我的HTML文件中有一个表,在其中一个列中我有一个来自bootstrap的按钮组件,当点击按钮时,下拉列表会出现三个选项 - “中”,“低”,“服务请求”。单击此项目时,我试图获取项目的值。
$(".table table-hover table-condensed").on('click', '.dropdown-menu', function(e) {
var id = $(this).attr('#mediumpriority');
alert(id);
});
@import url('//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap-theme.min.css');
body {
margin: 10px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<table class="table table-hover table-condensed">
<thead>
<tr>
<th>Priority</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<div class="btn-group">
<button type="button" class="btn btn-danger btn-sm dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
High
</button>
<div class="dropdown-menu">
<a id="mediumpriority" class="dropdown-item">Medium</a>
<a class="dropdown-item">Low</a>
<a class="dropdown-item">Service Request</a>
</div>
</div>
</td>
</tr>
</tbody>
</table>
当我点击“高”按钮时,我会得到三个选项的下拉菜单,如果我点击“中等”,我希望警报显示“中等”值:
<a id="mediumpriority" class="dropdown-item">Medium</a>
有人可以指出为什么我跑步并点击优先级'中等'时我没有收到此警报?
答案 0 :(得分:1)
让jQuery选择器看起来不正确。它应该是
$(".table.table-hover.table-condensed").on('click', '.dropdown-item', function(e) {
var menu = $(this).html();
alert(menu);
});
答案 1 :(得分:0)
此选择器错误:
$(".table table-hover table-condensed")
^ ^
使用此功能: .table.table-hover.table-condensed
要获取attr ID,请使用以下字段: $(this).attr('id')
事件委托调用正在使用错误的子选择器
$(".table table-hover table-condensed").on('click', '.dropdown-menu', function(e) {
^
请改用: .dropdown-item
$(".table.table-hover.table-condensed").on('click', '.dropdown-item', function(e) {
var text = $(this).text();
alert(text);
});
@import url('//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap-theme.min.css');
body {
margin: 10px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<table class="table table-hover table-condensed">
<thead>
<tr>
<th>Priority</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<div class="btn-group">
<button type="button" class="btn btn-danger btn-sm dropdown-toggle" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
High
</button>
<div class="dropdown-menu">
<a id="mediumpriority" class="dropdown-item">Medium</a>
<a class="dropdown-item">Low</a>
<a class="dropdown-item">Service Request</a>
</div>
</div>
</td>
</tr>
</tbody>
</table>