internal static IEnumerable <DependencyObject> GetAncestors(DependencyObject depObj, bool self, TreeEnumerationStrategy strategy)
{
if (depObj == null)
{
yield break;
}
if (self)
{
yield return(depObj);
}
for (var parent = strategy.GetAncestor(depObj);
parent != null;
parent = strategy.GetAncestor(parent))
{
yield return(parent);
}
}
public override DependencyObject GetAncestor(DependencyObject dependencyObject)
{
if (dependencyObject == null)
{
return(null);
}
if (_disconnectedTree)
{
var disconnectedParent = PresentationTreeUtils.GetDisconnectedParent(dependencyObject);
if (disconnectedParent != null)
{
return(disconnectedParent);
}
}
return(_firstStrategy.GetAncestor(dependencyObject) ?? _secondStrategy.GetAncestor(dependencyObject));
}
internal static DependencyObject GetParent(DependencyObject dependencyObject, TreeEnumerationStrategy strategy)
{
return(strategy.GetAncestor(dependencyObject));
}
