Attributes Method (IEnumerable(XElement), XName)
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Extensions.Attributes Method (IEnumerable<XElement>, XName)

 

Returns a filtered collection of the attributes of every element in the source collection. Only elements that have a matching XName are included in the collection.

Namespace:   System.Xml.Linq
Assembly:  System.Xml.Linq (in System.Xml.Linq.dll)

public static IEnumerable<XAttribute> Attributes(
	this IEnumerable<XElement> source,
	XName name
)

Parameters

source
Type: System.Collections.Generic.IEnumerable<XElement>

An IEnumerable<T> of XElement that contains the source collection.

name
Type: System.Xml.Linq.XName

The XName to match.

Return Value

Type: System.Collections.Generic.IEnumerable<XAttribute>

An IEnumerable<T> of XAttribute that contains a filtered collection of the attributes of every element in the source collection. Only elements that have a matching XName are included in the collection.

Note that unlike some other XML programming interfaces, in LINQ to XML, namespaces are surfaced as attributes.

This method uses deferred execution.

The following example retrieves a collection of elements, which in this case includes the Child1 and Child2 elements. It then retrieves all attributes of that child collection with a name of Att1.


                XElement xmlTree = new XElement("Root",
    new XAttribute("Att1", "content1"),
    new XAttribute("Att2", "content2"),
    new XElement("Child1",
        new XAttribute("Att1", "content3"),
        new XAttribute("Att2", "content4")
    ),
    new XElement("Child2",
        new XAttribute("Att1", "content5"),
        new XAttribute("Att2", "content6")
    )
);

IEnumerable<XAttribute> attList = from att in xmlTree.Elements().Attributes("Att1")
                                  select att;

foreach (XAttribute att in attList)
    Console.WriteLine(att);

This example produces the following output:

Att1="content3"
Att1="content5"

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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