[英]Jquery and Bootstrap 4 dataTable delete row on page 2 not working
美好的一天! 我有一个带有分页的jquery和bootstrap 4数据表,每行都有一个删除按钮,但是在第1页装满数据后,它将转到第2页。问题是带有删除按钮行的第2页中的数据不起作用,但是在第1页中,删除按钮可以正常工作。
这是我的表格代码:
<table class="table table-hover table-bordered" id="questionTable">
<thead>
<tr>
<th>No.</th>
<th>Student</th>
<th>Subject Code</th>
<th>Semester</th>
<th>SchoolYear</th>
<th>Professor</th>
<th></th>
</tr>
</thead>
<tbody>
<?php while ($row = $result -> fetch_object()): ?>
<tr>
<td><?php echo $row->Subject_Student_Taken;?></td>
<td><?php echo $row-> Student_ID;?></td>
<td><?php echo $row-> Subject_Code;?></td>
<td><?php echo $row-> Term_Name;?></td>
<td><?php echo $row-> SY_Name;?></td>
<td><?php echo $row-> Faculty_ID;?></td>
<td class="text-center">
<a class="btn btn-sm btn-outline-primary text-muted" href="SubjectTaken_edit.php?Subject_Student_Taken=<?php echo $row->Subject_Student_Taken;?>">Edit</a>
<a data-fid="<?php echo $row->Subject_Student_Taken;?>" title="Delete Faculty" data-toggle="modal" data-target="#delete_modal" class="btn btn-sm btn-outline-danger delete-faculty-btn text-muted" >Delete</a>
</td>
</tr>
<?php endwhile; ?>
</tbody>
</table>
这是我的删除代码:
if(!empty($_POST['delete'])) {
$id = $_POST['delete'];
$data->delete_StudentTakenHandle($id, $conn);
}
功能码:
function delete_StudentTakenHandle($id, $conn){
$sql = "DELETE FROM subject_taken_handle WHERE Subject_Student_Taken=? ";
$stmt = $conn->prepare($sql);
$stmt->bind_param("i", $id);
$stmt->execute();
}
模态代码:
<div class="modal fade" id="delete_modal" role="dialog">
<div class="modal-dialog">
<div class="modal-content">
<!-- Modal Header -->
<div class="modal-header">
<h4 class="modal-title">Delete Confirmaiton</h4>
<button type="button" class="close" data-dismiss="modal">×</button>
</div>
<!-- Modal body -->
<div class="modal-body">
<div class="alert alert-danger" role="alert">
Are you sure you want to delete selected record?
</div>
</div>
<!-- Modal footer -->
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">No</button>
<input type="hidden" name="delete" id="row-id-to-delete">
<button type="submit" class="btn btn-danger" >Yes</button>
</div>
</div>
</div>
</div>
这是我的jQuery代码:
<script>
$('.delete-faculty-btn').on('click',function(){
$("#row-id-to-delete").val($(this).data('fid'));
});
</script>
该错误很可能是由以下原因引起的:
设置jQuery事件时,仅显示(存在)第一页中的元素。
由于jQuery.on函数仅将事件附加到现有元素,因此该事件未附加到其他页面的元素。
解:
您应该将表的click事件用作包装器,以将事件附加到删除按钮。
这样,每次单击并更改页面时,都将存在删除按钮,并且jQuery.on函数将能够将要删除的事件附加到它们上。
您应该这样包装事件附加代码:
$("#questionTable").on("click", ".delete-faculty-button", function(){
// attach your delete event here
});
使用on的委托格式,而不是click .. on()| jQuery API文档
$('.delete-faculty-btn').on('click',function(){
$("#row-id-to-delete").val($(this).data('fid'));
});
变为:
$(document).on("click", ".delete-faculty-btn", function () {
$("#row-id-to-delete").val($(this).data('fid'));
});
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