Extensions::AncestorsAndSelf Method (IEnumerable<XElement^>^)
Returns a collection of elements that contains every element in the source collection, and the ancestors of every element in the source collection.
Assembly: System.Xml.Linq (in System.Xml.Linq.dll)
public: [ExtensionAttribute] static IEnumerable<XElement^>^ AncestorsAndSelf( IEnumerable<XElement^>^ source )
Parameters
- source
-
Type:
System.Collections.Generic::IEnumerable<XElement^>^
An IEnumerable<T> of XElement that contains the source collection.
Return Value
Type: System.Collections.Generic::IEnumerable<XElement^>^An IEnumerable<T> of XElement that contains every element in the source collection, and the ancestors of every element in the source collection.
If multiple nodes in the source collection have the same ancestor, the ancestor will be included multiple times in the result collection. To avoid this, use the Distinct method.
This method uses deferred execution.
The following example retrieves a collection of the great grandchildren elements. It then uses this axis method to retrieve all ancestors and self of all elements in the collection.
This example produces the following output:
Great Grand Children Elements ---- GreatGrandChild1 GreatGrandChild2 Ancestors and Self ---- GreatGrandChild1 GrandChild1 Child1 Root GreatGrandChild2 GrandChild2 Child2
The following is the same example, but in this case the XML is in a namespace. For more information, see Working with XML Namespaces.
This example produces the following output:
Great Grand Children Elements
----
{http://www.adventure-works.com}GreatGrandChild1
{http://www.adventure-works.com}GreatGrandChild2
Ancestors and Self
----
{http://www.adventure-works.com}GreatGrandChild1
{http://www.adventure-works.com}GrandChild1
{http://www.adventure-works.com}Child1
{http://www.adventure-works.com}Root
{http://www.adventure-works.com}GreatGrandChild2
{http://www.adventure-works.com}GrandChild2
{http://www.adventure-works.com}Child2
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1