Extensions::Ancestors<T> Method (IEnumerable<T>)
Silverlight
Returns a collection of elements that contains the ancestors of every node in the source collection.
Namespace: System.Xml.Linq
Assembly: System.Xml.Linq (in System.Xml.Linq.dll)
Type Parameters
- T
The type of the objects in source, constrained to XNode.
Parameters
- source
- Type: System.Collections.Generic::IEnumerable<T>
An IEnumerable<T> of XNode that contains the source collection.
Return Value
Type: System.Collections.Generic::IEnumerable<XElement>An IEnumerable<T> of XElement that contains the ancestors of every node in the source collection.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerable<T>. When you use instance method syntax to call this method, omit the first parameter.| Exception | Condition |
|---|---|
| ArgumentNullException | source is nullptr. |
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.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
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