form1.cs

c#精彩编程百例（源代码）

namespace WinApp_reg4
{
    using System;
    using System.Drawing;
    using System.Collections;
    using System.ComponentModel;
    using System.WinForms;
    using System.Data;
	using Microsoft.Win32;

    /// <summary>
    ///    Summary description for Form1.
    /// </summary>
    public class Form1: System.WinForms.Form
    {
        /// <summary>
        ///    Required designer variable.
        /// </summary>
        private System.ComponentModel.Container components;
		private System.WinForms.ListBox listBox1;

        public Form1()
        {
            //
            // Required for Windows Form Designer support
            //
            InitializeComponent();

            //
            // TODO: Add any constructor code after InitializeComponent call
            //
		   RegistryKey hklm=Registry.LocalMachine;     // 定义主键
           RegistryKey software=hklm.OpenSubKey("SOFTWARE");
           RegistryKey microsoft=software.OpenSubKey("Microsoft");
           RegistryKey ads=microsoft.OpenSubKey("exchange");
           RegistryKey prov=ads.OpenSubKey("client");
           AddItem("No. Of Subkeys is  "+prov.SubKeyCount);
           AddItem(" ");
           AddItem("Client Registry Keys are:");
           String[] sProvNames=prov.GetSubKeyNames();
           foreach (string sName in sProvNames)
           {
              RegistryKey provkey=prov.OpenSubKey(sName);
              AddItem(" ");
              AddItem(sName+" ("+provkey.ValueCount.ToString()+" Values)");
              foreach (string sValName in provkey.GetValueNames())
              {
                 AddItem(" sValName: "+sValName+"  sNameVal:  "+provkey.GetValue(sValName));
              }
            }
       }

        /// <summary>
        ///    Clean up any resources being used.
        /// </summary>
        public override void Dispose()
        {
            base.Dispose();
            components.Dispose();
        }

        /// <summary>
        ///    Required method for Designer support - do not modify
        ///    the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
		{
			this.components = new System.ComponentModel.Container ();
			this.listBox1 = new System.WinForms.ListBox ();
			//@this.TrayHeight = 0;
			//@this.TrayLargeIcon = false;
			//@this.TrayAutoArrange = true;
			listBox1.Location = new System.Drawing.Point (16, 48);
			listBox1.Size = new System.Drawing.Size (408, 112);
			listBox1.TabIndex = 0;
			this.Text = "Form1";
			this.AutoScaleBaseSize = new System.Drawing.Size (6, 14);
			this.ClientSize = new System.Drawing.Size (440, 277);
			this.Controls.Add (this.listBox1);
		}
        private int iItems=0;
        public void AddItem(string sItem)
        {
         listBox1.InsertItem(iItems,sItem);
         ++iItems;
        }
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        public static void Main(string[] args) 
        {
            Application.Run(new Form1());
        }
    }
}