GetHashCode Method (XNode)
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XNodeEqualityComparer.GetHashCode Method (XNode)


Returns a hash code based on an XNode.

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

public int GetHashCode(
	XNode obj


Type: System.Xml.Linq.XNode

The XNode to hash.

Return Value

Type: System.Int32

A Int32 that contains a value-based hash code for the node.

The XNode implementation of GetHashCode is based on the referential identity of the node. This method computes a deep hash code based on the value of the node and all descendants. The hash code reflects all attributes and all descendent nodes.

The following example uses this method to get a deep hash code for an XML tree.

                XElement xmlTree = new XElement("Root",
    new XAttribute("Att1", 1),
    new XAttribute("Att2", 2),
    new XElement("Child1", 1),
    new XElement("Child2", "some content")
XNodeEqualityComparer equalityComparer = new XNodeEqualityComparer();
Console.WriteLine("HashCode: {0}", equalityComparer.GetHashCode(xmlTree).ToString("X"));
xmlTree.Add(new XElement("NewChild", "new content"));
Console.WriteLine("HashCode: {0}", equalityComparer.GetHashCode(xmlTree).ToString("X"));

This example produces the following output:

                HashCode: 958CCD0
HashCode: AD26516B

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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