Question

我在c＃中有这个简单的代码，它可以找到所有目标目录及其子文件夹，但是我的处理时我无法与GUI形式交互，我应该使用BackgroundWorker如何用这段代码实现：

  var dir = textBox1.Text = folderBrowserDialog1.SelectedPath; 
  textBox2.Text="";
  string[] extensions = { ".htm", ".html" };
  var files = Directory.EnumerateFiles(dir, "*.*",SearchOption.AllDirectories)
  .Where(s => s.EndsWith(".html") || s.EndsWith(".htm")).OrderBy(f => f);

                 foreach (string file in files)
                 { System.Diagnostics.Debug.WriteLine(file);
                   textBox2.AppendText(file+Environment.NewLine);
                 }

Answer 1

您是否阅读过此链接？注意从其他线程更新gui（使用BackgroundWorker，这通常在ProgressChanged事件处理程序中完成：https://msdn.microsoft.com/en-us/library/3s8xdz5c(v=vs.110).aspx

Answer 2

从不介意我找到了解决方案：

    void BackgroundWorker1DoWork(object sender, DoWorkEventArgs e)
    {  
          string[] extensions = { ".htm", ".html" };
          var files = Directory.EnumerateFiles(folderBrowserDialog1.SelectedPath, "*.*", SearchOption.AllDirectories)
         .Where(s => s.EndsWith(".html") || s.EndsWith(".htm")).OrderBy(f => f);


          foreach (string file in files)
           {  
            Thread.Sleep(5);
            System.Diagnostics.Debug.WriteLine(file);
              backgroundWorker1.ReportProgress(0,file+Environment.NewLine);
           }


    }
    void BackgroundWorker1ProgressChanged(object sender, ProgressChangedEventArgs e)
    {

      textBox2.AppendText(e.UserState as string);

    }

c＃使用BackgroundWorker扫描directores及其子文件夹

2 个答案: