public static DependencyObject GetVisualOrLogicalParent(this DependencyObject dep)
{
if (dep == null)
{
return(null);
}
var ce = dep as ContentElement;
if (ce != null)
{
var parent = ContentOperations.GetParent(ce);
if (parent != null)
{
return(parent);
}
var fce = ce as FrameworkContentElement;
return(fce != null ? fce.Parent : null);
}
if (dep is Visual || dep is Visual3D)
{
return(VisualTreeHelper.GetParent(dep));
}
// If we're in Logical Land then we must walk
// up the logical tree until we find a
// Visual/Visual3D to get us back to Visual Land.
return(LogicalTreeHelper.GetParent(dep));
}
/// <summary>
/// Returns the first <see cref="UIElement" /> in the ancestral chain including
/// the element itself.
/// </summary>
/// <param name="element">
/// The <see cref="DependencyObject" /> to get the containing UI element for.
/// </param>
/// <returns>
/// The first <see cref="UIElement" /> that contains the <paramref name="element" />.
/// </returns>
/// <exception cref="ArgumentNullException">
/// If <paramref name="element" /> is null.
/// </exception>
public static UIElement GetContainingElement(this DependencyObject element)
{
if (element == null)
{
throw new ArgumentNullException("element");
}
var uiElement = element as UIElement;
if (uiElement != null)
{
return(uiElement);
}
var contentElement = element as ContentElement;
if (contentElement != null)
{
DependencyObject parent = ContentOperations.GetParent(contentElement)
?? LogicalTreeHelper.GetParent(contentElement);
if (parent != null)
{
return(GetContainingElement(parent));
}
}
return(null);
}
/// <summary>
/// This method is an alternative to WPF's
/// <see cref="VisualTreeHelper.GetParent"/> method, which also
/// supports content elements. Keep in mind that for content element,
/// this method falls back to the logical tree of the element!
/// </summary>
/// <param name="child">The item to be processed.</param>
/// <returns>The submitted item's parent, if available. Otherwise
/// null.</returns>
public static DependencyObject GetParentObject(this DependencyObject child)
{
switch (child)
{
case null:
return(null);
//handle content elements separately
case ContentElement contentElement:
{
var parent = ContentOperations.GetParent(contentElement);
if (parent != null)
{
return(parent);
}
return(contentElement is FrameworkContentElement fce ? fce.Parent : null);
}
//also try searching for parent in framework elements (such as DockPanel, etc)
case FrameworkElement frameworkElement:
{
var parent = frameworkElement.Parent;
if (parent != null)
{
return(parent);
}
break;
}
}
//if it's not a ContentElement/FrameworkElement, rely on VisualTreeHelper
return(VisualTreeHelper.GetParent(child));
}
public static DependencyObject FindObjectParent(DependencyObject source, Predicate <DependencyObject> isTypeMatching)
{
DependencyObject testOb = source;
while (testOb != null && !isTypeMatching(testOb))
{
var nextParentOb = LogicalTreeHelper.GetParent(testOb);
if (nextParentOb == null)
{
if (testOb is FrameworkElement)
{
nextParentOb = VisualTreeHelper.GetParent(testOb);
}
if (nextParentOb == null && testOb is ContentElement)
{
nextParentOb = ContentOperations.GetParent((ContentElement)testOb);
}
if (nextParentOb == null)
{
nextParentOb = InheritanceContextProp.GetValue(testOb, null) as DependencyObject;
}
}
testOb = nextParentOb;
}
return(testOb);
}
static DependencyObject GetParentObject(DependencyObject child)
{
if (child == null)
{
return(null);
}
ContentElement contentElement = child as ContentElement;
if (contentElement != null)
{
DependencyObject parent = ContentOperations.GetParent(contentElement);
if (parent != null)
{
return(parent);
}
FrameworkContentElement fce = contentElement as FrameworkContentElement;
return(fce != null ? fce.Parent : null);
}
FrameworkElement frameworkElement = child as FrameworkElement;
if (frameworkElement != null)
{
DependencyObject parent = frameworkElement.Parent;
if (parent != null)
{
return(parent);
}
}
return(VisualTreeHelper.GetParent(child));
}
public static DependencyObject GetParent(this DependencyObject child)
{
if (child == null)
{
return((DependencyObject)null);
}
ContentElement reference = child as ContentElement;
if (reference == null)
{
return(VisualTreeHelper.GetParent(child));
}
DependencyObject parent = ContentOperations.GetParent(reference);
if (parent != null)
{
return(parent);
}
FrameworkContentElement frameworkContentElement = reference as FrameworkContentElement;
if (frameworkContentElement == null)
{
return((DependencyObject)null);
}
else
{
return(frameworkContentElement.Parent);
}
}
internal static DependencyObject FindParent(DependencyObject o)
{
DependencyObject dependencyObject = o as Visual;
if (dependencyObject == null)
{
dependencyObject = (o as Visual3D);
}
ContentElement contentElement = (dependencyObject == null) ? (o as ContentElement) : null;
if (contentElement != null)
{
o = ContentOperations.GetParent(contentElement);
if (o != null)
{
return(o);
}
FrameworkContentElement frameworkContentElement = contentElement as FrameworkContentElement;
if (frameworkContentElement != null)
{
return(frameworkContentElement.Parent);
}
}
else if (dependencyObject != null)
{
return(VisualTreeHelper.GetParent(dependencyObject));
}
return(null);
}
/// <summary>
/// Uses reflection and internal InheritanceContext, potentially fragile
/// http://stackoverflow.com/a/20988314/1069200
/// </summary>
/// <param name="child"></param>
/// <returns></returns>
public static IEnumerable <DependencyObject> AllAncestors(this DependencyObject child)
{
while (child != null)
{
var parent = LogicalTreeHelper.GetParent(child);
if (parent == null)
{
if (child is FrameworkElement)
{
parent = VisualTreeHelper.GetParent(child);
}
if (parent == null && child is ContentElement)
{
parent = ContentOperations.GetParent((ContentElement)child);
}
if (parent == null)
{
parent = InheritanceContextProp.GetValue(child, null) as DependencyObject;
}
}
if (parent == null)
{
yield break;
}
child = parent;
yield return(parent);
}
}
public static DependencyObject GetCoreParent(DependencyObject element, DeferredElementTreeState treeState)
{
DependencyObject parent = null;
if (treeState != null && treeState._oldCoreParents.ContainsKey(element))
{
parent = treeState._oldCoreParents[element];
}
else
{
Visual v = element as Visual;
if (v != null)
{
parent = VisualTreeHelper.GetParent(v);
}
else
{
ContentElement ce = element as ContentElement;
if (ce != null)
{
parent = ContentOperations.GetParent(ce);
}
else
{
Visual3D v3D = element as Visual3D;
if (v3D != null)
{
parent = VisualTreeHelper.GetParent(v3D);
}
}
}
}
return(parent);
}
/// <summary>
/// Gets the parent. Which tree the parent is retrieved from depends on the parameters.
/// </summary>
/// <param name="child">The child to get parent for.</param>
/// <param name="searchCompleteVisualTree">If true the parent in the visual tree is returned, if false the parent may be retrieved from another tree depending on the child type.</param>
/// <returns>The parent element, and depending on the parameters its retrieved from either visual tree, logical tree or a tree not strictly speaking either the logical tree or the visual tree.</returns>
public static DependencyObject GetParentObject(this DependencyObject child, bool searchCompleteVisualTree)
{
if (child == null) return null;
if (!searchCompleteVisualTree) {
var contentElement = child as ContentElement;
if (contentElement != null)
{
DependencyObject parent = ContentOperations.GetParent(contentElement);
if (parent != null) return parent;
var fce = contentElement as FrameworkContentElement;
return fce != null ? fce.Parent : null;
}
var frameworkElement = child as FrameworkElement;
if (frameworkElement != null)
{
DependencyObject parent = frameworkElement.Parent;
if (parent != null) return parent;
}
}
return VisualTreeHelper.GetParent(child);
}
private T FindVisualParent <T>(DependencyObject obj, DependencyProperty property, object value) where T : DependencyObject
{
while (obj != null)
{
ContentElement contentElement = obj as ContentElement;
if (contentElement != null)
{
// if our object is a content element, find its parent via ContentOperations.GetParent(...)
obj = ContentOperations.GetParent(contentElement);
// if that fails, try FrameworkContentElement.Parent instead.
FrameworkContentElement frameworkContentElement = contentElement as FrameworkContentElement;
if (frameworkContentElement != null)
{
obj = frameworkContentElement.Parent;
}
else
{
obj = null;
}
}
else
{
// if our object is not a content element, find its parent via VisualTreeHelper.GetParent(...)
obj = VisualTreeHelper.GetParent(obj);
}
if (obj != null && obj is T && (property == null || value == null || value.Equals(obj.GetValue(property))))
{
return((T)obj);
}
}
return(null);
}
public static DependencyObject GetParentObject(this DependencyObject context)
{
if (context == null)
{
return(null);
}
ContentElement contextAsContentElement = context as ContentElement;
if (contextAsContentElement != null)
{
DependencyObject parentOfContentElement = ContentOperations.GetParent(contextAsContentElement);
if (parentOfContentElement != null)
{
return(parentOfContentElement);
}
}
FrameworkElement contextAsFrameworkElement = context as FrameworkElement;
if (contextAsFrameworkElement != null)
{
DependencyObject parent = contextAsFrameworkElement.Parent;
if (parent != null)
{
return(parent);
}
}
return(VisualTreeHelper.GetParent(context));
}
public void CreateDraftEvent()
{
this.CreateCalendar();
var operations = new ContentOperations <Events>();
var eventItem = new Events();
eventTitle = TestContentPrefix + Guid.NewGuid().ToString();
eventItem.Title = eventTitle;
eventItem.Content = EventContent;
eventItem.EventStart = DateTime.UtcNow.ToString("o");
eventItem.EventEnd = DateTime.UtcNow.AddHours(2).ToString("o");
eventItem.ParentId = calendarId.ToString();
var response = operations.CreateDraft(eventItem);
Assert.AreEqual(HttpStatusCode.Created, response.StatusCode);
var results = JsonConvert.DeserializeObject <dynamic>(response.Content);
Assert.AreEqual(eventItem.Title, results.Title.ToString());
Assert.AreEqual(eventItem.Content, results.Content.ToString());
eventId = results.Id;
Assert.IsNotNull(eventId);
}
public static DependencyObject GetParentObject(this DependencyObject child)
{
switch (child)
{
case null:
return(null);
case ContentElement contentElement:
{
DependencyObject parent = ContentOperations.GetParent(contentElement);
if (parent != null)
{
return(parent);
}
return(contentElement is FrameworkContentElement fce ? fce.Parent : null);
}
case FrameworkElement frameworkElement:
{
DependencyObject parent = frameworkElement.Parent;
if (parent != null)
{
return(parent);
}
break;
}
}
return(VisualTreeHelper.GetParent(child));
}
public void CreateBlogPost()
{
this.CreateBlog();
Posts post = new Posts();
postTitle = TestContentPrefix + Guid.NewGuid().ToString();
post.Title = blogsTitle;
post.ParentId = blogId.ToString();
post.Content = PostContent;
var operations = new ContentOperations <Posts>();
operations.CreateDraft(post);
var response = operations.CreateDraft(post);
Assert.AreEqual(HttpStatusCode.Created, response.StatusCode);
var results = JsonConvert.DeserializeObject <dynamic>(response.Content);
Assert.AreEqual(post.Title, results.Title.ToString());
postId = results.Id;
Assert.IsNotNull(blogId);
response = operations.Publish(post);
Assert.AreEqual(HttpStatusCode.OK, response.StatusCode);
}
private static DependencyObject FindParent(DependencyObject o)
{
Visual v = o as Visual;
ContentElement ce = (v == null) ? o as ContentElement : null;
if (ce != null)
{
o = ContentOperations.GetParent(ce);
if (o != null)
{
return(o);
}
else
{
FrameworkContentElement fce = ce as FrameworkContentElement;
if (fce != null)
{
return(fce.Parent);
}
}
}
else if (v != null)
{
return(VisualTreeHelper.GetParent(v));
}
return(null);
}
public static DependencyObject GetParentObject(this DependencyObject child)
{
if (child == null)
{
return(null);
}
var contentElement = child as ContentElement;
if (contentElement != null)
{
var parent = ContentOperations.GetParent(contentElement);
if (parent != null)
{
return(parent);
}
var frameworkContentElement = contentElement as FrameworkContentElement;
return(frameworkContentElement != null ? frameworkContentElement.Parent : null);
}
var frameworkElement = child as FrameworkElement;
if (frameworkElement != null)
{
var parent = frameworkElement.Parent;
if (parent != null)
{
return(parent);
}
}
return(VisualTreeHelper.GetParent(child));
}
public static DependencyObject GetParent(this DependencyObject dependencyObject)
{
if (dependencyObject == null)
{
throw new ArgumentNullException(nameof(dependencyObject));
}
var fe = dependencyObject as FrameworkElement;
if (fe?.Parent != null)
{
return(fe.Parent);
}
var ce = dependencyObject as ContentElement;
if (ce == null)
{
return(VisualTreeHelper.GetParent(dependencyObject));
}
var parent = ContentOperations.GetParent(ce);
if (parent != null)
{
return(parent);
}
var fce = ce as FrameworkContentElement;
return(fce?.Parent);
}
internal static FrameworkObject GetContainingFrameworkElement(DependencyObject current)
{
var fo = new FrameworkObject(current);
while (!fo.IsValid && fo.DependencyObject != null)
{
// The current object is neither a FrameworkElement nor a
// FrameworkContentElement. We will now walk the "core"
// tree looking for one.
