一.寫入XML文件
2/// 寫入XML文件
3/// </summary>
4private void WriteXML()
5{
6 /// 創建一個表示所要生成的XML文件路徑的字符串。如果該路徑指向NTFS分區,則需要相關的訪問權限。
7 string filename = XMLFilePathTextBox.Text;
8
9 /// 創建一個寫入XML數據的文件流
10 System.IO.FileStream myFileStream = new System.IO.FileStream(filename, System.IO.FileMode.Create);
11
12 /// 使用文件流對象創建一個XmlTextWriter對象
13 XmlTextWriter myXmlWriter = new XmlTextWriter(myFileStream, System.Text.Encoding.Unicode);
14
15 myXmlWriter.Formatting = Formatting.Indented;
16
17 try
18 {
19 /// 使用WriteXMLbyXmlWriter方法把數據寫入XmlTextWriter對象中
20 WriteXMLbyXmlWriter(myXmlWriter, "MSFT", 74.5, 5.5, 49020000);
21
22 /// 通過Close方法的調用,XmlTextWriter對象的數據最終寫入XML文件
23 myXmlWriter.Close();
24 Page.Response.Write("生成XML文檔成功!");
25 }
26 catch
27 {
28 Page.Response.Write("生成XML文檔失敗!請檢查路徑是否正確,以及是否有寫入權限。");
29 }
30}
31
32private void WriteXMLbyXmlWriter(XmlWriter writer, string symbol, double price, double change, long volume)
33{
34 writer.WriteStartElement("Stock");
35 writer.WriteAttributeString("Symbol", symbol);
36 writer.WriteElementString("Price", XmlConvert.ToString(price));
37 writer.WriteElementString("Change", XmlConvert.ToString(change));
38 writer.WriteElementString("Volume", XmlConvert.ToString(volume));
39 writer.WriteEndElement();
40}
二.通過DOM讀取XML文件
2/// 通過DOM讀取XML文件
3/// </summary>
4private void ReadXMLbyDOM()
5{
6 /// 創建XmlDocument類的實例
7 XmlDocument doc = new XmlDocument();
8 ArrayList NodeValues = new ArrayList();
9
10 /// 把people.xml文件讀入內存,形成一個DOM結構
11 doc.Load( Server.MapPath("people.xml") );
12 XmlNode root = doc.DocumentElement;
13 foreach( XmlNode personElement in root.ChildNodes )
14 NodeValues.Add(personElement.FirstChild.Value);
15
16 XMLNodeListBox.DataSource = NodeValues;
17 XMLNodeListBox.DataBind();
18}
19
三.通過XMLReader讀取XML文件
2/// 通過XMLReader讀取XML文件
3/// </summary>
4private void ReadXMLbyXmlReader()
5{
6 ///創建XML讀取器
7 XmlTextReader reader = new XmlTextReader( Server.MapPath("students.xml") );
8 ArrayList NodeValues = new ArrayList();
9
10 while( reader.Read() )
11 {
12 if( reader.NodeType == XmlNodeType.Element && reader.Name == "NAME" )
13 {
14 reader.Read();
15 NodeValues.Add( reader.Value );
16 }
17 }
18
19 XMLNodeListBox.DataSource = NodeValues;
20 XMLNodeListBox.DataBind();
21}
四.通過Xpath讀取XML文件
2/// 通過Xpath讀取XML文件
3/// </summary>
4private void ReadXMLbyXpath()
5{
6 ///注意:需要引入System.XML.XPath命名空間
7 XPathDocument xpdoc = new XPathDocument( Server.MapPath("people.xml") );
8 XPathNavigator nav = xpdoc.CreateNavigator();
9 XPathExpression expr = nav.Compile("descendant::PEOPLE/PERSON");
10 XPathNodeIterator iterator = nav.Select(expr);
11 ArrayList NodeValues = new ArrayList();
12
13 while (iterator.MoveNext())
14 NodeValues.Add(iterator.Current.ToString());
15
16 XMLNodeListBox.DataSource = NodeValues;
17 XMLNodeListBox.DataBind();
18}
五.通過XSL顯示XML文件
2/// 通過XSL顯示XML文件
3/// </summary>
4private void DisplayXML()
5{
6 System.Xml.XmlDocument xmldoc = new System.Xml.XmlDocument();
7 xmldoc.Load(Server.MapPath("user.xml"));
8 System.Xml.Xsl.XslTransform xmltrans = new System.Xml.Xsl.XslTransform();
9 xmltrans.Load(Server.MapPath("user.xsl"));
10 Xml1.Document = xmldoc;
11 Xml1.Transform = xmltrans;
12}
六.驗證XML文件
/// 驗證XML文件
/// </summary>
private void ValidateXML()
{
FileStream stream = new FileStream(Server.MapPath("people.xml"), FileMode.Open);
///創建XmlValidatingReader類的對象
XmlValidatingReader vr = new XmlValidatingReader(stream, XmlNodeType.Element, null);
///加載XML架構文檔
vr.Schemas.Add(null, Server.MapPath("people.xsd"));
///說明驗證的方式是根據XML架構
vr.ValidationType = ValidationType.Schema;
vr.ValidationEventHandler += new ValidationEventHandler(ValidationHandler);
///對文檔進行驗證
while(vr.Read());
///顯示驗證過程完成
Page.Response.Write("<b>Validation finished!<b>");
///關閉打開的文件
stream.Close();
}
private void ValidationHandler(object sender, ValidationEventArgs args)
{
///顯示驗證失敗的消息
Page.Response.Write("<b>Validation error: </b>" + args.Message + "<p>");
}