HTML DOM disabled Property
 Complete Select Object Reference
Definition and Usage
The disabled property sets or returns whether or not a dropdown list should be
disabled.
Syntax
selectObject.disabled=true|false
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Example
The following example disables and enables a dropdown list:
<html>
<head>
<script type="text/javascript">
function disable()
{
document.getElementById("mySelect").disabled=true
}
function enable()
{
document.getElementById("mySelect").disabled=false
}
</script>
</head>
<body>
<form>
<select id="mySelect">
<option>Apple</option>
<option>Pear</option>
<option>Banana</option>
<option>Orange</option>
</select>
<br /><br />
<input type="button" onclick="disable()" value="Disable list">
<input type="button" onclick="enable()" value="Enable list">
</form>
</body>
</html>
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Try-It-Yourself Demos
Disable and enable a dropdown list
Complete Select Object Reference
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