XPathNavigator.ReplaceRange(XPathNavigator) 方法
定义
重要
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替换从当前节点到指定节点的同级节点范围。
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.XmlWriterPublic Overridable Function ReplaceRange (lastSiblingToReplace As XPathNavigator) As XmlWriter参数
- lastSiblingToReplace
- XPathNavigator
定位在要替换的范围中的最后一个 XPathNavigator 同级节点上。
返回
用于 XmlWriter 指定替换范围的对象。
例外
指定的 XPathNavigator 是 null。
不支持 XPathNavigator 编辑。
要替换的最后一个节点不是当前节点的有效同级节点。
示例
在以下示例中，使用该方法将文件的第一个和第二 book 个元素 contosoBooks.xml 替换为新的空 book 元素 ReplaceRange 。
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)
该示例将 contosoBooks.xml 文件作为输入。
<?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>
注解
该方法 ReplaceRange 将当前节点 XPathNavigator 中的一系列同级节点替换为由参数（非独占）指定的 XPathNavigator 节点（非独占）。
