Silverlight Accordion 控件：加载时全部折叠
我目前正在开发一个项目，我在主页上有一个手风琴控件。一切都按预期进行，但有一个小问题我似乎无法解决。
当我加载页面时，第一个手风琴会展开。是否有任何解决方法可以告诉手风琴控件，所有手风琴在首次加载时都应该折叠？
另外，我可以单击以展开项目，但是当我单击刚刚展开的同一项目时，它不会再次折叠。有人知道我应该在这里参加哪个活动吗？
提前致谢。
祝一切顺利，
博
I'm currently working on a project where I have an Accordion control on the MainPage. It all works just as intended, but there's a small problem that I cannot seem to get my head around.
When I load the page, the first accordion is expanded. Is there any work-around to tell the Accordion control, that all the accordions should be collapsed when first loaded?
Also, I can click to expand the items, but when I click on the same item that I just expanded, it won't collapse again. Anyone know which event I should reach for here?
Thanks in advance.
All the best,
Bo
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您需要将
SelectionMode属性更改为ZeroOrOne，默认值为One，这意味着它将坚持至少打开一项。将
SelectedIndex属性设置为 -1 以隐藏所有项目。You need to change the
SelectionModeproperty toZeroOrOnethe default isOnewhich means it will insist on having at least one item open.Set the
SelectedIndexproperty to -1 to hide all items.