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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.

StringBuilder output = new StringBuilder();
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();
output.Append("HashCode: " + equalityComparer.GetHashCode(xmlTree).ToString("X") + Environment.NewLine);
xmlTree.Add(new XElement("NewChild", "new content"));
output.Append("HashCode: " + equalityComparer.GetHashCode(xmlTree).ToString("X") + Environment.NewLine);

OutputTextBlock.Text = output.ToString();


Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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