如何以编程方式更改select2值 [英] how to change select2 value programmatically

问题描述

我在引导程序模式下有一个select2框，我想更改select2框的值，但是它不起作用.

I have a select2 box in bootstrap modal, I want to change the value of the select2 box but it didn't work.

我尝试了以前的帖子和结果中的每个解决方案，但没有一个能奏效.

I tried every single solution in previous posts and results but none of them got it work.

我使用了 select2 4.0.2 ，我进行了测试:

I use select2 4.0.2, I tested:

$('#select_id').val('val').trigger('change.select2');

$('#select_id').val('val').trigger('change');

$('#select_id').val('val').change()

它可以工作一到两次，然后(随机)停止工作

It works one or two times then it stops working (randomly)

仅当我将select2更改回3.x.x时，它才能正常工作

It works fine only when I change the select2 back to 3.x.x

推荐答案

$('#select_id').val('val').trigger('change');

是正确的方法，请参见此处

is the right way, see here

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