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TemplateControl.XPath Method (String, String, IXmlNamespaceResolver)

Evaluates an XPath data-binding expression using the specified prefix and namespace mappings for namespace resolution and the specified format string to display the result.

Namespace: System.Web.UI
Assembly: System.Web (in system.web.dll)

protected internal string XPath (
	string xPathExpression,
	string format,
	IXmlNamespaceResolver resolver
protected String XPath (
	String xPathExpression, 
	String format, 
	IXmlNamespaceResolver resolver
protected internal function XPath (
	xPathExpression : String, 
	format : String, 
	resolver : IXmlNamespaceResolver
) : String
Not applicable.



The XPath expression to evaluate. For more information, see XPathBinder.


A .NET Framework format string to apply to the result.


A set of prefix and namespace mappings used for namespace resolution.

Return Value

A string that results from the evaluation of the data-binding expression and conversion to a string type.

Exception typeCondition


The data-binding method can be used only for controls contained on a Page.

The XPath method calls the XPathBinder.Eval method using the GetDataItem method to resolve the IXPathNavigable object reference that the expression is evaluated against.

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

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