void AddToTree(ClassAndSubclasses parentClass, List<Type> classes) {
foreach (Type type in classes) {
Type baseType = type.GetTypeInfo().BaseType;
if (baseType == parentClass.Type) {
ClassAndSubclasses subClass = new ClassAndSubclasses(type);
parentClass.Subclasses.Add(subClass);
AddToTree(subClass, classes);
}
}
}
public DependencyObjectClassHierarchyPage() {
this.InitializeComponent();
highlightBrush = new SolidColorBrush(new UISettings().UIElementColor(UIElementType.Highlight));
// Accumulate all the classes that derive from DependencyObject
AddToClassList(typeof(Windows.UI.Xaml.DependencyObject));
// Sort them alphabetically by name
classes.Sort((t1, t2) => {
return String.Compare(t1.GetTypeInfo().Name, t2.GetTypeInfo().Name);
});
// Put all these sorted classes into a tree structure
ClassAndSubclasses rootClass = new ClassAndSubclasses(rootType);
AddToTree(rootClass, classes);
// Display the tree using TextBlock's added to StackPanel
Display(rootClass, 0);
}
void Display(ClassAndSubclasses parentClass, int indent) {
TypeInfo typeInfo = parentClass.Type.GetTypeInfo();
// Create TextBlock with type name
TextBlock txtblk = new TextBlock();
txtblk.Inlines.Add(new Run { Text = new string(' ', 8 * indent) });
txtblk.Inlines.Add(new Run { Text = typeInfo.Name });
// Indicate if the class is sealed
if (typeInfo.IsSealed) {
txtblk.Inlines.Add(new Run {Text = " (sealed)", Foreground = highlightBrush });
}
// Indicated if the class can't be instantiated
IEnumerable<ConstructorInfo> constructorInfos = typeInfo.DeclaredConstructors;
int publicConstructCount = 0;
foreach (ConstructorInfo constructorInfo in constructorInfos) {
if (constructorInfo.IsPublic) {
publicConstructCount += 1;
}
}
if (publicConstructCount == 0) {
txtblk.Inlines.Add(new Run { Text = " (non-instantiable)", Foreground = highlightBrush });
}
// Add to the StackPanel
stackPanel.Children.Add(txtblk);
// Call this method recursively for all subclasses
foreach (ClassAndSubclasses subClass in parentClass.Subclasses) {
Display(subClass, indent + 1);
}
}