模式內部的按鈕不適用於Bootstrap 4，但適用於Bootstrap 3

Question

我在laravel項目中工作，我可以使用按鈕來顯示模式，並且在該模式中有一個刪除按鈕，並且正在使用botstrap 3進行工作，但是在使用bootrsap 4時無法工作。

這是我的html代碼，這些CDN正在運行：

   <!-- jQuery -->
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
 <script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.0.1/js/bootstrap.min.js"></script>

    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">

當我使用這些CDN時，我的模態中的刪除按鈕不再起作用：

<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css">

<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>

<!-- Popper JS -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script>

<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script>

我的模態：

 <div id="deleteModal" class="modal fade" role="dialog">
        <div class="modal-dialog">
            <div class="modal-cliente">
                <div class="modal-header">
                    <button type="button" class="close" data-dismiss="modal">×</button>
                    <h4 class="modal-orden_de_compra"></h4>
                </div>
                <div class="modal-body">
                    <h3 class="text-center">¿Estas seguro de que quieres eliminar este pedido?</h3>
                    <br />
                    <form class="form-horizontal" role="form">
                        <div class="form-group">
                            <label class="control-label col-sm-2" for="id">id:</label>
                            <div class="col-sm-10">
                                <input type="text" class="form-control" id="id_delete" disabled>
                            </div>
                        </div>
                        <div class="form-group">
                            <label class="control-label col-sm-2" for="orden_de_compra">Orden de compra:</label>
                            <div class="col-sm-10">
                                <input type="name" class="form-control" id="orden_de_compra_delete" disabled>
                            </div>
                        </div>
                    </form>
                    <div class="modal-footer">
                        <button type="button" class="btn btn-danger delete" data-dismiss="modal">
                            <span id="" class='glyphicon glyphicon-trash'></span> Delete
                        </button>this delete button doesnt work with Bootstrap 4 but is working with bootstrap 3
                        <button type="button" class="btn btn-warning" data-dismiss="modal">
                            <span class='glyphicon glyphicon-remove'></span> Close
                        </button>
                    </div>
                </div>
            </div>
        </div>
    </div>

我的js：

    <script type="text/javascript">


   // delete a post
        $(document).on('click', '.delete-modal', function() { //this function works with bootstrap 4
            $('.modal-orden_de_compra').text('Delete');
            $('#id_delete').val($(this).data('id'));
            $('#orden_de_compra_delete').val($(this).data('orden_de_compra'));
            $('#deleteModal').modal('show');
            id = $('#id_delete').val();
            orden_de_compra = $('#orden_de_compra_delete').val();
            alert(id); 
        });
        $('.modal-footer').on('click', '.delete', function() { //this function doesnt work with bootstrap 4
            $.ajax({
                type: 'DELETE',
                url: 'posts/' + id,
                data: {
                    '_token': $('input[name=_token]').val(),
                },
                success: function(data) {
                    toastr.success('Pedido eliminado exitosamente!', 'Notificación', {timeOut: 5000});
                    $('.item' + data['pedido_id']).remove();
                    alert('.item' + data['pedido_id']);
                }
            });
        });

</script

Answer 1

好吧...我將同時摘錄兩個片段，以幫助您了解兩者之間的區別。

BS3：

 $('.modal-footer').on('click', '.delete', function() { console.log("I'm here."); }); 

 <link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet"/> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.0.1/js/bootstrap.min.js"></script> <button type="button" data-toggle="modal" data-target="#deleteModal">Open Modal</button> <div id="deleteModal" class="modal fade" role="dialog"> <div class="modal-dialog"> <div class="modal-cliente"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal">×</button> <h4 class="modal-orden_de_compra"></h4> </div> <div class="modal-body"> <h3 class="text-center">¿Estas seguro de que quieres eliminar este pedido?</h3> <br /> <form class="form-horizontal" role="form"> <div class="form-group"> <label class="control-label col-sm-2" for="id">id:</label> <div class="col-sm-10"> <input type="text" class="form-control" id="id_delete" disabled> </div> </div> <div class="form-group"> <label class="control-label col-sm-2" for="orden_de_compra">Orden de compra:</label> <div class="col-sm-10"> <input type="name" class="form-control" id="orden_de_compra_delete" disabled> </div> </div> </form> <div class="modal-footer"> <button type="button" class="btn btn-danger delete" data-dismiss="modal"> <span id="" class='glyphicon glyphicon-trash'></span> Delete </button>this delete button doesnt work with Bootstrap 4 but is working with bootstrap 3 <button type="button" class="btn btn-warning" data-dismiss="modal"> <span class='glyphicon glyphicon-remove'></span> Close </button> </div> </div> </div> </div> </div> 

在查看了“ 遷移到v4”文檔后，並沒有發現任何關於此的絕對信息……
我最終通過比較v4標記以查找％＆*可能有何不同來找到它。

這是相當微妙的...我不知道class="modal-cliente"用途是什么...潛在的錯誤並不影響v3。 但是看來這是v4的問題。 role="document"可能也很重要...抱歉，我無法更詳細地解釋。 ;）

在下面的標記中查找2條稍作更改的行。

BS4：

 $('.modal-footer').on('click', '.delete', function() { console.log("I'm here."); }); 

 <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.0/umd/popper.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.0/js/bootstrap.min.js"></script> <button type="button" data-toggle="modal" data-target="#deleteModal">Open Modal</button> <div id="deleteModal" class="modal fade" role="dialog"> <!-- Those 2 lines are slightly changed --> <div class="modal-dialog" role="document"> <div class="modal-content"> <!-- ============================ --> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal">×</button> <h4 class="modal-orden_de_compra"></h4> </div> <div class="modal-body"> <h3 class="text-center">¿Estas seguro de que quieres eliminar este pedido?</h3> <br /> <form class="form-horizontal" role="form"> <div class="form-group"> <label class="control-label col-sm-2" for="id">id:</label> <div class="col-sm-10"> <input type="text" class="form-control" id="id_delete" disabled> </div> </div> <div class="form-group"> <label class="control-label col-sm-2" for="orden_de_compra">Orden de compra:</label> <div class="col-sm-10"> <input type="name" class="form-control" id="orden_de_compra_delete" disabled> </div> </div> </form> <div class="modal-footer"> <button type="button" class="btn btn-danger delete" data-dismiss="modal"> <span id="" class='glyphicon glyphicon-trash'></span> Delete </button>this delete button doesnt work with Bootstrap 4 but is working with bootstrap 3 <button type="button" class="btn btn-warning" data-dismiss="modal"> <span class='glyphicon glyphicon-remove'></span> Close </button> </div> </div> </div> </div> </div>