InsertAfter Method

XPathNavigator.InsertAfter Method ()

 

Returns an XmlWriter object used to create a new sibling node after the currently selected node.

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

public virtual XmlWriter InsertAfter()

Return Value

Type: System.Xml.XmlWriter

An XmlWriter object used to create a new sibling node after the currently selected node.

Exception Condition
InvalidOperationException

The position of the XPathNavigator does not allow a new sibling node to be inserted after the current node.

NotSupportedException

The XPathNavigator does not support editing.

The following are important notes to consider when using the InsertAfter method.

  • The new sibling node is not inserted until the Close method of the XmlWriter object is called.

  • The InsertAfter method is valid only when the XPathNavigator is positioned on an element, text, processing instruction, or comment node.

  • The InsertAfter method does not affect the position of the XPathNavigator.

In the following example a new pages element is inserted after the price child element of the first book element in the contosoBooks.xml file using the XmlWriter object returned by the InsertAfter method.

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

navigator.MoveToChild("bookstore", "http://www.contoso.com/books");
navigator.MoveToChild("book", "http://www.contoso.com/books");
navigator.MoveToChild("price", "http://www.contoso.com/books");

XmlWriter pages = navigator.InsertAfter();
pages.WriteElementString("pages", "100");
pages.Close();

navigator.MoveToParent();
Console.WriteLine(navigator.OuterXml);

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


<?xml version="1.0" encoding="utf-8" ?>
<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>

Universal Windows Platform
Available since 10
.NET Framework
Available since 2.0
Silverlight
Available since 4.0
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