我喜欢根据选择中的选项数量动态地执行此操作;隐藏搜索选择与10或更少的结果，我做:

$fewResults = $("select>option:nth-child(11)").closest("select");
$fewResults.select2();
$('select').not($fewResults).select2({ minimumResultsForSearch : -1 });

查看这个线程https://github.com/ivaynberg/select2/issues/489，您可以通过将minimumResultsForSearch设置为负值来隐藏搜索框。

$('select').select2({
    minimumResultsForSearch: -1
});

$(document).ready(function() { $(".select2").select2(); }); <link href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/css/select2.min.css" rel="stylesheet" /> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.3/js/select2.min.js"></script> <label>without search box</label> <select class="select2" data-width="100%" data-minimum-results-for-search="Infinity"> <option>one</option> <option>two</option> </select> <label>with search box</label> <select class="select2" data-width="100%"> <option>one</option> <option>two</option> </select>

如果你有多个属性在你的选择，这个肮脏的hack工作:

var multipleSelect = $('select[name="list_type"]');
multipleSelect.select2();
multipleSelect.parent().find('.select2-search--inline').remove();
multipleSelect.on('change', function(){
    multipleSelect.parent().find('.select2-search--inline').remove();
});

查看文档https://select2.org/searching#limiting-display-of-the-search-box-to-large-result-sets

你可以为minimumResultsForSearch选项设置无穷大或-1

解决方案1

裁判:https://select2.org/searching # limiting-display-of-the-search-box-to-large-result-sets

$('select').select2({
    minimumResultsForSearch: -1
});

解决方案2

裁判:https://select2.org/searching # hiding-the-search-box

$('select').select2({
   minimumResultsForSearch: Infinity
});

如果选择显示结果，必须使用这个:

$('#yourSelect2ControlId').select2("close").parent().hide();

它关闭搜索结果框，然后设置控件不可见