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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: 4.6, 4.5, 4, 3.5, 3.0, 2.0
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