如何将禁用的元素值发送到服务器？

Question

I have the next checkbox:

<input type="checkbox" value="true" name="permanentEmployee" checked="" id="permanentEmployee" disabled="">

I've set the attribute disabled to true and submitted the form

$("#permanentEmployee").prop('disabled', true);`

On server side, if I do:

request.getParameter("permanentEmployee")

I get the value as Null , though I get the the correct value (ie True ) if I don't disable the checkbox. Why am I not getting the disabled checkbox value as True even if it is checked?

Answer 1

Disabled form elements are not sent via form submit. You can consider using read-only instead

One idea would be

$('#permanentEmployee').click(function(){
        return false; // even if the user clicks on it it will not change
});

$('#permanentEmployee').prop('checked', true);

http://jsfiddle.net/Spokey/M3LfA/1/

Answer 2

在提交表单（提交提交侦听器）之前，您可以启用该复选框。

Answer 3

Disabled check boxes (and probably other form elements) are not sent to the server.

There are a couple of solutions here: How to ensure a <select> form field is submitted when it is disabled?