使用代码控制flyout弹出

使用ShowAt方法,新建一个弹出内容选择框

private async void History_Click(object sender, RoutedEventArgs e)

{

Debug.WriteLine("Button弹出context内容");

var btn = sender as Button;

var flyout = new Flyout();

FileSelector fs = new FileSelector();

await fs.InitializeData();

flyout.Content = fs;

flyout.ShowAt(btn);

}

其中FileSelector是一个UserControl.