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写错了。 如果我这样做,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>
答案 0 :(得分:2)
启用/禁用#Run1输入框的代码嵌套在PHP标记(服务器端)之间,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>
答案 1 :(得分:1)
将<?php
替换为<script>
,将?>
替换为</script>.
让所有事情都可以。
你在php标签中编写的代码是一个Jquery代码,所以它应该在脚本标签下。
答案 2 :(得分:1)
在你的<head>
中加载jquery并在那里添加javascript ..不在<?php
内(php code)
<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
答案 3 :(得分:1)
您尚未包含jquery文件和已使用的标记,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>
答案 4 :(得分:1)
尝试如下:
<强> HTML 强>
<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>
<强> SCRIPT 强>
<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>
但首先请检查您是否在jquery library file
中添加了head section
。
答案 5 :(得分:0)
朋友这是我的问题的解决方案,在你们的帮助下感谢。
<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>