The first step of Parallel LINQ is partitioning. The source values is split into several partitions, so that multiple threads can execute the query logic in parallel.

So far, all the discussion for LINQ to Objects/XML does not involve multi-threading, concurrency, or parallel computing. This is by design, because pulling values from an IEnumerable<T> sequence is no

Besides creating and querying XML, LINQ to XML also provides APIs for other XML manipulations, including cloning, deleting, replacing, and updating XML structures:

As fore mentioned, LINQ to XML is just a specialized LINQ to Objects, so all the LINQ to Objects query methods can be used in LINQ to XML queries. LINQ to XML provides many function members and other

(eXtensible Markup Language) is widely used to represent, store, and transfer data. Since .NET 3.5, the built in LINQ to XML APIs are provided to enable LINQ q

After discussing the query methods provided by .NET, this part demonstrates how to define custom query methods:

Besides the built-in query methods (standard query operators) provided by System.Linq.Enumerable, Microsoft also provides additional query methods through the System.Interactive NuGet package (aka [In

Understanding of internals of query methods is very helpful for using them accurately and effectively, and is also helpful for defining custom query methods, which is discussed later in this chapter.