Question

我有一个if语句，用于检查目录是否存在，是否存在，将该文件夹复制到指定位置。

整个复制过程位于预定文件夹位置的数组上，for循环遍历数组并在每个位置复制文件夹及其数据。

目前有200个不同的地方要复制，还有更多要添加。

我正在尝试围绕复制这些200多个文件夹实现进度条，但继续运行错误，我认为我遇到的问题主要是由于数组，我见过的教程（大不相同）彼此）只涵盖了基本的文件复制。

有关如何使进度条工作的任何帮助或提示将非常感激：）

for (int i = 0; i < pathArray.Length; i++)
{

   string sourcePath = pathArray[i];

   //MISSING CODE

   if (System.IO.Directory.Exists(sourcePath))
   {                   

      System.IO.Directory.CreateDirectory(targetPathProper);

      foreach (string dirPath in System.IO.Directory.GetDirectories(sourcePath,"*",
          (System.IO.SearchOption.AllDirectories)))
      {
         System.IO.Directory.CreateDirectory(dirPath.Replace(sourcePath, 
                targetPathProper));
      }

      foreach (string newPath in System.IO.Directory.GetFiles(sourcePath, "*", 
          (System.IO.SearchOption.AllDirectories)))
      {
         System.IO.File.Copy(newPath, newPath.Replace(sourcePath, 
             targetPathProper), true);
      }

   } //end if
} // end for

Answer 1

你说你得到一个错误，你得到了什么错误？

对于进度条，您可以简单地在数组中的每个基本目录处递增。没有真正需要为每个文件递增。或者，如果需要在每个文件上指示进度，则可以有两个进度条。

progressBar1.Maximum = pathArray.Length;
progressBar1.Value = 0;
for (int i = 0; i < pathArray.Length; i++)
{

   string sourcePath = pathArray[i];

   progressBar1.Value++;

   if (System.IO.Directory.Exists(sourcePath))
   {                   

      System.IO.Directory.CreateDirectory(targetPathProper);
      string[] subDirs = System.IO.Directory.GetDirectories(sourcePath,"*",(System.IO.SearchOption.AllDirectories))
      progressBar2.Maximum = subDirs.Length;
      progressBar2.Value = 0;
      foreach (string dirPath in subDirs)
      {
         progressBar2.Value++;
         System.IO.Directory.CreateDirectory(dirPath.Replace(sourcePath, 
            targetPathProper));
         Application.DoEvents();
      }

      progressBar2.Value = 0;
      foreach (string newPath in subDirs)
      {
         progressBar2.Value++;
         System.IO.File.Copy(newPath, newPath.Replace(sourcePath, 
             targetPathProper), true);
         Application.DoEvents();
      }

   } //end if
} // end for

Answer 2

string[] subDirs = 
            System.IO.Directory.GetDirectories(SourcePath, "*",
            (System.IO.SearchOption.AllDirectories));
                int subFiles = System.IO.Directory.GetFiles(SourcePath, "*.*",
         SearchOption.AllDirectories).Length;
 progressBar1.Maximum = subFiles+(subDirs.Length);
 progressBar1.Value = 0;
 foreach (string dirPath in Directory.GetDirectories(SourcePath, "*",
       SearchOption.AllDirectories))
 {
       progressBar1.Value++;
       progressBar1.PerformStep();
       Directory.CreateDirectory(dirPath.Replace(SourcePath, DestinationPath));
       Application.DoEvents();   

 }

 foreach (string newPath in Directory.GetFiles(SourcePath, "*.*",
                 SearchOption.AllDirectories))
 {
       progressBar1.Value++;
       File.Copy(newPath, newPath.Replace(SourcePath, DestinationPath), true);
       Application.DoEvents();

 }

Answer 3

您可以使用Backgroundworker但是如果您想使用其他方法这里有一个带有可下载源代码的链接，这也有助于你开始，因为我假设这是一个winforms应用程序

How to copy files in C# with a customizable progress indicator and or progress bar

Answer 4

试 { string [] subDirs = System.IO.Directory.GetDirectories（SourcePath，“”，（System.IO.SearchOption.AllDirectories））; int subFiles = System.IO.Directory.GetFiles（SourcePath，“。*”，SearchOption.AllDirectories）.Length; progressBar1.Maximum = subFiles +（subDirs.Length）; progressBar1.Value = 0; foreach（Directory.GetDirectories中的字符串dirPath（SourcePath，“*”， SearchOption.AllDirectories）） { progressBar1.Value ++; Directory.CreateDirectory（dirPath.Replace（SourcePath，DestinationPath））; Application.DoEvents（）;
}

            foreach (string newPath in Directory.GetFiles(SourcePath, "*.*",
                 SearchOption.AllDirectories))
            {
                progressBar1.Value++;
                File.Copy(newPath, newPath.Replace(SourcePath, DestinationPath), true);
                Application.DoEvents();

            }

        }

使用数组C＃复制文件的进度条

4 个答案: