如何触发隐藏字段的onChange事件？

Question

我想为隐藏字段触发onChange事件，我读过的大多数论坛都表明onChange对隐藏字段不起作用，那么有没有办法解决这个问题，比如Plan-B？

Answer 1

In jQuery, you could trigger a custom event:

$("#hidden_input_id").trigger("special-change");

And you can listen with:

$("#hidden_input_id").on("special-change", function () {

});

DEMO: http://jsfiddle.net/byKak/

Reference:

• .trigger() : http://api.jquery.com/trigger/