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Pro LINQ: Language Integrated Query in C# 2008 by Joseph C. Rattz Jr.

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Elements

The Elements operator can be called on a sequence of elements or documents and returns a sequence of elements containing each source element's or document's child elements.

This operator is different than the Descendants operator, because the Elements operator only returns the immediate child elements of each element in the source sequence of elements, whereas the Descendants operator recursively returns all child elements until the end of each tree is reached.

Prototypes

The Elements operator has two prototypes.

Example. The First Elements Prototype
public static IEnumerable<XElement> Elements<T> (
  this IEnumerable<T> source
) where T : XContainer

This version is called on a sequence of elements or documents and returns a sequence ...

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