Bootstrap 3 在页面加载时使用 Javascript 打开下拉菜单
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Bootstrap 3 Open Drop Down on page load with Javascript
提问by duyn9uyen
I can't seem to open this dropdown menu on page load. Can anyone help? Documentation on Bootrap 3 is here: http://getbootstrap.com/javascript/#dropdowns
我似乎无法在页面加载时打开此下拉菜单。任何人都可以帮忙吗？Bootrap 3 的文档在这里：http://getbootstrap.com/javascript/#dropdowns
I tried this but it doesn't seem to work
我试过这个，但它似乎不起作用
$('#myDropdown').dropdown()
Ultimately, I need to be able to open a drop down that is inside a collapsible menu. For example, I want to open the first down down menu after the user clicks on the menu button. but I can't get it to work.
最终，我需要能够打开可折叠菜单内的下拉菜单。例如，我想在用户单击菜单按钮后打开第一个向下菜单。但我无法让它工作。
Edit: When the navbar is shown, use a timer to wait 1 millisecond before calling .dropdown('toggle'). Like this.
编辑：显示导航栏时，使用计时器等待 1 毫秒，然后再调用 .dropdown('toggle')。像这样。
function OpenDropDown() {
$('.dropdown-menu').dropdown('toggle');
};
$('.collapse.navbar-collapse').on('show.bs.collapse', function () {
window.setTimeout(OpenDropDown, 1);
});
回答by Jér?me Teisseire
try this :
试试这个 ：
$(function () {
$('.dropdown-menu').dropdown('toggle');
});
回答by Zim
Try this..
试试这个..
$(function () {
$('[data-toggle="dropdown"]').dropdown('toggle');
});
Or you can use the button id like:
或者您可以使用按钮 id，如：
$('#dLabel').dropdown('toggle');
