我正在对下拉菜单项选择执行操作。
但是我在localhost上测试时没有做任何动作,甚至没有显示菜单项。虽然我已经包含了所有文件。
代码:
<html lang="en">
<head>
<link href="css/bootstrap.css" rel="stylesheet">
<link href="css/bootstrap.min.css" rel="stylesheet">
<link href="sticky-footer-navbar.css" rel="stylesheet">
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/bootstrap.js"></script>
<script>
$(".dropdown-menu li a").click(function(){
alert("hi");
var selText = $(this).text();
$('label').css('color',selText);
});
</script>
</head>
<body>
<label>Test color</label>
<div class="col-lg-6">
<div class="input-group">
<input type="text" class="form-control">
<div class="input-group-btn btn-default">
<button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown"> <span class="caret"></span>
</button>
<ul class="dropdown-menu pull-right">
<li><a href="#">yellow</a>
</li>
<li><a href="#">green</a>
</li>
<li><a href="#">black</a>
</li>
<li class="divider"></li>
<li><a href="#">red</a>
</li>
</ul>
</div>
<!-- /btn-group -->
</div>
<!-- /input-group -->
</div>
</body>
</html>
这段代码出了什么问题?
UPDATE1
<script>
$( document ).ready(function() {
alert("hi");
var selText = $(this).text();
$('label').css('color',selText);
});
</script>
没有变化
结果如下:
更新代码:
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="author" content="">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src=" http://ajax.googleapis.com/ajax/libs/jqueryui/1.9.2/jquery-ui.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/bootstrap.js"></script>
<link href="css/bootstrapa.css" rel="stylesheet">
<link href="css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<label>Test color</label>
<div class="col-lg-6">
<div class="input-group">
<input type="text" class="form-control">
<div class="input-group-btn btn-default">
<button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown"> <span class="caret"></span>
</button>
<ul class="dropdown-menu pull-right">
<li><a href="#">yellow</a>
</li>
<li><a href="#">green</a>
</li>
<li><a href="#">black</a>
</li>
<li class="divider"></li>
<li><a href="#">red</a>
</li>
</ul>
</div>
<!-- /btn-group -->
</div>
<!-- /input-group -->
</div>
<script>
$( document ).ready(function() {
alert("hi");
var selText = $(this).text();
$('label').css('color',selText);
});
</script>
</body>
</html>
答案 0 :(得分:1)
尝试在jQuery UI引用之前包含jQuery lib。
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
答案 1 :(得分:1)
试试这个:
$(".dropdown-menu li a").on('click', function(){
alert("hi");
var selText = $(this).text();
$('label').css('color',selText);
});
答案 2 :(得分:1)
您需要在文档准备好时定义单击功能。在编辑中,您只需尝试从单击函数$(document).ready()
函数移动代码。在该上下文中,$(this)
未引用select元素。试试这个:
$(document).ready(function() {
$(".dropdown-menu li a").click(function(){
var selText = $(this).text();
$('label').css('color',selText);
});
});
答案 3 :(得分:1)
这是你的代码:
<!doctype html>
<html lang="en">
<head>
<link href="http://netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="stylesheet">
</head>
<body>
<label>Test color</label>
<div class="col-lg-6">
<div class="input-group">
<input type="text" class="form-control">
<div class="input-group-btn btn-default">
<button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown"> <span class="caret"></span>
</button>
<ul class="dropdown-menu pull-right">
<li><a href="#">yellow</a>
</li>
<li><a href="#">green</a>
</li>
<li><a href="#">black</a>
</li>
<li class="divider"></li>
<li><a href="#">red</a>
</li>
</ul>
</div>
<!-- /btn-group -->
</div>
<!-- /input-group -->
</div>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js"></script>
<script src="http://netdna.bootstrapcdn.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>
<script>
$(".dropdown-menu li a").click(function(){
alert("hi");
var selText = $(this).text();
$('label').css('color',selText);
});
</script>
</body>
</html>
希望这有帮助。