请问在加载完成时改变ApplicationBar的属性, 应该写在什么地方?

Question

我写在load里, 会报错 显示ApplicationBar的值为null

我希望把ApplicationBar设置为隐藏,因此在xaml中把IsVisible的属性设成false, 当程序加载完成后, 希望它成为true, 请问IsVisible=true这句应该写在哪里?

Answer 1

你好，

这里假设你创建了一个BackgroundWorker实例，需要将这句写在该实例的RunWorkerCompleted事件里。

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Haixia
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Answer 2

this.loaded+=xxx

void xxx

this.Applicationbar.xx=xxx