限制Jquery select2最大选定选项

I have refered to this docs provided by select2 jquery plugin. http://ivaynberg.github.io/select2/

我已经提到了select2 jquery插件提供的这个文档。 http://ivaynberg.github.io/select2/

But when I use this code to limit the number of options a user can select at a time:

但是，当我使用此代码来限制用户一次可以选择的选项数量时：

$(document).ready(function(){
    $(".select2").select2({ maximumSelectionSize: 2 });
    });

And here is the html of select tag:

以下是select标签的html：

  <select id="store-name" name="state[]" class="select2-select-00 span6" multiple size="5"
            data-placeholder="Store" style="height:25px;">


        <?php foreach ($this->Store->get_all_stores_names() as $row) {

        //print_r($row);
          echo '<option value="' . $row->name . '"> ' . $row->name . '</option>';
        }
        ?>

    </select>

When i try to limit it , I get this error in console, "Uncaught TypeError: Object [object Object] has no method 'select2' ". Why? I mean the select2 works fine which means that it's js files are being loaded,then why I am unable to limit it? Thanks

当我试图限制它时，我在控制台中收到此错误，“未捕获TypeError：对象[对象对象]没有方法'select2'”。为什么？我的意思是select2工作正常，这意味着它正在加载js文件，那么为什么我无法限制它？谢谢

1 个解决方案

#1

Use maximumSelectionLength like so:

像这样使用maximumSelectionLength：

$("#selectQQQ").select2({
    maximumSelectionLength: 3
});