public static TType GetAncestorOfType <TType>(this FrameworkElement thisObject)
{
TType type = default(TType);
foreach (object obj in VisualTreeExtensions.GetVisualAncestors((DependencyObject)thisObject))
{
if (obj is TType || typeof(TType).IsAssignableFrom(obj.GetType()))
{
type = (TType)obj;
break;
}
}
return(type);
}
protected override void OnClick()
{
var ancestor = VisualTreeExtensions
.GetVisualAncestors(Parent)
.OfType <LoadingContentControl>()
.FirstOrDefault();
if (ancestor != null)
{
var lri = ancestor.LoadingRetryInstance;
if (lri == null)
{
throw new InvalidOperationException("No associated data context that implements ILoadingRetryInstance.");
}
lri.RetryLoad();
}
else
{
throw new InvalidOperationException("No visual parent is of type LoadingContentControl.");
}
base.OnClick();
}
public static Rect TranslateToParent(this Rect rect, FrameworkElement child, FrameworkElement parent)
{
foreach (FrameworkElement element in Enumerable.OfType <FrameworkElement>((IEnumerable)VisualTreeExtensions.GetVisualAncestors((DependencyObject)child)))
{
if (element != parent)
{
Rect layoutSlot = LayoutInformation.GetLayoutSlot(element);
rect = RectExtensions.Translate(rect, layoutSlot.X, layoutSlot.Y);
}
else
{
break;
}
}
return(rect);
}
