异步编程中使用帮助类来实现Thread.Start()的示例

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading;

 namespace ConsoleApplication9
 {
     class Program
     {
         static void Main(string[] args)
         {

             // 异步调用
             // 将需传递给异步执行方法数据及委托传递给帮助器类
             ThreadWithState tws = new ThreadWithState(
                "This report displays the number {0}.",
                ,
                new ExampleCallback(ResultCallback)
             );
             Thread t = new Thread(new ThreadStart(tws.ThreadProc));
             t.Start();
             Console.ReadKey();
         }

         static void ResultCallback(int i)
         {
             Console.Write("No." + i + "\n");
         }
     }
 }

 // 包装异步方法的委托
 public delegate void ExampleCallback(int lineCount);
 // 帮助器类 

 public class ThreadWithState
 {
     private string boilerplate;
     private int value;
     private ExampleCallback callback; 

     public ThreadWithState(string text, int number,
         ExampleCallback callbackDelegate) 

     {
         boilerplate = text;
         value = number;
         callback = callbackDelegate;
     } 

     public void ThreadProc()
     {
         Console.WriteLine(boilerplate, value);
         // 异步执行完时调用回调
         if (callback != null)
             callback();
     }
 } 

运行结果：

摘自：http://www.cnblogs.com/heyuquan/archive/2012/12/16/2820775.html