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   源码介绍

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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Diagnostics;

namespace Log
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.GroupBox groupBox1;
		private System.Windows.Forms.ListView listView1;
		private System.Windows.Forms.ColumnHeader columnHeader1;
		private System.Windows.Forms.ColumnHeader columnHeader2;
		private System.Windows.Forms.ColumnHeader columnHeader3;
		private System.Windows.Forms.ColumnHeader columnHeader4;
		private System.Windows.Forms.ColumnHeader columnHeader5;
		private System.Windows.Forms.ColumnHeader columnHeader6;
		private System.Windows.Forms.ColumnHeader columnHeader7;
		private System.Windows.Forms.ColumnHeader columnHeader8;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Button button3;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			this.groupBox1 = new System.Windows.Forms.GroupBox();
			this.listView1 = new System.Windows.Forms.ListView();
			this.columnHeader1 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader2 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader3 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader4 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader5 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader6 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader7 = new System.Windows.Forms.ColumnHeader();
			this.columnHeader8 = new System.Windows.Forms.ColumnHeader();
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.button3 = new System.Windows.Forms.Button();
			this.groupBox1.SuspendLayout();
			this.SuspendLayout();
			// 
			// groupBox1
			// 
			this.groupBox1.Controls.Add(this.listView1);
			this.groupBox1.Location = new System.Drawing.Point(8, 8);
			this.groupBox1.Name = "groupBox1";
			this.groupBox1.Size = new System.Drawing.Size(368, 208);
			this.groupBox1.TabIndex = 0;
			this.groupBox1.TabStop = false;
			this.groupBox1.Text = "显示系统日志";
			// 
			// listView1
			// 
			this.listView1.Columns.AddRange(new System.Windows.Forms.ColumnHeader[] {
																						this.columnHeader1,
																						this.columnHeader2,
																						this.columnHeader3,
																						this.columnHeader4,
																						this.columnHeader5,
																						this.columnHeader6,
																						this.columnHeader7,
																						this.columnHeader8});
			this.listView1.FullRowSelect = true;
			this.listView1.GridLines = true;
			this.listView1.Location = new System.Drawing.Point(8, 16);
			this.listView1.MultiSelect = false;
			this.listView1.Name = "listView1";
			this.listView1.Size = new System.Drawing.Size(352, 184);
			this.listView1.TabIndex = 1;
			this.listView1.View = System.Windows.Forms.View.Details;
			// 
			// columnHeader1
			// 
			this.columnHeader1.Text = "类型";
			// 
			// columnHeader2
			// 
			this.columnHeader2.Text = "日期";
			// 
			// columnHeader3
			// 
			this.columnHeader3.Text = "时间";
			// 
			// columnHeader4
			// 
			this.columnHeader4.Text = "来源";
			// 
			// columnHeader5
			// 
			this.columnHeader5.Text = "分类";
			// 
			// columnHeader6
			// 
			this.columnHeader6.Text = "事件";
			// 
			// columnHeader7
			// 
			this.columnHeader7.Text = "用户";
			// 
			// columnHeader8
			// 
			this.columnHeader8.Text = "计算机";
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(8, 224);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(128, 23);
			this.button1.TabIndex = 1;
			this.button1.Text = "显示应用程序日志";
			this.button1.Click  = new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(136, 224);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(120, 23);
			this.button2.TabIndex = 2;
			this.button2.Text = "显示安全性日志";
			this.button2.Click  = new System.EventHandler(this.button2_Click);
			// 
			// button3
			// 
			this.button3.Location = new System.Drawing.Point(256, 224);
			this.button3.Name = "button3";
			this.button3.Size = new System.Drawing.Size(120, 23);
			this.button3.TabIndex = 3;
			this.button3.Text = "显示系统日志";
			this.button3.Click  = new System.EventHandler(this.button3_Click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(384, 254);
			this.Controls.Add(this.button3);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.groupBox1);
			this.MaximizeBox = false;
			this.Name = "Form1";
			this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
			this.Text = "演示制作日志查看器";
			this.Load  = new System.EventHandler(this.Form1_Load);
			this.groupBox1.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void button3_Click(object sender, System.EventArgs e)
		{//显示系统事件日志
			this.listView1.Items.Clear();		  
			//构造一个日志对象
			EventLog  MySystemEvent=new EventLog();
			//说明这个日志是系统日志
			MySystemEvent.Log="System";
			//获得日志的记录集合
			EventLogEntryCollection MyEventCollection=MySystemEvent.Entries;
			//记录的长度
			int Count=MyEventCollection.Count;
			this.groupBox1.Text="显示系统日志(共" Count.ToString() ")个事件";			
			for (int i=0;i<Count;i  )
			{
				EventLogEntry MyEntry=MyEventCollection[Count-i-1];
				string[] SubItems={ MyEntry.EntryType.ToString(),
									MyEntry.TimeGenerated.ToLongDateString(),
									MyEntry.TimeGenerated.ToLongTimeString(),
									MyEntry.Source,
									MyEntry.Category,
									MyEntry.EventID.ToString(),
									MyEntry.UserName,
									MyEntry.MachineName
								  };
				ListViewItem  MyItem=new ListViewItem(SubItems);
				this.listView1.Items.Add(MyItem);			
			}
		}

