作法:轉換節點片段
當您轉換包含於 XmlDocument 或 XPathDocument 物件的資料時,XSLT 轉換會套用至整個文件。 換言之,如果您要傳入的節點不是文件的根節點,則不會阻止轉換程序取得已載入文件中的所有節點。 若要轉換節點片段,您必須建立僅含有該節點片段的單獨物件,再將該物件傳遞至 Transform 方法。
程序
轉換節點片段
建立包含來源文件的物件。
尋找要轉換的節點片段。
建立僅具有該節點片段的單獨物件。
將該節點片段傳遞至 Transform 方法。
範例
下列範例會轉換節點片段,並將結果輸出至主控台。
// Load an XPathDocument.
XPathDocument doc = new XPathDocument("books.xml");
// Locate the node fragment.
XPathNavigator nav = doc.CreateNavigator();
XPathNavigator myBook = nav.SelectSingleNode("descendant::book[@ISBN = '0-201-63361-2']");
// Create a new object with just the node fragment.
XmlReader reader = myBook.ReadSubtree();
reader.MoveToContent();
// Load the style sheet.
XslCompiledTransform xslt = new XslCompiledTransform();
xslt.Load("single.xsl");
// Transform the node fragment.
xslt.Transform(reader, XmlWriter.Create(Console.Out, xslt.OutputSettings));
' Load an XPathDocument.
Dim doc As XPathDocument = New XPathDocument("books.xml")
' Locate the node fragment.
Dim nav As XPathNavigator = doc.CreateNavigator()
Dim myBook As XPathNavigator = nav.SelectSingleNode("descendant::book[@ISBN = '0-201-63361-2']")
' Create a new object with just the node fragment.
Dim reader As XmlReader = myBook.ReadSubtree()
reader.MoveToContent()
' Load the style sheet.
Dim xslt As XslCompiledTransform = New XslCompiledTransform()
xslt.Load("single.xsl")
' Transform the node fragment.
xslt.Transform(reader, XmlWriter.Create(Console.Out, xslt.OutputSettings))
輸入
books.xml
<bookstore>
<book genre="autobiography" publicationdate="1981" 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" 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" ISBN="1-861001-57-6">
<title>The Gorgias</title>
<author>
<name>Plato</name>
</author>
<price>9.99</price>
</book>
</bookstore>
single.xsl
<stylesheet version="1.0" xmlns="http://www.w3.org/1999/XSL/Transform" >
<output method="text" />
<template match="/">
Book title is <value-of select="//title" />
</template>
</stylesheet>
輸出
書名為《The Confidence Man》。