public static DependencyObject GetRoot(this DependencyObject depObj, TreeEnumerationStrategy strategy)
{
return(depObj.GetAncestorsAndSelf(strategy).Last());
}
public static IEnumerable <DependencyObject> GetAncestorsAndSelf(this DependencyObject depObj, TreeEnumerationStrategy strategy)
{
return(PresentationTreeUtils.GetAncestors(depObj, true, strategy));
}
public static IEnumerable <T> GetAncestorsAndSelf <T>(this DependencyObject depObj, TreeEnumerationStrategy strategy) where T : DependencyObject
{
return(PresentationTreeUtils.GetAncestors(depObj, true, strategy).OfType <T>());
}
public static bool IsSelfOrDescendantOf(this DependencyObject depObj, DependencyObject ancestor, TreeEnumerationStrategy strategy)
{
return(ReferenceEquals(depObj, ancestor) || IsDescendantOf(depObj, ancestor, strategy));
}
public static bool IsSelfOrAncestorOf(this DependencyObject depObj, DependencyObject descendant, TreeEnumerationStrategy strategy)
{
return(ReferenceEquals(depObj, descendant) || IsAncestorOf(depObj, descendant, strategy));
}
public static bool IsDescendantOf(this DependencyObject depObj, DependencyObject ancestor, TreeEnumerationStrategy strategy)
{
return(GetAncestors(depObj, strategy).Any(a => ReferenceEquals(a, ancestor)));
}
public static T GetParent <T>(this DependencyObject depObj, TreeEnumerationStrategy strategy) where T : DependencyObject
{
return(PresentationTreeUtils.GetParent(depObj, strategy) as T);
}
public static DependencyObject GetParent(this DependencyObject depObj, TreeEnumerationStrategy strategy)
{
return(PresentationTreeUtils.GetParent(depObj, strategy));
}
