行動<>，等待一個額外的動作來完成

here it is: 

     Action<int, ProgressBar, Label, Label, int, Button> downloadFileAsync = (i, pb, label2, label1, ServID, button1) => 
    { 
     var bd = AppDomain.CurrentDomain.BaseDirectory; 
     var fn = bd + "/" + i + ".7z"; 
     var down = new WebClient(); 
     DownloadProgressChangedEventHandler dpc = (s, e) => 
     { 
      label1.Text = "Download Update: " + i + " From: " + ServID; 
      int rec =Convert.ToInt16(e.BytesReceived/1024); 
      int total =Convert.ToInt16(e.TotalBytesToReceive/1024) ; 
      label2.Text = "Downloaded: " + rec.ToString() + "/" + total.ToString() + " KB"; 
      pb.Value = e.ProgressPercentage; 
     }; 
     AsyncCompletedEventHandler dfc = null; dfc = (s, e) => 
     { 
      down.DownloadProgressChanged -= dpc; 
      down.DownloadFileCompleted -= dfc; 
      CompressionEngine.Current.Decoder.DecodeIntoDirectory(AppDomain.CurrentDomain.BaseDirectory + "/" + i + ".7z", AppDomain.CurrentDomain.BaseDirectory); 
      File.Delete(fn); 
       if (i == ServID) 
       { 

        button1.Enabled = true; 
        label1.Text = "Game Is Up-To-Date.Have Fun!!"; 
        label2.Text = "Done.."; 
       } 
     down.Dispose(); 
     };

現在我唯一的問題是，當程序解壓下載的文件行動<>，等待一個額外的動作來完成

CompressionEngine.Current.Decoder.DecodeIntoDirectory(AppDomain.CurrentDomain.BaseDirectory + "/" + i + ".7z", AppDomain.CurrentDomain.BaseDirectory);

在一些文件，它需要時間來解壓下載的文件所以我如何告訴程序等待解壓縮完成？（我使用BackgroundWorker）

來源

2012-12-02 Daniel Bublil

工作完成時，後臺工作引發的事件。您是否嘗試過將事件處理程序附加到該事件？ –

是的，我做到了。問題是背景工作者在curret文件下載完成之前完成 –