void OnIsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
 {
     _context           = !IsVisible ? null : KeyMenuContext.Find(this);
     _items.ItemsSource = _context == null ? null : _context.KeyInfoList;
 }
Exemple #2
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 static void SetContext(DependencyObject element, KeyMenuContext value)
 {
     element.SetValue(ContextProperty, value);
 }