javascript - bootstrap accordion - don't collapse if clicking on open panel - Stack Overflow

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I have set up bootstrap to hide currently open panels when opening a new panel using:

$('.collapse').on('show.bs.collapse', function () {
   $('.in').collapse('hide');
});

I would like to extend this so that nothing happens if you click on a currently open panel, i.e. the open panel should stay open when clicking on it. It should only collapse when clicking on other collapsed panels.

I tried it like this, but it doesn't work:

$('.collapse').on('show.bs.collapse', function () {
  $('.in').not(this).collapse('hide');
});

Is this possible somehow?

JSFiddle

I have set up bootstrap to hide currently open panels when opening a new panel using:

$('.collapse').on('show.bs.collapse', function () {
   $('.in').collapse('hide');
});

I would like to extend this so that nothing happens if you click on a currently open panel, i.e. the open panel should stay open when clicking on it. It should only collapse when clicking on other collapsed panels.

I tried it like this, but it doesn't work:

$('.collapse').on('show.bs.collapse', function () {
  $('.in').not(this).collapse('hide');
});

Is this possible somehow?

JSFiddle

• javascript
• html
• twitter-bootstrap

Share Improve this question Follow edited Nov 19, 2022 at 13:18 dan1st 16.6k1717 gold badges103103 silver badges134134 bronze badges asked Apr 24, 2017 at 16:03 iamfredrikiamfredrik 34011 gold badge66 silver badges1515 bronze badges 2

• Can you post a plete working example? HTML too. – Carol Skelly Commented Apr 24, 2017 at 16:15
• I edited my initial post and added a link to a working example on JSFiddle. – iamfredrik Commented Apr 24, 2017 at 18:13

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2 Answers 2

Sorted by: Reset to default 2

Bootstrap adds the class 'in' to open panels, you can use that to detect weather the panel is already open, if so then you can skip the collapsing by invoking a event.stopPropagation() you can read more about stopPropagation here.

$('.panel-title > a[data-toggle="collapse"]').click(function(e){
  target = $(this).attr('href')
  if ($(target).hasClass('in')) {
    e.preventDefault(); // to stop the page jump to the anchor target.
    e.stopPropagation()
  }
})

jsfiddle

According to @Sammy answer - for the Bootstrap 4.x you have to change

    if ($(target).hasClass('in'))

to

    if ($(target).hasClass('show'))

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