我希望将onclick事件绑定到使用jQuery动态插入的元素
但它从不运行绑定的函数。如果你能指出这个例子为什么不能工作,以及我如何让它正常运行,我会很高兴:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="da" lang="da">
<head>
<title>test of click binding</title>
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
<script type="text/javascript">
jQuery(function(){
close_link = $('<a class="" href="#">Click here to see an alert</a>');
close_link.bind("click", function(){
alert('hello from binded function call');
//do stuff here...
});
$('.add_to_this').append(close_link);
});
</script>
</head>
<body>
<h1 >Test of click binding</h1>
<p>problem: to bind a click event to an element I append via JQuery.</p>
<div class="add_to_this">
<p>The link is created, then added here below:</p>
</div>
<div class="add_to_this">
<p>Another is added here below:</p>
</div>
</body>
</html>
编辑:我对示例进行了编辑,使其包含方法插入到的两个元素。在这种情况下,永远不会执行alert()
调用。(感谢@Daff在评论中指出这一点)
发布于 2013-07-09 16:13:27
与元素一起创建单击事件是可能的,有时也是必要的。例如,当基于选择器的绑定不是一个选项时。关键部分是通过在单个元素上使用.replaceWith()
来避免Tobias所讨论的问题。请注意,这只是一个概念证明。
<script>
// This simulates the object to handle
var staticObj = [
{ ID: '1', Name: 'Foo' },
{ ID: '2', Name: 'Foo' },
{ ID: '3', Name: 'Foo' }
];
staticObj[1].children = [
{ ID: 'a', Name: 'Bar' },
{ ID: 'b', Name: 'Bar' },
{ ID: 'c', Name: 'Bar' }
];
staticObj[1].children[1].children = [
{ ID: 'x', Name: 'Baz' },
{ ID: 'y', Name: 'Baz' }
];
// This is the object-to-html-element function handler with recursion
var handleItem = function( item ) {
var ul, li = $("<li>" + item.ID + " " + item.Name + "</li>");
if(typeof item.children !== 'undefined') {
ul = $("<ul />");
for (var i = 0; i < item.children.length; i++) {
ul.append(handleItem(item.children[i]));
}
li.append(ul);
}
// This click handler actually does work
li.click(function(e) {
alert(item.Name);
e.stopPropagation();
});
return li;
};
// Wait for the dom instead of an ajax call or whatever
$(function() {
var ul = $("<ul />");
for (var i = 0; i < staticObj.length; i++) {
ul.append(handleItem(staticObj[i]));
}
// Here; this works.
$('#something').replaceWith(ul);
});
</script>
<div id="something">Magical ponies ♥</div>
https://stackoverflow.com/questions/1525664
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