谁能提供一个C# 异步文件读写的显示进度条的实例

Question

如题：  谁能提供一个C# 异步文件读写的显示进度条的实例。在做这个的时候遇到点小问题。。

Answer 1

用 BackgroundWorker 控件做，什么都满足了，一点问题没有应该是吧

Answer 2

 private void Form1_Load(object sender, EventArgs e)
        {
            DirectoryInfo dirInfo = new DirectoryInfo(@"C:\WINDOWS");
            
           backgroundWorker1.RunWorkerAsync(dirInfo);           
        }       
        private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
        {
            DirectoryInfo dirInfo = e.Argument as DirectoryInfo;            FileInfo[] fileArray =dirInfo.GetFiles();
            int intTotalCount = fileArray.Length;
       
            int intFileRead = 0;
            foreach (FileInfo file in fileArray)
            {
                System.Threading.Thread.Sleep(10);//方面看到效果
                intFileRead++;
                if(intFileRead<100)//这个暂时这样写。
                    backgroundWorker1.ReportProgress(intFileRead);
            }        }        private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {            progressBar1.Value = e.ProgressPercentage;
            
        }

Answer 3

到MSDN，或去官网下载该控件，好像MS提供了这种控件

Answer 4

用progressbar+backgroundworker实现 自己Google一下一大堆 

Answer 5

string path = "D:\\TDDOWNLOAD\\AdobePhotoshopCS3.rar";            
            FileStream file = new FileStream(path, FileMode.Open, FileAccess.Read);  
            BinaryReader binaryreader = new BinaryReader(file);
            byte[] b = new byte[4098];
            int data = 0; ;
            int bodylenght = (int)file.Length;
            int uoi = 0;
            this.progressBar1.Maximum = bodylenght;            while ((data = binaryreader.Read(b, 0,4098)) != 0)      //这个注意是将文件写成流的形式
            {
                uoi = uoi + 4098;
               
                if (uoi >= bodylenght)
                    this.progressBar1.Value = bodylenght;
                else
                    this.progressBar1.Value = uoi;
            }
            this.label1.Text = uoi.ToString();
    
            binaryreader.Close();
            file.Close();