[WebMethod]
public int DoSomeWork(int TimeSpan)
{
System.Threading.Thread.Sleep(TimeSpan);
Random rand=new Random();
return rand.Next(100,1000);
}
****************************************************************
using System.Windows.Forms;
using System.Data;
namespace WindowsTest
{
/// <summary>
/// Form1 的摘要说明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Button button1;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.Button button5;
/// <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.button1 = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.button4 = new System.Windows.Forms.Button();
this.button5 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(128, 64);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(96, 32);
this.button1.TabIndex = 0;
this.button1.Text = "同 步";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// textBox1
//
this.textBox1.Location = new System.Drawing.Point(104, 16);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(96, 21);
this.textBox1.TabIndex = 1;
this.textBox1.Text = "1000";
//
// button2
//
this.button2.Location = new System.Drawing.Point(128, 120);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(96, 32);
this.button2.TabIndex = 0;
this.button2.Text = "异 步";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// button3
//
this.button3.Location = new System.Drawing.Point(128, 168);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(96, 32);
this.button3.TabIndex = 0;
this.button3.Text = "线 程";
this.button3.Click += new System.EventHandler(this.button3_Click);
//
// button4
//
this.button4.Location = new System.Drawing.Point(248, 120);
this.button4.Name = "button4";
this.button4.Size = new System.Drawing.Size(96, 32);
this.button4.TabIndex = 0;
this.button4.Text = "等待异步";
this.button4.Click += new System.EventHandler(this.button4_Click);
//
// button5
//
this.button5.Location = new System.Drawing.Point(16, 120);
this.button5.Name = "button5";
this.button5.Size = new System.Drawing.Size(96, 32);
this.button5.TabIndex = 0;
this.button5.Text = "另一种异步";
this.button5.Click += new System.EventHandler(this.button5_Click);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(392, 222);
this.Controls.Add(this.textBox1);
this.Controls.Add(this.button1);
this.Controls.Add(this.button2);
this.Controls.Add(this.button3);
this.Controls.Add(this.button4);
this.Controls.Add(this.button5);
this.Name = "Form1";
this.Text = "改进后异步";
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 void Form1_Load(object sender, System.EventArgs e)
{
}
//*********************************同步
private void button1_Click(object sender, System.EventArgs e)
{
index.index ind=new WindowsTest.index.index();
MessageBox.Show(ind.DoSomeWork(int.Parse(textBox1.Text)).ToString(),"同步调用",MessageBoxButtons.OK,MessageBoxIcon.Question);
}
//*******************************异步
private delegate int DelegateFun(int Time);
private void button2_Click(object sender, System.EventArgs e)
{
index.index call=new WindowsTest.index.index();
System.AsyncCallback AsyncCallback=new AsyncCallback(this.MyCallBack);//异步操作完成时调用方法
DelegateFun AsyncDelegate=new DelegateFun(call.DoSomeWork);
System.IAsyncResult AsyncResult;//异步操作作态
AsyncResult=AsyncDelegate.BeginInvoke (int.Parse(textBox1.Text),AsyncCallback,null);//异步开始调用
}
private void MyCallBack(System.IAsyncResult ar)//ar异步操作状态
{
DelegateFun AsyncDelegate;
System.Runtime.Remoting.Messaging.AsyncResult AsyncResult;//异步操作结果
int ReturnValue;
AsyncResult=(System.Runtime.Remoting.Messaging.AsyncResult)ar;
AsyncDelegate=(DelegateFun)AsyncResult.AsyncDelegate;//获取委托对象
ReturnValue=AsyncDelegate.EndInvoke(AsyncResult);//实际调用
MessageBox.Show(ReturnValue.ToString());
}
//***************************************改进型异步
private index.index callTo=new WindowsTest.index.index();
private void button5_Click(object sender, System.EventArgs e)
{
System.AsyncCallback AsyncCallback=new AsyncCallback(this.MyCallBack1);//异步操作完成时调用方法
callTo.BeginDoSomeWork(int.Parse(textBox1.Text),AsyncCallback,null);
}
private void MyCallBack1(System.IAsyncResult ar)//ar异步操作状态
{
int ReturnValue;
ReturnValue=callTo.EndDoSomeWork(ar);//实际调用
MessageBox.Show("改进型异步调用---Result："+ReturnValue.ToString());
}
//***********************************等待异步
private void button4_Click(object sender, System.EventArgs e)
{
index.index call=new WindowsTest.index.index();
System.IAsyncResult ar=call.BeginDoSomeWork(int.Parse(textBox1.Text),null,null);
ar.AsyncWaitHandle.WaitOne();
MessageBox.Show("等待型异步调用---Result："+call.EndDoSomeWork(ar).ToString());
}
//***********************************线程
private void button3_Click(object sender, System.EventArgs e)
{
System.Threading.Thread thread=new System.Threading.Thread(new System.Threading.ThreadStart(this.ThreadCall));
thread.Start();
}
private void ThreadCall()
{
index.index ind=new WindowsTest.index.index();
MessageBox.Show(ind.DoSomeWork(int.Parse(textBox1.Text)).ToString(),"线程同步调用",MessageBoxButtons.OK,MessageBoxIcon.Question);
}
}
}
