TemplateControl.XPath Method (String, String, IXmlNamespaceResolver)
.NET Framework (current version)
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.
Assembly: System.Web (in System.Web.dll)
Protected Friend Function XPath ( xPathExpression As String, format As String, resolver As IXmlNamespaceResolver ) As String
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.StringA string that results from the evaluation of the data-binding expression and conversion to a string type.
| Exception | Condition |
|---|---|
| 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
Available since 2.0
Available since 2.0
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