Visual visual;
Visual3D visual3D;
ContentElement ce;
if ((visual = fo.DependencyObject as Visual) != null)
{
fo.Reset(VisualTreeHelper.GetParent(visual));
}
else if ((ce = fo.DependencyObject as ContentElement) != null)
{
fo.Reset(ContentOperations.GetParent(ce));
}
else if ((visual3D = fo.DependencyObject as Visual3D) != null)
{
fo.Reset(VisualTreeHelper.GetParent(visual3D));
}
else
{
// The parent could be an application.
fo.Reset(null);
}
}
return(fo);
}
public static DependencyObject GetParentObject(this DependencyObject element)
{
if (element == null)
{
return(null);
}
if (element is ContentElement)
{
var parent = ContentOperations.GetParent((ContentElement)element);
if (parent != null)
{
return(parent);
}
var fce = element as FrameworkContentElement;
return(fce != null ? fce.Parent : null);
}
if (element is FrameworkElement)
{
var parent = ((FrameworkElement)element).Parent;
if (parent != null)
{
return(parent);
}
}
return(VisualTreeHelper.GetParent(element));
}
internal static DependencyObject FindContentElementParent(ContentElement ce)
{
DependencyObject dependencyObject = null;
DependencyObject dependencyObject2 = ce;
while (dependencyObject2 != null)
{
dependencyObject = (dependencyObject2 as Visual);
if (dependencyObject != null)
{
break;
}
dependencyObject = (dependencyObject2 as Visual3D);
if (dependencyObject != null)
{
break;
}
ce = (dependencyObject2 as ContentElement);
if (ce == null)
{
break;
}
dependencyObject2 = ContentOperations.GetParent(ce);
if (dependencyObject2 == null)
{
FrameworkContentElement frameworkContentElement = ce as FrameworkContentElement;
if (frameworkContentElement != null)
{
dependencyObject2 = frameworkContentElement.Parent;
}
}
}
return(dependencyObject);
}
public static DependencyObject GetParentObject(this DependencyObject child)
{
if (child == null)
{
return(null);
}
if (child is ContentElement contentElement)
{
var parent = ContentOperations.GetParent(contentElement);
if (parent != null)
{
return(parent);
}
return(contentElement is FrameworkContentElement fce ? fce.Parent : null);
}
if (child is FrameworkElement frameworkElement)
{
var parent = frameworkElement.Parent;
if (parent != null)
{
return(parent);
}
}
return(VisualTreeHelper.GetParent(child));
}
// Token: 0x0600648E RID: 25742 RVA: 0x001C36C8 File Offset: 0x001C18C8
internal static FrameworkObject GetContainingFrameworkElement(DependencyObject current)
{
FrameworkObject result = new FrameworkObject(current);
while (!result.IsValid && result.DO != null)
{
Visual reference;
ContentElement reference2;
Visual3D reference3;
if ((reference = (result.DO as Visual)) != null)
{
result.Reset(VisualTreeHelper.GetParent(reference));
}
else if ((reference2 = (result.DO as ContentElement)) != null)
{
result.Reset(ContentOperations.GetParent(reference2));
}
else if ((reference3 = (result.DO as Visual3D)) != null)
{
result.Reset(VisualTreeHelper.GetParent(reference3));
}
else
{
result.Reset(null);
}
}
return(result);
}
public static DependencyObject GetParentObject(DependencyObject child)
{
if (child == null)
{
return(null);
}
ContentElement contentElement = child as ContentElement;
DependencyObject parent = null;
if (contentElement != null)
{
parent = ContentOperations.GetParent(contentElement);
if (parent != null)
{
return(parent);
}
FrameworkContentElement fce = contentElement as FrameworkContentElement;
