如何使用 jQuery 向 <select> 添加 disabled=disabled 属性？
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How do i add disabled=disabled attribute to <select> using jQuery?
提问by Ibrahim Azhar Armar
I have a html field.
我有一个 html 字段。
<select name="select-states" disabled="disabled"><option value="">Choose State »</option></select>
initially the field is disabled, i want to enable or disable it based on events. to enable it i am using the following jQuery which works fine.
最初该字段被禁用，我想根据事件启用或禁用它。为了启用它，我正在使用以下 jQuery，它工作正常。
$('select[name="select-states"]').removeAttr('disabled');
I want to re-enable it using jQuery, for which i tried using this which does not work.
我想使用 jQuery 重新启用它，为此我尝试使用它不起作用。
$('select[name="select-states"]').attr('disabled');
What am i missing? which is the correct syntax for this?
我错过了什么？哪个是正确的语法？
thank you
谢谢你
回答by Jon Gauthier
In your code, you provide only one parameter to .attr(). This indicates that the function should just return the value for the disabledattribute of that element.
在您的代码中，您只向.attr(). 这表明该函数应该只返回该disabled元素的属性值。
To set the disabledattribute, provide the attribute name (first parameter) along with a value (second parameter):
要设置disabled属性，请提供属性名称（第一个参数）和值（第二个参数）：
$('select[name="select-states"]').attr('disabled', 'disabled');
