C#多线程显示运行状态

Copy大文件或者网络访问的时候处理假死。那就用多线程加个进度条(只显示运行，没有进度)来表示状态运行吧。好了，废话少说，上个例子。先看结果图：
点击Button，运行一个数据累加器，textBox显示每次运行的结果，ProgressBar表示运行的状态。
好了，直接贴代码：
 
       01 
        using System;   
      
       02 
        using System.Collections.Generic;   
      
       03 
        using System.ComponentModel;   
      
       04 
        using System.Data;   
      
       05 
        using System.Drawing;   
      
       06 
        using System.Linq;   
      
       07 
        using System.Text;   
      
       08 
        using System.Windows.Forms;   
      
       09 
        using System.Threading;   
      
       10 
           
       11 
        namespace Testpro   
      
       12 
        
       13 
            public partial class Form1 : Form   
      
       14 
              
       15 
                BackgroundWorker work = new BackgroundWorker();   
      
       16 
                public Form1()   
      
       17 
                  
       18 
                    InitializeComponent();   
      
       19 
                    work.WorkerReportsProgress = true  
      
       20 
                    work.DoWork += Count;   
      
       21 
                    work.RunWorkerCompleted += completeRun;   
      
       22 
                    Control.CheckForIllegalCrossThreadCalls = false  
      
       23 
                    this.textBox1.ScrollBars = ScrollBars.Both;   
      
       24 
                  
       25 
           
       26 
                private void button1_Click(object sender, EventArgs e)   
      
       27 
                  
       28 
                    this.progressBar1.Style = ProgressBarStyle.Marquee;   
      
       29 
                       
       30 
                    work.RunWorkerAsync();   
      
       31 
                  
       32 
           
       33 
                private void Count(object sender, DoWorkEventArgs e)   
      
       34 
                {               
      
       35 
                    float num = 0.0f;   
      
       36 
                    int cun = 0;   
      
       37 
                    while (num < 5000)   
      
       38 
                      
       39 
                        cun++;   
      
       40 
                        num += 4f;                 
      
       41 
                       this.textBox1.Text += num.ToString() + "\t" + e.Result;   
      
       42 
                       if (cun == 9)   
      
       43 
                         
       44 
                           textBox1.Text += Environment.NewLine;   
      
       45 
                           cun = 0;   
      
       46 
                         
       47 
                    }               
      
       48 
                  
       49 
           
       50 
                public  void SetText(object num)   
      
       51 
                  
       52 
                    textBox1.Text += num.ToString() + "\n"  
      
       53 
                  
       54 
           
       55 
                private void completeRun(object sender,  RunWorkerCompletedEventArgs e)   
      
       56 
                  
       57 
                    this.progressBar1.Style = ProgressBarStyle.Blocks;   
      
       58 
                       
       59 
                    this.textBox1.Text += "complete"  
      
       60 
                    MessageBox.Show("Running complete.....");   
      
       61 
                }          
      
       62 
              
       63 
       }
C#多线程显示运行状态

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