"C # uses the background to dynamically load data" Winform "anti-interface card dead" "BackgroundWorker" class

Using System.ComponentModel

Direct use of the Egprogressbar method

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BackgroundWorker Bw = new BackgroundWorker();  ListView listView1 = new ListView();  public void EgProgressBar()  {      DirectoryInfo di = new DirectoryInfo(@"C:/Windows");      FileInfo[] fi = di.GetFiles();      progressBar1.Maximum = fi.Length - 1; //设置进度条的最大值      Bw.WorkerSupportsCancellation = true;      Bw.WorkerReportsProgress = true;      Bw.DoWork += new DoWorkEventHandler(Add); //绑定事件      Bw.ProgressChanged += new ProgressChangedEventHandler(Progress);      Bw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(End);      Bw.RunWorkerAsync();  }  public void Add(object sender, DoWorkEventArgs e)  {             DirectoryInfo di = new DirectoryInfo(@"C:/Windows");      foreach (FileInfo item in di.GetFiles())      {          ListViewItem lvt = new ListViewItem();//用listviewItem来存储获取到文件的信息          lvt.Text = item.FullName;          lvt.SubItems.Add(DateTime.Now.ToLongTimeString());          Thread.Sleep(500);                   Bw.ReportProgress(listView1.Items.Count, lvt);//把当前的进度报告出去，获取到第几个文件和该文件的信息      }  }  public void Progress(object sender, ProgressChangedEventArgs e)  {      progressBar1.Value = e.ProgressPercentage;//获取第几个文件，用来改变进度条的进度      ListViewItem lv = e.UserState as ListViewItem;      listView1.Items.Add(lv);//把最新获取到的文件信息添加到listview  }  public void End(object sender, RunWorkerCompletedEventArgs e)  {       progressBar1.Value = 0;//进度条清0  }

Pass-through method parameter RunWorkerAsync (parameter)

Get the e.argument of method DoWorkEventArgs

at the end of the decision DoWork method E.result automatic ? passed into the e.result of completed

From for notes (Wiz)

"C # uses the background to dynamically load data" Winform "anti-interface card dead" "BackgroundWorker" class