public partial class MainPage : PhoneApplicationPage
{
// 构造函数
public MainPage()
{
InitializeComponent();
}
public static readonly DependencyProperty VisibilityProperty =
DependencyProperty.Register("Visibility", typeof(string), typeof(UniformGrid), new PropertyMetadata("Collapsed"));
public string Visibility
{
get { return (string)GetValue(VisibilityProperty); }
set { SetValue(VisibilityProperty, value); }
}
private void Button_2_Click(object sender, RoutedEventArgs e)
{
Button_3.SetValue(VisibilityProperty, "Visible");
}
}
运行时,点击buuton_2后随即出现了argumentexception未处理的问题。uniformgrid类里是做了一个自定义布局。想请问可能的原因是什么?