LINQ Programming by Joe Mayo

Author:Joe Mayo
Language: eng
Format: epub
Publisher: McGraw-Hill Education
Published: 2009-04-15T04:00:00+00:00

var zune =

(from prod in products.Elements(“product”)

where prod.Attribute(“productID”).Value == “1”

select prod)

.Single();

Console.WriteLine(zune);

This filter used prod.Attribute(“productID”).Value to return the product with a productID, attribute equal to 1.

In addition to the Elements method, LINQ to XML offers many axes methods for querying XML, as discussed in the next section.

LINQ to XML Axis Methods

An axis is a point of reference from which to view related elements. To demonstrate how they work, we’ll use the following XML document, products.xml, to show how each of the LINQ to SQL axis methods works:

<?xml version=“1.0” encoding=“utf-8”?>

<products>

<product productID=“1”>

<name>Zune</name>

<listPrice>250.00</listPrice>

</product>

<product productID=“2”>

<name>iPod</name>

<listPrice>299.00</listPrice>

</product>

</products>

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