C＃使用sevenzipsharp进行解压缩并更新无UI冻结的进度栏

Question

我在解压文件时遇到了一些问题。一切正常进展条输出和提取。但是当它运行时，UI会冻结。我尝试过使用Task.Run()，但是它并不能很好地处理进度条。或者，也许我只是没有正确使用它。

有什么建议吗？

private void unzip(string path) 
{ 
    this.progressBar1.Minimum = 0; 
    this.progressBar1.Maximum = 100; 
    progressBar1.Value = 0; 
    this.progressBar1.Visible = true; 
    var sevenZipPath = Path.Combine(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), Environment.Is64BitProcess ? "x64" : "x86", "7z.dll"); 
    SevenZipBase.SetLibraryPath(sevenZipPath); 

    var file = new SevenZipExtractor(path + @"\temp.zip"); 
    file.Extracting += (sender, args) => 
     { 
      this.progressBar1.Value = args.PercentDone; 
     }; 
    file.ExtractionFinished += (sender, args) => 
     { 
      // Do stuff when done 
     }; 


    //Extract the stuff 
    file.ExtractArchive(path); 
} 

Answer 1

你可能想看看在.NET Framework中的Progress<T>对象 - 它简化了添加进展跨线程报告。 Here is a good blog article comparing BackgroundWorker vs Task.Run()。看看他在Task.Run()例子中如何使用Progress<T>。

更新 - 以下是它如何查找您的示例。我希望这会给你足够的理解，以便将来能够使用Progress<T>类型。 ：d

private void unzip(string path) 
{ 
    progressBar1.Minimum = 0; 
    progressBar1.Maximum = 100; 
    progressBar1.Value = 0; 
    progressBar1.Visible = true; 

    var progressHandler = new Progress<byte>(
     percentDone => progressBar1.Value = percentDone); 
    var progress = progressHandler as IProgress<byte>; 

    Task.Run(() => 
    { 
     var sevenZipPath = Path.Combine(
      Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), 
      Environment.Is64BitProcess ? "x64" : "x86", "7z.dll"); 

     SevenZipBase.SetLibraryPath(sevenZipPath); 


     var file = new SevenZipExtractor(path); 
     file.Extracting += (sender, args) => 
     { 
      progress.Report(args.PercentDone); 
     }; 
     file.ExtractionFinished += (sender, args) => 
     { 
      // Do stuff when done 
     }; 

     //Extract the stuff 
     file.ExtractArchive(Path.GetDirectoryName(path)); 
    }); 
}