return(fce != null ? fce.Parent : null);
}
//if it's not a ContentElement, rely on VisualTreeHelper
parent = VisualTreeHelper.GetParent(child);
if (parent == null && child is FrameworkElement)
{
return((child as FrameworkElement).Parent);
}
return(parent);
}
internal static DependencyObject FindParent(DependencyObject o)
{
var visual = (DependencyObject)(o as Visual) ?? o as Visual3D;
var contentElement = visual == null ? o as ContentElement : null;
if (contentElement != null)
{
o = ContentOperations.GetParent(contentElement);
if (o != null)
{
return(o);
}
var frameworkContentElement = contentElement as FrameworkContentElement;
if (frameworkContentElement != null)
{
return(frameworkContentElement.Parent);
}
return(null);
}
if (visual != null)
{
return(VisualTreeHelper.GetParent(visual));
}
return(null);
}
private static DependencyObject GetParent(DependencyObject o)
{
if (o == null)
{
return(null);
}
if (o is ContentElement)
{
DependencyObject parent = ContentOperations.GetParent((ContentElement)o);
if (parent != null)
{
return(parent);
}
if (o is FrameworkContentElement)
{
return(((FrameworkContentElement)o).Parent);
}
}
else if (o is FrameworkElement)
{
return(((FrameworkElement)o).Parent);
}
return(VisualTreeHelper.GetParent(o));
}
public static DependencyObject GetParent(DependencyObject obj)
{
if (obj == null)
{
return(null);
}
var ce = obj as ContentElement;
if (ce == null)
{
return(VisualTreeHelper.GetParent(obj));
}
var parent = ContentOperations.GetParent(ce);
if (parent != null)
{
return(parent);
}
var fce = ce as FrameworkContentElement;
return(fce != null ? fce.Parent : null);
}
private static T TryFindParent <T>(DependencyObject child) where T : DependencyObject
{
DependencyObject parent;
if (child == null)
{
return(null);
}
if (child is ContentElement contentElement)
{
parent = ContentOperations.GetParent(contentElement);
if (parent == null && child is FrameworkContentElement fce)
{
parent = fce.Parent;
}
}
else
{
parent = VisualTreeHelper.GetParent(child);
}
if (parent is T result)
{
return(result);
}
else
{
return(TryFindParent <T>(parent));
}
}
/// <summary>
/// Finds the direct visual parent of an element.
/// </summary>
public static DependencyObject GetVisualParent(this DependencyObject dependencyObject)
{
DependencyObject parentObject = null;
if (dependencyObject != null)
{
ContentElement contentElement = dependencyObject as ContentElement;
if (contentElement != null)
{
DependencyObject parent = ContentOperations.GetParent(contentElement);
if (parent != null)
{
parentObject = parent;
}
else
{
FrameworkContentElement frameworkContentElement = contentElement as FrameworkContentElement;
parentObject =
frameworkContentElement != null ? frameworkContentElement.Parent : null;
}
}
else
{
parentObject = VisualTreeHelper.GetParent(dependencyObject);
}
}
return(parentObject);
}
internal static DependencyObject FindParent(DependencyObject o)
{
// see if o is a Visual or a Visual3D
DependencyObject v = o as Visual;
if (v == null)
{
v = o as Visual3D;
}
ContentElement ce = (v == null) ? o as ContentElement : null;
if (ce != null)
{
o = ContentOperations.GetParent(ce);
if (o != null)
{
return(o);
}
else
{
FrameworkContentElement fce = ce as FrameworkContentElement;
if (fce != null)
{
return(fce.Parent);
}
}
}
else if (v != null)
{
return(VisualTreeHelper.GetParent(v));
}
return(null);
}
