根据文本输入更改表单操作

发布于 2024-12-27 03:24:02 字数 941 浏览 3 评论 0原文

所以我有一个简单的搜索表单和提交按钮。我想要做的是验证输入以确定搜索查询中是否包含“=”，如果是，那么我希望它将输入字符串（que）发送到 vert.php。如果没有，那么我希望将其发送到 search.php。

<script type="text/javascript" language="JavaScript">
function chgact()
   {
if(document.myform.que.indexOf(=) == true) {
   document.myform.action = '/vert.php';
   }
return true;
}
</script>
    <h1>Keyword search</h1>
    <form name="myform" method="post" action="/search.php"  onSubmit="return chgact()">
      Keywords: <br/>
      <input type="text" name="que" id="que" / >
      <p/>
      Items to display: <br/>
      <select name="i">
        <option value="10">10</option>
        <option value="25">25</option>
        <option value="50">50</option>
      </select>
      <p/>
      <input type="submit" name="submit" value="Search"/>
    </form>

任何帮助都将非常感激！ :)

原文

So what I have is a simple search form and submit button. What I want to do is validate the input to determine whether or not an "=" was included in the search query, if so then I want it to send the input string (que) to vert.php. If not then I would like it to send to search.php.

<script type="text/javascript" language="JavaScript">
function chgact()
   {
if(document.myform.que.indexOf(=) == true) {
   document.myform.action = '/vert.php';
   }
return true;
}
</script>
    <h1>Keyword search</h1>
    <form name="myform" method="post" action="/search.php"  onSubmit="return chgact()">
      Keywords: <br/>
      <input type="text" name="que" id="que" / >
      <p/>
      Items to display: <br/>
      <select name="i">
        <option value="10">10</option>
        <option value="25">25</option>
        <option value="50">50</option>
      </select>
      <p/>
      <input type="submit" name="submit" value="Search"/>
    </form>

Any help at all would be so grealty appreciated! :)

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

撩起发的微风 2025-01-03 03:24:03

将第 4 行更改为 if (document.myform.que.value.indexOf('=') != -1) {

您需要获取 que 的值，您需要用引号括起等号（您正在搜索字符'='），indexOf 函数返回 -1（如果未找到）或第一个字符的位置出现次数，它是一个整数。它不返回布尔值。

这是更新后的代码：

<script type="text/javascript" language="JavaScript">
function chgact()
   {
if(document.myform.que.value.indexOf('=') != -1) {
   document.myform.action = '/vert.php';
   }
return true;
}
</script>
    <h1>Keyword search</h1>
    <form name="myform" method="post" action="/search.php"  onSubmit="return chgact()">
      Keywords: <br/>
      <input type="text" name="que" id="que" / >
      <p/>
      Items to display: <br/>
      <select name="i">
        <option value="10">10</option>
        <option value="25">25</option>
        <option value="50">50</option>
      </select>
      <p/>
      <input type="submit" name="submit" value="Search"/>
    </form>

Change line 4 to if (document.myform.que.value.indexOf('=') != -1) {

You need to get the value of que, you need to enquote the equals sign (you're searching for the character '='), and the indexOf function returns either -1 if not found or the position of the first occurrence, which is an integer. It does not return a boolean value.

Here is the updated code:

<script type="text/javascript" language="JavaScript">
function chgact()
   {
if(document.myform.que.value.indexOf('=') != -1) {
   document.myform.action = '/vert.php';
   }
return true;
}
</script>
    <h1>Keyword search</h1>
    <form name="myform" method="post" action="/search.php"  onSubmit="return chgact()">
      Keywords: <br/>
      <input type="text" name="que" id="que" / >
      <p/>
      Items to display: <br/>
      <select name="i">
        <option value="10">10</option>
        <option value="25">25</option>
        <option value="50">50</option>
      </select>
      <p/>
      <input type="submit" name="submit" value="Search"/>
    </form>

回复收藏 0 原文