如何从禁用的< input>获取表单值？元件

问题描述

表单的HTML标准似乎是这样的，禁用的输入元素不会影响表单名称/值集合。

有没有办法绕过这个？我需要能够打开和关闭禁用，但仍然返回提交表单时的值。

我意识到我可以使用JavaScript来复制值提交表单之前隐藏的输入，但我不想。有没有更清晰的方式？

我使用的是ASP.NET，并不重要。

解决方案您应该使用 readOnly 标志而不是 disabled 。

 < input type =text只读字段不能由用户编辑，但仍然会以表单提交。 value =blahreadonly =true/> 
  

The HTML standard for forms appears to be such that disabled input elements do not contribute to the form name/value collection.

Is there ANY way to get around this? I need to be able to toggle disable on and off but still return whatever the value is when the form is submitted.

I realize that I can use JavaScript to copy the value to a hidden input before the form is submitted, but I would prefer not to. Is there a cleaner way?

I'm using ASP.NET, not that that matters.

解决方案

You should use the readOnly flag rather than disabled. Read-only fields cannot be edited by the user, but are still submitted with the form.

<input type="text" value="blah" readonly="true"/>

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