如何在Jquery中的Select2元素上檢測單擊事件處理程序？

Question

我試圖檢測單擊的元素是否為select2並根據需要執行其他操作，而不僅僅是打開下拉列表。 但是它不成功，因為我單擊了select2元素，但沒有任何反應。

 $(document).ready(function() { $('select').select2(); $('body').on('click', function(e) { if ($(this).data('select2')) { console.log('select2 element was just clicked'); } else { console.log('you are not clicking on select2'); } }); }) 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/select2/3.5.4/select2.js"></script> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/select2/3.5.4/select2.css" /> <select style="width:300px" id="select"> <optgroup label="Alaskan/Hawaiian Time Zone"> <option value="AK">Alaska</option> <option value="HI">Hawaii</option> </optgroup> <optgroup label="Pacific Time Zone"> <option value="CA">California</option> <option value="NV">Nevada</option> <option value="OR">Oregon</option> <option value="WA">Washington</option> </optgroup> <optgroup label="Mountain Time Zone"> <option value="AZ">Arizona</option> <option value="CO">Colorado</option> <option value="ID">Idaho</option> <option value="MT">Montana</option> <option value="NE">Nebraska</option> <option value="NM">New Mexico</option> <option value="ND">North Dakota</option> <option value="UT">Utah</option> <option value="WY">Wyoming</option> </optgroup> <optgroup label="Central Time Zone"> <option value="AL">Alabama</option> <option value="AR">Arkansas</option> <option value="IL">Illinois</option> <option value="IA">Iowa</option> <option value="KS">Kansas</option> <option value="KY">Kentucky</option> <option value="LA">Louisiana</option> <option value="MN">Minnesota</option> <option value="MS">Mississippi</option> <option value="MO">Missouri</option> <option value="OK">Oklahoma</option> <option value="SD">South Dakota</option> <option value="TX">Texas</option> <option value="TN">Tennessee</option> <option value="WI">Wisconsin</option> </optgroup> <optgroup label="Eastern Time Zone"> <option value="CT">Connecticut</option> <option value="DE">Delaware</option> <option value="FL">Florida</option> <option value="GA">Georgia</option> <option value="IN">Indiana</option> <option value="ME">Maine</option> <option value="MD">Maryland</option> <option value="MA">Massachusetts</option> <option value="MI">Michigan</option> <option value="NH">New Hampshire</option> <option value="NJ">New Jersey</option> <option value="NY">New York</option> <option value="NC">North Carolina</option> <option value="OH">Ohio</option> <option value="PA">Pennsylvania</option> <option value="RI">Rhode Island</option> <option value="SC">South Carolina</option> <option value="VT">Vermont</option> <option value="VA">Virginia</option> <option value="WV">West Virginia</option> </optgroup> </select> 

我不知道為什么select2沒有收到點擊事件。 是否有任何解決方法存檔，因為單擊select2時我需要執行更多操作？ 非常感謝。

Answer 1

這樣的事情怎么樣？ 這是另一個示例： https: //jsfiddle.net/f8q2by55/ http://jsfiddle.net/6jaodjzq/

如此答案所述： 將點擊事件附加到.select2-result中的元素

由於Select2 lib阻止彈出菜單上的任何單擊事件，因此您無法將事件直接綁定到.info。 但是您可以重新定義onSelect方法並將所需的任何代碼放置在此處。

 $(document).ready(function() { let selector = $('#select').select2() selector.onSelect = (function(fn) { return function(data, options) { console.log('selected'); } })(selector.onSelect); }) 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/select2/3.5.4/select2.js"></script> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/select2/3.5.4/select2.css" /> <select style="width:300px" id="select"> <optgroup label="Alaskan/Hawaiian Time Zone"> <option value="AK">Alaska</option> <option value="HI">Hawaii</option> </optgroup> <optgroup label="Pacific Time Zone"> <option value="CA">California</option> <option value="NV">Nevada</option> <option value="OR">Oregon</option> <option value="WA">Washington</option> </optgroup> <optgroup label="Mountain Time Zone"> <option value="AZ">Arizona</option> <option value="CO">Colorado</option> <option value="ID">Idaho</option> <option value="MT">Montana</option> <option value="NE">Nebraska</option> <option value="NM">New Mexico</option> <option value="ND">North Dakota</option> <option value="UT">Utah</option> <option value="WY">Wyoming</option> </optgroup> <optgroup label="Central Time Zone"> <option value="AL">Alabama</option> <option value="AR">Arkansas</option> <option value="IL">Illinois</option> <option value="IA">Iowa</option> <option value="KS">Kansas</option> <option value="KY">Kentucky</option> <option value="LA">Louisiana</option> <option value="MN">Minnesota</option> <option value="MS">Mississippi</option> <option value="MO">Missouri</option> <option value="OK">Oklahoma</option> <option value="SD">South Dakota</option> <option value="TX">Texas</option> <option value="TN">Tennessee</option> <option value="WI">Wisconsin</option> </optgroup> <optgroup label="Eastern Time Zone"> <option value="CT">Connecticut</option> <option value="DE">Delaware</option> <option value="FL">Florida</option> <option value="GA">Georgia</option> <option value="IN">Indiana</option> <option value="ME">Maine</option> <option value="MD">Maryland</option> <option value="MA">Massachusetts</option> <option value="MI">Michigan</option> <option value="NH">New Hampshire</option> <option value="NJ">New Jersey</option> <option value="NY">New York</option> <option value="NC">North Carolina</option> <option value="OH">Ohio</option> <option value="PA">Pennsylvania</option> <option value="RI">Rhode Island</option> <option value="SC">South Carolina</option> <option value="VT">Vermont</option> <option value="VA">Virginia</option> <option value="WV">West Virginia</option> </optgroup> </select>