jquery select option not working (by name)

Question

I have the following HTML which defines my selector:

<select name="zoom_cat[]" style="margin-left:15px;">
  <option value="-1" selected="selected">All</option>
  <option value="0">News</option>
  <option value="1">Publications</option>
  <option value="2">Services</option>
  <option value="3">Industries</option>
</select>

And I am trying to set the selected option to All (value -1). For some reason this jquery code is having no effect (same option remains selected):

$('input[name="zoom_cat[]"] option[value="-1"]').attr('selected', 'selected');

see http://stackoverflow.com/questions/1280499/jquery-set-select-index/ duplicate — Collin Price, Apr 16 '12 at 21:53
You're trying to set the `select` element (despite using `input` in the selector) to the value of the `option` that's already selected, and you're surprised that it doesn't change anything? — David Thomas, Apr 16 '12 at 21:53

score 4 · Accepted Answer · answered Apr 16 '12 at 21:52

4

$('select[name="zoom_cat[]"] option[value="-1"]').attr('selected', 'selected');

instead of input

answered Apr 16 '12 at 21:52

Matt Mombrea

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`selected` is a property (`prop()`), not an attribute. [JS Fiddle](http://jsfiddle.net/davidThomas/L7BkN/). – David Thomas Apr 16 '12 at 21:55
@DavidThomas, prop and attr both work, if you use them right. It's not wrong to use attr here. Changing the selected attribute also changes the property automatically and vise versa. `.attr('selected'): selected` `.prop('selected'): true` – Geekfish Apr 16 '12 at 22:03

score 0 · Answer 2 · answered Apr 16 '12 at 21:56

Use select instead of input

$('select[name="zoom_cat[]"] option[value="-1"]').attr('selected', 'selected');

working sample : http://jsfiddle.net/Est9D/4/

You can do it in more simple way

  $('select[name="zoom_cat[]"]').val("-1")

Sample : http://jsfiddle.net/Est9D/7/

score 0 · Answer 3 · answered Apr 16 '12 at 21:58

0

As Matt above said, you should use select in your selector, not input, they are different elements. Also setting the selected attribute will not work on <=IE7, so ideally you should do $('select[name="zoom_cat[]"]').val('-1');

answered Apr 16 '12 at 21:58

Geekfish

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score 0 · Answer 4 · edited Jun 04 '20 at 15:59

0

You need to escape special characters in your selector.

See: http://api.jquery.com/category/selectors/

So try this instead:

$('input[name="zoom_cat\\\\[\\\\]"] option[value="-1"]').attr('selected', 'selected');

edited Jun 04 '20 at 15:59

David

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answered Apr 16 '12 at 21:58

Andrew Thomson

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You must escape square brackets in a jquery selector for it to work correctly in IE7. – Andrew Thomson Apr 16 '12 at 22:30

score 0 · Answer 5 · edited Jun 04 '20 at 15:58

0

You can do this: (not attr as suggested by someone but prop)

$('select[name="zoom_cat[]"] option[value="-1"]').prop('selected', 'selected');

edited Jun 04 '20 at 15:58

David

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answered May 19 '17 at 16:58

michael

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jquery select option not working (by name)

5 Answers5