下面的例子将展示其结果是没有重载显示提交。
当用户选择一个选项上面,一个函数叫做“getVote()”执行。该功能所引发的“的OnClick”事件
<html> <head> <script type="text/javascript"> function getVote(int) { if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { document.getElementById("poll").innerHTML=xmlhttp.responseText; } } xmlhttp.open("GET","poll_vote.php?vote="+int,true); xmlhttp.send(); } </script> </head> <body> <div id="poll"> <h3>Do you like PHP and AJAX so far?</h3> <form> Yes: <input type="radio" name="vote"value="0" onclick="getVote(this.value)" /> <br />No: <input type="radio" name="vote"value="1" onclick="getVote(this.value)" /> </form> </div> </body> </html>
The getVote() function does the following:
Create an XMLHttpRequest object
Create the function to be executed when the server response is ready
Send the request off to a file on the server
Notice that a parameter (vote) is added to the URL (with the value of the yes or no option)
判断控件的disabled属性是不是true,是的话return false;实现禁用radio的onclick事件并可再次启用它
方法一:(同时实现禁用,重新启用功能,只能针对button text类型的INPUT,对div无法禁用其onclick事件)
<input type="button" value="A button. Click me to see the alert box." onclick="alert('I am clicked.');" id="cmd1" />
<br/>
<input type="button" value="Click me to disable the first button" onclick="document.getElementById('cmd1').disabled=true;" />
<br/>
方法二,三:(实现移除radio的onclick事件,需再次重新注册事件,可以禁用div的onclick事件)
<input type="button" value="Click me to disable the onclick event on first button" onclick="document.getElementById('cmd1').onclick=function(){};" />
<br/>
三:
<input type="button" value="Click me to disable the onclick event on first button" onclick="document.getElementById('cmd1').onclick=null;" />
为radio类型的INPUT添加客户端脚本(附加实现JS来禁用onClick事件思路代码)
声明:登载此文出于传递更多信息之目的,并不意味着赞同其观点或证实其描述。
Reply on: @reply_date@
@reply_contents@