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TemplateControl.XPath Method (String, IXmlNamespaceResolver)

.NET Framework 4.5

Evaluates an XPath data-binding expression using the specified prefix and namespace mappings for namespace resolution.

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

protected internal Object XPath(
	string xPathExpression,
	IXmlNamespaceResolver resolver
)

Parameters

xPathExpression: Type: System.String
The XPath expression to evaluate. For more information, see XPathBinder.

resolver: Type: System.Xml.IXmlNamespaceResolver
A set of prefix and namespace mappings used for namespace resolution.

Return Value

Type: System.Object
An object that results from the evaluation of the data-binding expression.

Exceptions

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

Remarks

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

Version Information

.NET Framework

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

Platforms

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.

Reference

TemplateControl Class

XPath Overload

System.Web.UI Namespace

XPathBinder

Other Resources

Data-Binding Expression Syntax

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