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// Build an XElement from string.

string myElement =

@"

Yellow

Yugo

";

XElement newElement = XElement.Parse(myElement);

Console.WriteLine(newElement);

Console.WriteLine();

// Load the SimpleInventory.xml file.

XDocument myDoc = XDocument.Load("SimpleInventory.xml");

Console.WriteLine(myDoc);

}

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Source Code

The LinqToXmlBasics example can be found under the Chapter 24 subdirectory.

Navigating an In-Memory Document

So, that this point you have seen various ways in which LINQ to XML can be used to create, save,

parse, and load XML data. The next aspect of LINQ to XML we need to examine is how to navigate a

given document to locate specific elements/attributes. While the LINQ to XML object model pro-

vides a number of methods that can be used to programmatically navigate a document, not too

surprisingly LINQ query expressions can also be used for this very purpose.

Since you have already seen numerous examples of building query expressions, the next

example will be short and sweet. First, create a new Console Application named

NavigationWithLinqToXml and import the System.Xml.Linq namespace. Next, add a new XML

document into your current project named Inventory.xml, which supports a small set of entries

within the root  element. Here is one possibility:







Ford

Blue

Chuck

VW

Silver

Mary

Yugo

Pink

Gipper

Ford

Yellow

C H A P T E R   2 4  

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8849CH24.qxd  10/19/07  10:11 AM  Page 862

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Max

BMW

Black

Zippy

Now, select this file within the Solution Explorer and use the Properties window to set the Copy

to Output Directory property to Copy Always (to ensure a copy of the file ends up in your Bin

folder). Finally, update your Main() method to load this file into memory using XElement.Load().

The local doc variable will be passed into various helper methods to modify the data in various

manners:

static void Main(string[] args)

{

Console.WriteLine("***** Fun with LINQ to XML *****\n");