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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
)

Parameters

xPathExpression
Type: System.String

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

format
Type: System.String

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

resolver
Type: System.Xml.IXmlNamespaceResolver

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

Return Value

Type: System.String
A string that results from the evaluation of the data-binding expression and conversion to a string type.
ExceptionCondition
InvalidOperationException

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.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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