JS改变input的value值不触发onchange事件解决方案

小鱼儿 2022-08-05 00:54 512阅读 0赞

# JS改变input的value值不触发onchange事件解决方案 #

实测IE11, Chrome可行，代码如下：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
      <head>
    <meta charset="utf-8" />   
        <title>My JSP 'testInput.jsp' starting page</title>
        
     <meta http-equiv="pragma" content="no-cache">
     <meta http-equiv="cache-control" content="no-cache">
     <meta http-equiv="expires" content="0">    
     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
     <meta http-equiv="description" content="This is my page">
    <script type="text/javascript">
    function addValue(){
       document.getElementById("mytext").value='dfdsafdsfsfsdfsdfdsf';
       init();
    }
    function addValue2(){
        document.getElementById("mytext").value='哈哈哈哈';
        init();
    }
    function changeValue(){
        document.getElementById("webtest").value=document.getElementById("mytext").value;
    }
    function init(){
       if("\v"=="v"){//IE浏览器
        document.getElementById("mytext").onpropertychange=changeValue;
       }else{ // 其他浏览器
     document.getElementById("mytext").addEventListener("input",changeValue(),false);
       }
      }
    </script>
      </head>
      <body>
        <input type="button" id="txts"  value="点击加载值!" οnclick="addValue();"/>
        <input type="button" id="txts2"  value="第二次改加载值!" οnclick="addValue2();"/>
        <input type="text" name="textfield" id="mytext"/>
        <div>您输入的值为：<input id="webtest"></input></div>
      </body>
    </html>

更进一步的内容请参考：

[http://blog.csdn.net/zhbitxhd/article/details/12943091][http_blog.csdn.net_zhbitxhd_article_details_12943091]

[http_blog.csdn.net_zhbitxhd_article_details_12943091]: http://blog.csdn.net/zhbitxhd/article/details/12943091