Home > Developer > Ajax

Simple Ajax example-no new sum calculation

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

<% @ Page Language = "C #" AutoEventWireup = "true" CodeFile = "SumNumber. aspx. cs" Inherits = "SumNumber" %>

<Html xmlns = "http://www.w3.org/1999/xhtml">
<Head runat = "server">
<Title> example of sum without refreshing </title>
<Script type = "text/javascript">
Var xmlHttp;
Function createXMLHttpRequest ()
{
If (window. ActiveXObject)
{
XmlHttp = new ActiveXObject ("Microsoft. XMLHTTP ");
}
Else if (window. XMLHttpRequest)
{
XmlHttp = new XMLHttpRequest ();
}
}
// Processing Method
Function AddNumber ()
{
CreateXMLHttpRequest ();
Var url = "Handler. ashx? Num1 = "+ document. getElementById (" num1 "). value +" & num2 = "+ document. getElementById (" num2 "). value;
XmlHttp. open ("GET", url, true );
XmlHttp. onreadystatechange = ShowResult;
XmlHttp. send (null );
}
// Callback Method
Function ShowResult ()
{
If (xmlHttp. readyState = 4)
{
If (xmlHttp. status = 200)
{
Document. getElementById ("sum"). value = xmlHttp. responseText;
}
}
}
</Script>
</Head>
<Body>
<Form id = "form1" runat = "server">
<Div style = "text-align: center">
<Br/> simple example of the operation of the brushless NEX algorithm <br/>
<Br/>
<Input id = "num1" style = "width: pixel PX" type = "text" onkeyup = "AddNumber ();" value = "0"/>
+ <Input id = "num2" style = "width: 95px" type = "text" onkeyup = "AddNumber ();" value = "0"/>
= <Input id = "sum" style = "width: 97px" type = "text"/> </div>
</Form>
</Body>
</Html>

This instance also uses a program to process files. The Code is as follows:
<% @ WebHandler Language = "C #" Class = "Handler" %>

Using System;
Using System. Web;
Using System. Data;
Using System. Data. SqlClient;

Public class Handler: IHttpHandler
{

Public void ProcessRequest (HttpContext context)
{
Context. Response. ContentType = "text/plain ";
Int result = Convert. ToInt32 (context. Request. QueryString ["num1"]) + Convert. ToInt32 (context. Request. QueryString ["num2"]);
Context. Response. Write (result );
}
 
Public bool IsReusable
{
Get
{
Return false;
}
}
}

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
mongodb sum example erlang calculation example floating point calculation example mod calculation example mysql sum example sum mongodb example ajax php example
Related Article
JQuery AJAX Timeout Timeout problem detailed _jquery
The difference between traditional web development patterns a...
JQuery ajax File Download _ajax
Ajax various implementation methods compare _ajax
Ajax Getting Started Guide (ii)
SPRINGMVC passing a parameter list object through Ajax or pas...

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

What's Trending
Top 10 Tags
datastax versions naming convention zookeeper client class definition md5 microsoft sql server 2005 data structures exception handling error handling
Top 10 Keywords
microsoft download center down wordpress address url site address url wordpress address url windows installer 4 0 download 302 not found web address url definition site address url wordpress db2 integer mac os installation step by step pdf abbreviation for return

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    Open a Ticket

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

    Learn More