javascript - Html duplicated ID

Question

My control is built dynamically accordingly to user input, there are n textboxes whose IDs are dynamic too.

However, I did not foresee that this HTML would be reused elsewhere within the same html page.

The problem I'm facing now are the duplicated IDs, which are causing my jQuery functions to not work well.

I do understand that IDs should be unique, however, can I avoid the issue by using the outermost <div> with different IDs?

Any experts out there can give me some good advice?

P.S. I'm looking for an effective solution, because if I need to change the ID for each element, it would require a lot of work in my jQuery.

Please help. Thanks!

<div id="Container1">
  <div id="Control">
    <input type="text" id="TextBox1" />
    <input type="text" id="TextBox2" />
  </div>
</div>

<div id="Container2">
  <div id="Control">
    <input type="text" id="TextBox1" />
    <input type="text" id="TextBox2" />
  </div>
</div>

Answer 1

You absolutely should not have duplicate IDs. It may work*, but it is semantically incorrect and you should not do it

You should restructure your jQuery, however much that may stink. The best option would be to use a class, perhaps using the specific id of the parent to specify which one you want

Another less attractive but viable way would be to add a number or something to the end of the ID to make it unique then use jQuery to detect any elements with a specific part of an ID

* - As Arun describes jQuery will accept the selector, but it is NOT favorable because it is incorrect