.NET Framework 类库
XmlReader 类
表示提供对 XML 数据进行快速、非缓存、只进访问的读取器，即 对 XML 数据流的只进只读访问。XmlReader 类符合 W3C 可扩展标记语言 (XML) 1.0 和“XML 中的命名空间”建议。
1.实例：读取XML内容
page页面代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title>Untitled Page</title></head><body> <form id="form1" runat="server"> <div style="400px; border:solid 1px #000; background-color:#8ABBDF; color:White;"> <asp:Label ID="mEmployeesLabel" runat="server" Text=""></asp:Label> </div> </form></body></html>2.读取XML内容的代码
protected void Page_Load(object sender, EventArgs e) {
string employeeID = ""; string xmlFilePath = Request.PhysicalApplicationPath + @"\Employees.xml"; try
{
using (XmlReader reader = XmlReader.Create(xmlFilePath)) { this.mEmployeesLabel.Text = "<b>Employees</b>"; this.mEmployeesLabel.Text += "<ul>"; while (reader.Read()) { if (reader.NodeType == XmlNodeType.Element) { if (reader.Name == "employee") { employeeID = reader.GetAttribute("id");
} if (reader.Name == "name") { this.mEmployeesLabel.Text += "<li>" + "Employee-" + employeeID; this.mEmployeesLabel.Text += "<ul>"; this.mEmployeesLabel.Text += "<li>ID-" + employeeID + "</li>"; } if (reader.Name == "firstName") { this.mEmployeesLabel.Text += "<li>First Name-" + reader.ReadString() + "</li>"; } if (reader.Name == "lastName") { this.mEmployeesLabel.Text += "<li>Last Name-" + reader.ReadString() + "</li>"; } if (reader.Name == "city") { this.mEmployeesLabel.Text += "<li>City-" + reader.ReadString() + "</li>"; } if (reader.Name == "state") { this.mEmployeesLabel.Text += "<li>state-" + reader.ReadString() + "</li>"; } if (reader.Name == "zipCode") { this.mEmployeesLabel.Text += "<li>state-" + reader.ReadElementContentAsInt() + "</li>"; } } else if (reader.NodeType == XmlNodeType.EndElement) { if (reader.Name == "employee") { this.mEmployeesLabel.Text += "</ul>"; this.mEmployeesLabel.Text += "</li>"; } } } this.mEmployeesLabel.Text += "</ul>"; } } catch (Exception ex) { this.mEmployeesLabel.Text = "An Exception occured:" + ex.Message; }
}3.效果如下：
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