1

我不知道如何使用选择框选项启用和禁用文本字段。

也许我在下面的代码中完全错误地写了这个。如果我这样做了，请告诉我正确的代码。

<body>
<table width="500" border="1">
  <form style="text-align:center" id="form1" name="form1" method="post" action="">
    <tr>
      <th width="32" nowrap="nowrap">Status</th>
      <th width="32" nowrap="nowrap">Runs</th>
      <th width="16" nowrap="nowrap">6</th>
    </tr>
<?php
$('#Status1').change(function(){
var theVal = $('#Status1').val();
switch(theVal){
    case'0':
        $('#Runs1').prop('disabled', true);
        break;
    case'1':
        $('#Runs1').prop('disabled', false);
        break;
    case'2':
        $('#Runs1').prop('disabled', true);
        break;
    }
});
?>
<tr>
 <td align='center'>
   <select id='Status1'><option value='0'>Not Playing</option><option value='1'>Playing</option><option value='2'>Out</option></select></td>
 <td align='center'>
   <input style='font-weight:bold; background:#FFFFFF; text-align:right; color:#000000;' disabled='disabled' name='Runs1' type='text' id='Runs1' size='5' maxlength='5' value='' />    
 </td>
</tr>
</form>
</table>
</body>
4

6 回答 6

2

启用/禁用#Run1 输入框的代码嵌套在 PHP 标记之间（服务器端），但此代码是用 javascipt（客户端）编写的。

<body>
<table width="500" border="1">
  <form style="text-align:center" id="form1" name="form1" method="post" action="">
    <tr>
      <th width="32" nowrap="nowrap">Status</th>
      <th width="32" nowrap="nowrap">Runs</th>
      <th width="16" nowrap="nowrap">6</th>
    </tr>
<script type="text/javascript">
$('#Status1').change(function(){
var theVal = $('#Status1').val();
switch(theVal){
    case'0':
        $('#Runs1').prop('disabled', true);
        break;
    case'1':
        $('#Runs1').prop('disabled', false);
        break;
    case'2':
        $('#Runs1').prop('disabled', true);
        break;
    }
});
</script>
<tr>
 <td align='center'>
   <select id='Status1'><option value='0'>Not Playing</option><option value='1'>Playing</option><option value='2'>Out</option></select></td>
 <td align='center'>
   <input style='font-weight:bold; background:#FFFFFF; text-align:right; color:#000000;' disabled='disabled' name='Runs1' type='text' id='Runs1' size='5' maxlength='5' value='' />    
 </td>
</tr>
</form>
</table>
于 2013-03-05T10:30:35.823 回答
1

用Rest替换<?php和一切都很好。<script>?></script>.

你在php标签里写的代码是Jquery代码，所以应该在script标签下。

于 2013-03-05T10:28:12.957 回答
1

在你的加载jquery<head>并在那里添加javascript..不在里面<?php（php代码）

<head>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="text/javascript">
$('#Status1').change(function(){
  var theVal = $('#Status1').val();
  switch(theVal){
  case'0':
    $('#Runs1').prop('disabled', true);
    break;
  case'1':
    $('#Runs1').prop('disabled', false);
    break;
  case'2':
    $('#Runs1').prop('disabled', true);
    break;
 }
});
</script>
<body>
....//rest of your code
于 2013-03-05T10:32:20.980 回答
1

您没有包含 jquery 文件并使用标签而不是 javascript 代码

<body>
<table width="500" border="1">
<form style="text-align:center" id="form1" name="form1" method="post" action="">
<tr>
  <th width="32" nowrap="nowrap">Status</th>
  <th width="32" nowrap="nowrap">Runs</th>
  <th width="16" nowrap="nowrap">6</th>
</tr>
<script src="../jquery.js"></script>
<script type="text/javascript">
$('#Status1').change(function(){
var theVal = $('#Status1').val();
switch(theVal){
 case'0':
    $('#Runs1').prop('disabled', true);
    break;
 case'1':
    $('#Runs1').prop('disabled', false);
    break;
case'2':
    $('#Runs1').prop('disabled', true);
    break;
   }
});
</script>
<tr>
 <td align='center'>
 <select id='Status1'><option value='0'>Not Playing</option><option value='1'>Playing</option><option value='2'>Out</option></select></td>
<td align='center'>
  <input style='font-weight:bold; background:#FFFFFF; text-align:right; color:#000000;' disabled='disabled' name='Runs1' type='text' id='Runs1' size='5' maxlength='5' value='' />    
</td>
</tr>
</form>
</table>
</body>
于 2013-03-05T10:33:43.860 回答
1

试试看：

HTML

<body>
    <table width="500" border="1">
      <form style="text-align:center" id="form1" name="form1" method="post" action="">
        <tr>
            <th width="32" nowrap="nowrap">Status</th>
            <th width="32" nowrap="nowrap">Runs</th>
            <th width="16" nowrap="nowrap">6</th>
        </tr>

        <tr>
            <td align='center'>
            <select id='Status1'><option value='0'>Not Playing</option><option value='1'>Playing</option><option value='2'>Out</option></select></td>
            <td align='center'>
            <input style='font-weight:bold; background:#FFFFFF; text-align:right; color:#000000;' disabled='disabled' name='Runs1' type='text' id='Runs1' size='5' maxlength='5' value='' />    
            </td>
        </tr>
    </form>
    </table>
</body>

脚本

<script type="text/javascript">
$(document).ready(function(){
    $('#Status1').change(function(){
        var theVal = $('#Status1').val();
        switch(theVal){
            case'0':
                $('#Runs1').prop('disabled', true);
                break;
            case'1':
                $('#Runs1').prop('disabled', false);
                break;
            case'2':
                $('#Runs1').prop('disabled', true);
                break;
        }
    });
});
</script>

但首先检查您是否jquery library file在head section.

于 2013-03-05T10:46:21.917 回答
0

朋友们，在你们的帮助下，这是我的问题的解决方案，谢谢。

<html>
<head>
<script type="text/javascript" src="../jquery.min.js"></script>
<SCRIPT LANGUAGE="JavaScript">
$(document).ready(function(){
    $('#Status1').change(function(){
        var theVal = $('#Status1').val();
        switch(theVal){
            case'0':
                $('#Runs1').prop('disabled', true);
                break;
            case'1':
                $('#Runs1').prop('disabled', false);
                break;
            case'2':
                $('#Runs1').prop('disabled', true);
                break;
        }
    });
});
</script>
</head>
<body>
    <table width="500" border="1">
      <form style="text-align:center" id="form1" name="form1" method="post" action="">
        <tr>
            <th width="32" nowrap="nowrap">Status</th>
            <th width="32" nowrap="nowrap">Runs</th>
            <th width="16" nowrap="nowrap">6</th>
        </tr>
        <tr>
            <td align='center'>
            <select id='Status1'><option value='0'>Not Playing</option><option value='1'>Playing</option><option value='2'>Out</option></select></td>
            <td align='center'>
            <input style='font-weight:bold; background:#FFFFFF; text-align:right; color:#000000;' disabled='disabled' name='Runs1' type='text' id='Runs1' size='5' maxlength='5' value='' />    
            </td>
        </tr>
    </form>
    </table>
</body>
</html>
于 2013-03-05T11:18:21.083 回答