywhere in front-end development and has strong asynchronous programming capabilities. Node.js makes it suitable for full-stack development, but the syntax may be complex and error-prone.

JavaScript's Core: Is It Built on C or C ?May 05, 2025 am 12:07 AM

JavaScriptisnotbuiltonCorC ;it'saninterpretedlanguagethatrunsonenginesoftenwritteninC .1)JavaScriptwasdesignedasalightweight,interpretedlanguageforwebbrowsers.2)EnginesevolvedfromsimpleinterpreterstoJITcompilers,typicallyinC ,improvingperformance.

JavaScript Applications: From Front-End to Back-EndMay 04, 2025 am 12:12 AM

JavaScript can be used for front-end and back-end development. The front-end enhances the user experience through DOM operations, and the back-end handles server tasks through Node.js. 1. Front-end example: Change the content of the web page text. 2. Backend example: Create a Node.js server.

See all articles