XPathNavigator.DeleteRange Method (System.Xml.XPath)

DeleteRange Method

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Microsoft Visual Studio 2008/.NET Framework 3.5

Other versions are also available for the following:

.NET Framework Class Library

XPathNavigator..::.DeleteRange Method

Deletes a range of sibling nodes from the current node to the node specified.

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

Syntax

Visual Basic (Declaration)

Public Overridable Sub DeleteRange ( _
    lastSiblingToDelete As XPathNavigator _
)

Visual Basic (Usage)

Dim instance As XPathNavigator
Dim lastSiblingToDelete As XPathNavigator

instance.DeleteRange(lastSiblingToDelete)

public virtual void DeleteRange(
    XPathNavigator lastSiblingToDelete
)

Visual C++

public:
virtual void DeleteRange(
    XPathNavigator^ lastSiblingToDelete
)

JScript

public function DeleteRange(
    lastSiblingToDelete : XPathNavigator
)

Parameters

lastSiblingToDelete: Type: System.Xml.XPath..::.XPathNavigator
An XPathNavigator positioned on the last sibling node in the range to delete.

Exceptions

Exception	Condition
ArgumentNullException	The XPathNavigator specified is nullNothingnullptra null reference (Nothing in Visual Basic).
NotSupportedException	The XPathNavigator does not support editing.
InvalidOperationException	The last node to delete specified is not a valid sibling node of the current node.

Remarks

The DeleteRange method deletes a range of sibling nodes from the current node the XPathNavigator is positioned on (inclusive) to the node specified by the XPathNavigator parameter (inclusive). The XPathNavigator is then positioned on its parent node.

Examples

In the following example, the first and second book elements of the contosoBooks.xml file are deleted using the DeleteRange method.

Visual Basic

Dim document As XmlDocument = New XmlDocument()
document.Load("contosoBooks.xml")
Dim navigator As XPathNavigator = document.CreateNavigator()

Dim manager As XmlNamespaceManager = New XmlNamespaceManager(document.NameTable)
manager.AddNamespace("bk", "http://www.contoso.com/books")

Dim first As XPathNavigator = navigator.SelectSingleNode("/bk:bookstore/bk:book[1]", manager)
Dim last As XPathNavigator = navigator.SelectSingleNode("/bk:bookstore/bk:book[2]", manager)

navigator.MoveTo(first)
navigator.DeleteRange(last)
Console.WriteLine(navigator.OuterXml)

XmlDocument document = new XmlDocument();
document.Load("contosoBooks.xml");
XPathNavigator navigator = document.CreateNavigator();

XmlNamespaceManager manager = new XmlNamespaceManager(document.NameTable);
manager.AddNamespace("bk", "http://www.contoso.com/books");

XPathNavigator first = navigator.SelectSingleNode("/bk:bookstore/bk:book[1]", manager);
XPathNavigator last = navigator.SelectSingleNode("/bk:bookstore/bk:book[2]", manager);

navigator.MoveTo(first);
navigator.DeleteRange(last);
Console.WriteLine(navigator.OuterXml);

Visual C++

XmlDocument^ document = gcnew XmlDocument();
document->Load("contosoBooks.xml");
XPathNavigator^ navigator = document->CreateNavigator();

XmlNamespaceManager^ manager = gcnew XmlNamespaceManager(document->NameTable);
manager->AddNamespace("bk", "http://www.contoso.com/books");

XPathNavigator^ first = navigator->SelectSingleNode("/bk:bookstore/bk:book[1]", manager);
XPathNavigator^ last = navigator->SelectSingleNode("/bk:bookstore/bk:book[2]", manager);

navigator->MoveTo(first);
navigator->DeleteRange(last);
Console::WriteLine(navigator->OuterXml);

The example takes the contosoBooks.xml file as an input.

<bookstore xmlns="http://www.contoso.com/books">
    <book genre="autobiography" publicationdate="1981-03-22" ISBN="1-861003-11-0">
        <title>The Autobiography of Benjamin Franklin</title>
        <author>
            <first-name>Benjamin</first-name>
            <last-name>Franklin</last-name>
        </author>
        <price>8.99</price>
    </book>
    <book genre="novel" publicationdate="1967-11-17" ISBN="0-201-63361-2">
        <title>The Confidence Man</title>
        <author>
            <first-name>Herman</first-name>
            <last-name>Melville</last-name>
        </author>
        <price>11.99</price>
    </book>
    <book genre="philosophy" publicationdate="1991-02-15" ISBN="1-861001-57-6">
        <title>The Gorgias</title>
        <author>
            <name>Plato</name>
        </author>
        <price>9.99</price>
    </book>
</bookstore>

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0

Reference

XPathNavigator Class

XPathNavigator Members

System.Xml.XPath Namespace