除了在 stackoverflow 上折叠 Bootstrap 可折叠之外的所有工作，我将不胜感激一些建议。
当any opened item是clickedto 时collapse，其类按以下顺序变化：panel-collapse collapse in> panel-collapse collapsing> panel-collapse collapse in。在正确的顺序中，它应该导致panel-collapse collapse collapsed. 这还没有解决。问题是它collapse被调用了两次。
对此有什么解决方案，以便我可以将其用作模板的一部分？
更新：只有一个panel-group可以独占打开。现在通过删除解决data-parent了这个问题，它现在允许同时打开多个面板。
我添加了登录bootstrap.js（第 608-628 行）：
// COLLAPSE DATA-API
// =================
$(document).on('click.bs.collapse.data-api', '[data-toggle=collapse]', function (e) {
var $this = $(this), href
var target = $this.attr('data-target')
|| e.preventDefault()
|| (href = $this.attr('href')) && href.replace(/.*(?=#[^\s]+$)/, '') //strip for ie7
var $target = $(target)
var data = $target.data('bs.collapse')
var option = data ? 'toggle' : $this.data()
var parent = $this.attr('data-parent')
var $parent = parent && $(parent)
console.log("A",data);
if (!data || !data.transitioning) {console.log("B1");
if ($parent) { console.log("B2");
$parent.find('[data-toggle=collapse][data-parent="' + parent + '"]').not($this).addClass('collapsed')
}
console.log("B3",$target.hasClass('in'));
$this[$target.hasClass('in') ? 'addClass' : 'removeClass']('collapsed')
}
console.log("C", option);
$target.collapse(option)
console.log("D");
})
结果日志：
a)collapse第一次按下时，它看起来很乱
bootstrap.js:622 A undefined
bootstrap.js:623 B1
bootstrap.js:624 B2
bootstrap.js:627 B3 false
bootstrap.js:630 C Object {toggle: "collapse", bind: "text:displayLabel, attr:{href:idhash}"}
bootstrap.js:632 D
bootstrap.js:622 A Collapse {$element: jQuery.fn.jQuery.init[1], options: Object, transitioning: 1}
bootstrap.js:630 C toggle
bootstrap.js:632 D
b)collapse任何其他时间按下时
bootstrap.js:622 A Collapse {$element: x.fn.x.init[1], options: Object, transitioning: 0}
bootstrap.js:623 B1
bootstrap.js:624 B2
bootstrap.js:627 B3 true
bootstrap.js:630 C toggle
bootstrap.js:632 D
bootstrap.js:622 A Collapse {$element: jQuery.fn.jQuery.init[1], options: Object, transitioning: 1}
bootstrap.js:630 C toggle
bootstrap.js:632 D
正确的输出应该是：
a)collapse第一次按下时
bootstrap.js:622 A undefined
bootstrap.js:623 B1
bootstrap.js:624 B2
bootstrap.js:627 B3 false
bootstrap.js:630 C Object {toggle: "collapse", bind: "text:displayLabel, attr:{href:idhash}"}
bootstrap.js:632 D
b)collapse任何其他时间按下时
bootstrap.js:622 A Collapse {$element: jQuery.fn.jQuery.init[1], options: Object, transitioning: 0}
bootstrap.js:623 B1
bootstrap.js:624 B2
bootstrap.js:627 B3 (true or false)
bootstrap.js:630 C toggle
bootstrap.js:632 D
完整代码：
var confItems = {};
var childrenLength = 2;
confItems["children"] = new Array(childrenLength);
for (var i = 0; i < childrenLength; i++) {
confItems.children[i] = {};
confItems.children[i]["idhash"] = "#col-" + (i + 1);
confItems.children[i]["id"] = "col-" + (i + 1);
confItems.children[i]["displayLabel"] = "Item " + (i + 1);
confItems.children[i]["children"] = new Array(childrenLength);
for (var j = 0; j < childrenLength; j++) {
confItems.children[i].children[j] = {};
confItems.children[i]["idhash"] = "#col-" + (i + 1) + "-" + (j + 1);
confItems.children[i]["id"] = "col-" + (i + 1) + "-" + (j + 1);
confItems.children[i].children[j]["displayLabel"] = "Item " + (i + 1) + "." + (j + 1);
confItems.children[i].children[j]["children"] = new Array(0);
}
}
var viewModel = function() {
this.tree = ko.observable(confItems);
};
ko.applyBindings(new viewModel());<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css">
<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap-theme.min.css">
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.2.0/knockout-min.js"></script>
<div data-bind="template: {name:'largeTemplate', data: tree}"></div>
<script id='largeTemplate' type='text/html'>
<div class="panel-group">
<div id="accordion" class="panel panel-default" data-bind="foreach: children">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" data-bind="text:displayLabel, attr:{href:idhash}">Lorem</a>
</h4>
</div>
<div data-bind="attr:{id:id}" class="panel-collapse collapse">
<div class="panel-body" data-bind="foreach: children">
<div class="panel-heading">
<a data-bind="text:displayLabel">Donec</a>
</div>
</div>
</div>
</div>
</div>
</script>