html隐藏字段的更改事件 [英] change event of html hidden field

问题描述

我想使用jquery检查html隐藏字段的更改，我尝试这样做，但是change事件没有起作用.

I want to check the change of html hidden field using jquery and i tried for this but the change event did not worked.

有人知道如何处理吗?

Somebody has and idea how to handle this?

推荐答案

通过以编程方式更改的值时，不会触发change事件，如果这样做会在许多情况下导致无限循环情况.

The change event doesn't fire when the value is programmatically changed, if it did it would cause infinite loops in many situations.

如果您需要触发该事件，请在使用 .change() ，像这样:

If you need the event to fire, then trigger it when changing the value yourself using .change(), like this:

$("#hiddenId").val("new value").change();

.change() 是 ，或者，如果您不由于某种原因希望该change事件冒泡，请使用 .triggerHandler("change") .

.change() is a shortcut for .trigger("change") or, if you don't want that change event to bubble for some reason, then use .triggerHandler("change").

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