form1.cs

Csharp实例编程百例.rar

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


namespace UseThreadApp
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.ToolBar toolBar1;
		private System.Windows.Forms.ToolBarButton toolBarButton1;
		private System.Windows.Forms.ToolBarButton toolBarButton2;
		private System.Windows.Forms.ToolBarButton toolBarButton3;
		private System.Windows.Forms.ToolBarButton toolBarButton4;
		/// <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 Form Designer generated code
		/// <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.toolBar1 = new System.Windows.Forms.ToolBar();
			this.toolBarButton1 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton2 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton3 = new System.Windows.Forms.ToolBarButton();
			this.toolBarButton4 = new System.Windows.Forms.ToolBarButton();
			this.SuspendLayout();
			// 
			// toolBar1
			// 
			this.toolBar1.Buttons.AddRange(new System.Windows.Forms.ToolBarButton[] {
																						this.toolBarButton1,
																						this.toolBarButton2,
																						this.toolBarButton3,
																						this.toolBarButton4});
			this.toolBar1.DropDownArrows = true;
			this.toolBar1.Name = "toolBar1";
			this.toolBar1.ShowToolTips = true;
			this.toolBar1.Size = new System.Drawing.Size(304, 38);
			this.toolBar1.TabIndex = 1;
			this.toolBar1.ButtonClick += new System.Windows.Forms.ToolBarButtonClickEventHandler(this.toolBar1_ButtonClick);
			// 
			// toolBarButton1
			// 
			this.toolBarButton1.Text = "Start";
			// 
			// toolBarButton2
			// 
			this.toolBarButton2.Text = "Sleep";
			// 
			// toolBarButton3
			// 
			this.toolBarButton3.Text = "Suspend";
			// 
			// toolBarButton4
			// 
			this.toolBarButton4.Text = "Abort";
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(304, 157);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.toolBar1});
			this.Name = "Form1";
			this.Text = "UseThreadingApp";
			this.Load += new System.EventHandler(this.Form1_Load);
			this.ResumeLayout(false);

		}
		#endregion

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

		private Thread calcThread;	//声明一个线程
		private Form2 calcForm;		//一个Form2窗体

		private void toolBar1_ButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e)
		{
			switch (toolBar1.Buttons .IndexOf (e.Button ))
			{
				case 0:
					if (calcThread==null)
					{
						calcForm.Show ();
						//把线程实例化，并设置优先级
						calcThread = new Thread (new ThreadStart (calcForm.MyCalculate));
						calcThread.Priority = ThreadPriority.Normal;
						//启动线程
						calcThread.Start ();
					}
					break;
				case 1:
					//当前线程休眠10秒
					Thread.Sleep (10*1000);
					break;
				case 2:
					if (calcThread.ThreadState == ThreadState.Running )
					{	//挂起线程
						calcThread.Suspend ();
						e.Button .Text = "Resume";
					}
					else if (calcThread.ThreadState == ThreadState.Suspended )
					{	//继续线程
						calcThread.Resume ();
						e.Button .Text = "Suspend";
					}
					break;
				case 3:
					if (calcThread.IsAlive )
					{	//终止线程
						calcThread.Abort ();
						calcForm.Hide ();
					}
					break;
			}
		}



		private void Form1_Load(object sender, System.EventArgs e)
		{	//初始化Form2实例，并隐藏起来
			calcForm = new Form2 ();
			calcForm.Hide ();
		}
	}
}