XPathNavigator.ReplaceRange(XPathNavigator) Método

Definição

Substitui um intervalo de nós irmão, do nó atual ao nó especificado.Replaces a range of sibling nodes from the current node to the node specified.

public:
 virtual System::Xml::XmlWriter ^ ReplaceRange(System::Xml::XPath::XPathNavigator ^ lastSiblingToReplace);
public virtual System.Xml.XmlWriter ReplaceRange (System.Xml.XPath.XPathNavigator lastSiblingToReplace);
abstract member ReplaceRange : System.Xml.XPath.XPathNavigator -> System.Xml.XmlWriter
override this.ReplaceRange : System.Xml.XPath.XPathNavigator -> System.Xml.XmlWriter
Public Overridable Function ReplaceRange (lastSiblingToReplace As XPathNavigator) As XmlWriter

Parâmetros

lastSiblingToReplace
XPathNavigator

Um XPathNavigator posicionado no último nó irmão no intervalo a ser substituído.An XPathNavigator positioned on the last sibling node in the range to replace.

Retornos

XmlWriter

Um objeto XmlWriter usado para especificar o intervalo de substituição.An XmlWriter object used to specify the replacement range.

Exceções

O XPathNavigator especificado é null.The XPathNavigator specified is null.

O XPathNavigator não dá suporte à edição.The XPathNavigator does not support editing.

O último nó especificado a ser substituído não é um nó irmão válido do nó atual.The last node to replace specified is not a valid sibling node of the current node.

Exemplos

No exemplo a seguir, o primeiro e o segundo book elementos do contosoBooks.xml arquivo são substituídos por um novo book elemento vazio usando o ReplaceRange método.In the following example, the first and second book elements of the contosoBooks.xml file are replaced with a new empty book element using the ReplaceRange method.

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);
XmlWriter^ newRange = navigator->ReplaceRange(last);
newRange->WriteStartElement("book");
    newRange->WriteAttributeString("genre", "");
    newRange->WriteAttributeString("publicationdate", "2005-04-07");
    newRange->WriteAttributeString("ISBN", "0");
    newRange->WriteStartElement("title");
        newRange->WriteString("New Book");
    newRange->WriteEndElement();
    newRange->WriteStartElement("author");
        newRange->WriteStartElement("first-name");
            newRange->WriteString("First Name");
        newRange->WriteEndElement();
        newRange->WriteStartElement("last-name");
            newRange->WriteString("Last Name");
        newRange->WriteEndElement();
    newRange->WriteEndElement();
    newRange->WriteElementString("price", "$0.00");
newRange->WriteEndElement();
newRange->Close();
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);
XmlWriter newRange = navigator.ReplaceRange(last);
newRange.WriteStartElement("book");
newRange.WriteAttributeString("genre", "");
newRange.WriteAttributeString("publicationdate", "2005-04-07");
newRange.WriteAttributeString("ISBN", "0");
newRange.WriteStartElement("title");
newRange.WriteString("New Book");
newRange.WriteEndElement();
newRange.WriteStartElement("author");
newRange.WriteStartElement("first-name");
newRange.WriteString("First Name");
newRange.WriteEndElement();
newRange.WriteStartElement("last-name");
newRange.WriteString("Last Name");
newRange.WriteEndElement();
newRange.WriteEndElement();
newRange.WriteElementString("price", "$0.00");
newRange.WriteEndElement();
newRange.Close();
Console.WriteLine(navigator.OuterXml);
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)
Dim newRange As XmlWriter = navigator.ReplaceRange(last)
newRange.WriteStartElement("book")
newRange.WriteAttributeString("genre", "")
newRange.WriteAttributeString("publicationdate", "2005-04-07")
newRange.WriteAttributeString("ISBN", "0")
newRange.WriteStartElement("title")
newRange.WriteString("New Book")
newRange.WriteEndElement()
newRange.WriteStartElement("author")
newRange.WriteStartElement("first-name")
newRange.WriteString("First Name")
newRange.WriteEndElement()
newRange.WriteStartElement("last-name")
newRange.WriteString("Last Name")
newRange.WriteEndElement()
newRange.WriteEndElement()
newRange.WriteElementString("price", "$0.00")
newRange.WriteEndElement()
newRange.Close()
Console.WriteLine(navigator.OuterXml)

O exemplo usa o arquivo contosoBooks.xml como entrada.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>  

Comentários

O ReplaceRange método substitui um intervalo de nós irmãos do nó atual no XPathNavigator qual o está posicionado (inclusivo) para o nó especificado pelo XPathNavigator parâmetro (inclusivo).The ReplaceRange method replaces a range of sibling nodes from the current node the XPathNavigator is positioned on (inclusive) to the node specified by the XPathNavigator parameter (inclusive).

Observação

O intervalo de substituição não é inserido até que o Close método do XmlWriter objeto seja chamado.The replacement range is not inserted until the Close method of the XmlWriter object is called.

Aplica-se a