		private void button2_Click(object sender, System.EventArgs e)
		{//显示安全性事件日志
			this.listView1.Items.Clear();		  
			//构造一个日志对象
			EventLog  MySystemEvent=new EventLog();
			//说明这个日志是安全性日志
			MySystemEvent.Log="Security";
			//获得日志的记录集合
			EventLogEntryCollection MyEventCollection=MySystemEvent.Entries;
			//记录的长度
			int Count=MyEventCollection.Count;
			this.groupBox1.Text="显示安全性日志(共" Count.ToString() ")个事件";			
			for (int i=0;i<Count;i  )
			{
				EventLogEntry MyEntry=MyEventCollection[Count-i-1];
				string[] SubItems={ MyEntry.EntryType.ToString(),
									  MyEntry.TimeGenerated.ToLongDateString(),
									  MyEntry.TimeGenerated.ToLongTimeString(),
									  MyEntry.Source,
									  MyEntry.Category,
									  MyEntry.EventID.ToString(),
									  MyEntry.UserName,
									  MyEntry.MachineName
								  };
				ListViewItem  MyItem=new ListViewItem(SubItems);
				this.listView1.Items.Add(MyItem);			
			}		
		}

		private void button1_Click(object sender, System.EventArgs e)
		{//显示应用程序事件日志
			this.listView1.Items.Clear();		  
			//构造一个日志对象
			EventLog  MySystemEvent=new EventLog();
			//说明这个日志是应用程序日志
			MySystemEvent.Log="Application";
			//获得日志的记录集合
			EventLogEntryCollection MyEventCollection=MySystemEvent.Entries;
			//记录的长度
			int Count=MyEventCollection.Count;
			this.groupBox1.Text="显示应用程序日志(共" Count.ToString() ")个事件";			
			for (int i=0;i<Count;i  )
			{
				EventLogEntry MyEntry=MyEventCollection[Count-i-1];
				string[] SubItems={ MyEntry.EntryType.ToString(),
									  MyEntry.TimeGenerated.ToLongDateString(),
									  MyEntry.TimeGenerated.ToLongTimeString(),
									  MyEntry.Source,
									  MyEntry.Category,
									  MyEntry.EventID.ToString(),
									  MyEntry.UserName,
									  MyEntry.MachineName
								  };
				ListViewItem  MyItem=new ListViewItem(SubItems);
				this.listView1.Items.Add(MyItem);			
			}				
		}

		private void Form1_Load(object sender, System.EventArgs e)
		{//装入系统日志
			button3_Click(null,null);	
		}
	}
}