多个元素上的一个 jQuery 更改事件

2022-01-16 00:00:00 asp-classic jquery html

我有 3 个文本框，它们都具有相同的 id，我通过将其放入控制器数组中处理到 ASP 中

I have 3 textboxes, all with the same id's that I process into ASP by bringing it into a controller array

我有一个链接，可以在前 3 个下方添加无限数量的文本框.

I have a link that adds an unlimited number of textboxes below the first 3.

我目前的变更声明:

$('input.#invent').change(function () {

适用于第一个文本框上的更改事件，但是具有相同信息的其他人在更改时不会触发它

works fine for the change event on the first textbox, but the others with the same information do not fire it when changed

当任何 3 个以上的文本框发生更改时，触发更改事件的最佳策略是什么??

What is the best strategy for getting the change event to fire when any of the 3+ textboxes change??

推荐答案

将 ID 为 #invent 的所有三个元素改为一个类(ID 的必须是唯一的)，否则它只适用于第一个元素，比如什么您的情况目前正在发生.

Change all three elements with the #invent ID to a class instead (ID's must to be unique), or it's only going to work for the first element, like what's currently happening in your case.

然后，您可以定位所有具有 .invent 类的元素:

Then, you can target all of the elements that have the .invent class:

$('input.invent').change(function () { // Here, $(this) refers to the specific element of the .invent class which 'changed' }):

详细了解 ID 和类选择器之间的区别这里.

Read more about the difference between ID and Class selectors here.

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