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How do I disable/enable a form element?
jQuery Interview Questions and Answers
(Continued from previous question...)
How do I disable/enable a form element?
There are two ways to disable/enable form elements.
Set the 'disabled' attribute to true or false:
// Disable #x
$('#x').attr('disabled', true);
// Enable #x
$('#x').attr('disabled', false);
Add or remove the 'disabled' attribute:
// Disable #x
$("#x").attr('disabled', 'disabled');
// Enable #x
$("#x").removeAttr('disabled');
You can try an example of enabling/disabling with the following demo:
and here's the source code to the demo:
<select id="x" style="width:200px;">
<option>one</option>
<option>two</option>
</select>
<input type="button" value="Disable" onclick="$('#x').attr('disabled','disabled')"/>
<input type="button" value="Enable" onclick="$('#x').removeAttr('disabled')"/>
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