[转]C# 获取指定目录下所有文件信息、移动目录、拷贝目录

原文：http://blog.csdn.net/vchao13/article/details/6200255

１、获取指定目录下所有文件信息

/// <summary>
      /// 返回指定目录下所有文件信息
      /// </summary>
      /// <param name="strDirectory">目录字符串</param>
      /// <returns></returns>
      public List<FileInfo> GetAllFilesInDirectory(string strDirectory)
      {
          List<FileInfo> listFiles = new List<FileInfo>(); //保存所有的文件信息
          DirectoryInfo directory = new DirectoryInfo(strDirectory);
          DirectoryInfo[] directoryArray = directory.GetDirectories();
          FileInfo[] fileInfoArray = directory.GetFiles();
          if (fileInfoArray.Length > 0) listFiles.AddRange(fileInfoArray);
          foreach (DirectoryInfo _directoryInfo in directoryArray)
          {
              DirectoryInfo directoryA = new DirectoryInfo(_directoryInfo.FullName);
              DirectoryInfo[] directoryArrayA = directoryA.GetDirectories();
              FileInfo[] fileInfoArrayA = directoryA.GetFiles();
              if (fileInfoArrayA.Length > 0) listFiles.AddRange(fileInfoArrayA);
              GetAllFilesInDirectory(_directoryInfo.FullName);//递归遍历
          }
          return listFiles;
      }

２、移动此目录到指定目录

/// <summary>
        /// 从一个目录将其内容移动到另一目录
        /// </summary>
        /// <param name="directorySource">源目录</param>
        /// <param name="directoryTarget">目的目录</param>
        private void  MoveFolderTo(string directorySource, string directoryTarget)
        {
            //检查是否存在目的目录
            if (!Directory.Exists(directoryTarget))
            {
                Directory.CreateDirectory(directoryTarget);
            }
            //先来移动文件
            DirectoryInfo directoryInfo = new DirectoryInfo(directorySource);
            FileInfo[] files = directoryInfo.GetFiles();
            //移动所有文件
            foreach (FileInfo file in files)
            {
                //如果自身文件在运行，不能直接覆盖，需要重命名之后再移动
                if (File.Exists(Path.Combine(directoryTarget, file.Name)))
                {
                    if (File.Exists(Path.Combine(directoryTarget, file.Name + ".bak")))
                    {
                        File.Delete(Path.Combine(directoryTarget, file.Name + ".bak"));
                    }
                    File.Move(Path.Combine(directoryTarget, file.Name), Path.Combine(directoryTarget, file.Name + ".bak"));

                }
                file.MoveTo(Path.Combine(directoryTarget, file.Name));

            }
            //最后移动目录
            DirectoryInfo[] directoryInfoArray = directoryInfo.GetDirectories();
            foreach (DirectoryInfo dir in directoryInfoArray)
            {
                MoveFolderTo(Path.Combine(directorySource, dir.Name), Path.Combine(directoryTarget, dir.Name));
            }
        }

３、拷贝此目录到指定目录

/// <summary>
       /// 从一个目录将其内容复制到另一目录
       /// </summary>
       /// <param name="directorySource">源目录</param>
       /// <param name="directoryTarget">目的目录</param>
       static void CopyFolderTo(string directorySource, string directoryTarget)
       {
           //检查是否存在目的目录
           if (!Directory.Exists(directoryTarget))
           {
               Directory.CreateDirectory(directoryTarget);
           }
           //先来复制文件
           DirectoryInfo directoryInfo = new DirectoryInfo(directorySource);
           FileInfo[] files = directoryInfo.GetFiles();
           //复制所有文件
           foreach (FileInfo file in files)
           {
               file.CopyTo (Path.Combine(directoryTarget, file.Name));
           }
           //最后复制目录
           DirectoryInfo[] directoryInfoArray = directoryInfo.GetDirectories();
           foreach (DirectoryInfo dir in directoryInfoArray)
           {
               CopyFolderTo(Path.Combine(directorySource, dir.Name), Path.Combine(directoryTarget, dir.Name));
           }

       }