问题描述
我有一个选择列表。
当用户更改选择列表选项时,我希望显示引导模态,并且仅当选中模态的确认按钮时,才更改选择列表。
我只是似乎无法正确获取代码,也找不到Google答案。
这是我的选择列表代码:
<select id="id_language_code" name="language_code" required="">
<option value="en" selected="selected">English (US)</option>
<option value="en-ca">English (Canada) - English (Canada)?</option>
<option value="en-gb">English (UK) - English (UK)?</option>
<option value="es">Spanish (Spain) - espa?ol (Espa?a)?</option>
<option value="es-419">Spanish (Latin America) - espa?ol (Latinoamérica)?</option>
<option value="fr">French (France) - fran?ais (France)?</option>
<option value="fr-ca">French (Canada) - fran?ais (Canada)?</option>
<option value="fr-ch">French (Switzerland) - fran?ais (Suisse)?</option>
</select>
这是我的模态代码:
<div id="language_change_modal" class="modal rounded modal-confirm-medium-width fade" style="height: 230px;" role="dialog" aria-labelledby="cancelConfirmLabel" aria-hidden="true">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-hidden="true"><icon class="glyphicon glyphicon-remove"></icon></button><h4 class="modal-title" id="cancelConfirmLabel">{% trans "Confirm Change Language" %}</h4>
</div>
<div class="modal-body-confirm">{% trans "This will reset all your details." %} {% trans "Are you sure you want to change languages?" %}</div>
<div class="modal-footer">
<a class="btn rounded btn-default" data-dismiss="modal" aria-hidden="true"><i class="fa fa-times-circle icon_padding"></i>{% trans "No" %}</a>
<span class="spacer"></span>
<a class="btn rounded btn-primary" id="cancelConfirmOK"><i class="fa fa-check-circle icon_padding"></i>{% trans "Yes" %}</a>
</div>
</div>
这是我的js / jq触发代码:
$(document).ready(function() {
....
$('#id_language_code').on('change', function() {
$('#language_change_modal').modal('show'); // user confirm language change.
});
1楼
Andrew Lohr
1
已采纳
2019-02-12 21:46:49
您需要做的就是在模式内部的“是”和“否”按钮上添加一个单击事件侦听器,并保存以前的选择选项。
我对模态html进行了一些更新,因为模态看起来不太好。 我也将data-dismiss属性添加到“是”按钮。
当用户选择“是”时,您一切都很好,选择将更改,我们将此新选择保存在变量$preSelection
。
当用户选择“否”时,我们会将选择重置为上一个值。 通常这是这样做的方法,我还没有看到其他任何方法来专门防止 select onchange。
$(document).ready(function() { let $prevSelection = $("#id_language_code option:selected"); $('#id_language_code').on('change', function() { $('#language_change_modal').modal('show'); // user confirm language change. }); $('#yesButton').on('click', function() { $prevSelection = $("#id_language_code option:selected"); console.log("Yes was clicked. Allowing selection change and saving new selection"); }); $('#cancelButton').on('click', function() { console.log("No was clicked. Resetting select to previous value"); $prevSelection.prop("selected", true); }); });
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script> <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous"> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script> <select id="id_language_code" name="language_code" required=""> <option value="en" selected="selected">English (US)</option> <option value="en-ca">English (Canada) - English (Canada)?</option> <option value="en-gb">English (UK) - English (UK)?</option> <option value="es">Spanish (Spain) - espa?ol (Espa?a)?</option> <option value="es-419">Spanish (Latin America) - espa?ol (Latinoamérica)?</option> <option value="fr">French (France) - fran?ais (France)?</option> <option value="fr-ca">French (Canada) - fran?ais (Canada)?</option> <option value="fr-ch">French (Switzerland) - fran?ais (Suisse)?</option> </select> <div id="language_change_modal" class="modal" tabindex="-1" role="dialog"> <div class="modal-dialog" role="document"> <div class="modal-content"> <div class="modal-header"> <h5 class="modal-title">Confirm Change</h5> <button type="button" class="close" data-dismiss="modal" aria-label="Close"> <span aria-hidden="true">×</span> </button> </div> <div class="modal-body"> <p>This will reset all your details. Are you sure you want to change languages? </p> </div> <div class="modal-footer"> <a class="btn rounded btn-default" id="cancelButton" data-dismiss="modal" aria-hidden="true"><i class="fa fa-times-circle icon_padding"></i>No</a> <span class="spacer"></span> <a class="btn rounded btn-primary" id="yesButton" data-dismiss="modal"><i class="fa fa-check-circle icon_padding"></i>Yes</a> </div> </div> </div> </div>
2楼
Grizzly
0
2019-02-12 22:43:32
由于您已经在引用Bootstrap,因此强烈建议您使用 。 与必须写出整个模态框相比,它易于使用并且更加干净。此外,它还附带了回调(即开即用)来为您提供帮助。
我为您创建了一个 ,以显示我的意思。 我没有更改选择列表,但是基于单击“是”按钮(这是根据您的评论要查找的内容)显示警告。 您可以编辑和自定义有关bootbox的某些内容以适合您的需求。
这是我的示例代码。
HTML
<select id="My-Select">
<option value="0">Select Option</option>
<option value="1">Option One</option>
<option value="2">Option Two</option>
<option value="3">Option Three</option>
</select>
jQuery的
$("#My-Select").change(function(){
// use bootbox for easy implementation
bootbox.confirm({
message: "Are you sure you want to do this?",
buttons: {
confirm: {
label: 'Yes',
className: 'btn-success'
},
cancel: {
label: 'No',
className: 'btn-danger'
}
},
callback: function (result) { // result is 'true' if the 'yes' button is clicked
if(result)
alert("Yes, I want to change the select list.");
// Here is where you would reset the select list
else
alert("No, I do not want to change the select list.");
// Here is where you do not reset the select list
}
});
});
让我知道这是否有帮助!