可以在C#或者XAML中设置：
C#：
a.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
a.Visibility = Windows.UI.Xaml.Visibility.Visible;
XAML：
Visibility="Collapsed"
Visibility="Visible"
vs2019 C#：
a.Visibility = Visibility.Collapsed;
a.Visibility = Visibility.Visible;
内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024