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XmlReader.IsStartElement Method (String, String)

Calls MoveToContent and tests if the current content node is a start tag or empty element tag and if the LocalName and NamespaceURI properties of the element found match the given strings.

Namespace:  System.Xml
Assembly:  System.Xml (in System.Xml.dll)

abstract IsStartElement : 
        localname:string * 
        ns:string -> bool  
override IsStartElement : 
        localname:string * 
        ns:string -> bool

Parameters

localname
Type: System.String

The string to match against the LocalName property of the element found.

ns
Type: System.String

The string to match against the NamespaceURI property of the element found.

Return Value

Type: System.Boolean
true if the resulting node is an element. false if a node type other than XmlNodeType.Element was found or if the LocalName and NamespaceURI properties of the element do not match the specified strings.

ExceptionCondition
XmlException

Incorrect XML is encountered in the input stream.

InvalidOperationException

An XmlReader method was called before a previous asynchronous operation finished. In this case, InvalidOperationException is thrown with the message “An asynchronous operation is already in progress.”

This method skips white space, comments, and processing instructions until the reader is positioned on a content node. The method then tests if the current node is an element.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

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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