C#编程

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Form1.cs：源码内容
							using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using MSXML2;
namespace Wrox.ProCSharp.Xml.MSXMLTest
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.ListBox listBox1;
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;
		private DOMDocument30Class doc;
	
		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();
			//
			// TODO: Add any constructor code after InitializeComponent call
			//
		}
		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}
		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.button1 = new System.Windows.Forms.Button();
			this.listBox1 = new System.Windows.Forms.ListBox();
			this.SuspendLayout();
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(40, 256);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(200, 24);
			this.button1.TabIndex = 1;
			this.button1.Text = "Load XML";
			this.button1.Click += new System.EventHandler(this.button1_Click_1);
			// 
			// listBox1
			// 
			this.listBox1.Location = new System.Drawing.Point(24, 16);
			this.listBox1.Name = "listBox1";
			this.listBox1.Size = new System.Drawing.Size(232, 225);
			this.listBox1.TabIndex = 0;
			this.listBox1.SelectedIndexChanged += new System.EventHandler(this.listBox1_SelectedIndexChanged_1);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(288, 293);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.listBox1,
																		  this.button1});
			this.Name = "Form1";
			this.Text = "Form1";
			this.ResumeLayout(false);
		}
		#endregion
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}
		
  
		
		private void button1_Click_1(object sender, System.EventArgs e)
		{
			doc=new DOMDocument30Class();
			doc.load("..\..\..\books.xml");
			IXMLDOMNodeList nodes;
			nodes = doc.selectNodes("bookstore/book");
			IXMLDOMNode node=nodes.nextNode();
			while(node!=null)  
			{
				listBox1.Items.Add(node.attributes.getNamedItem("ISBN").text);
				node=nodes.nextNode ();
			}
		}
		private void listBox1_SelectedIndexChanged_1(object sender, System.EventArgs e)
		{
			string srch=listBox1.SelectedItem.ToString();
			IXMLDOMNode nd=doc.selectSingleNode(
				"bookstore/book[@ISBN='" + srch + "']");
			MessageBox.Show(nd.text);
		}
	}
}

						