使用System.IO在C#中复制文件夹

Question

我需要将文件夹C:\ FromFolder复制到C:\ ToFolder

下面的代码将剪切我的FromFolder,然后将创建我的ToFolder.所以我的FromFolder将会消失,所有项目都将在新创建的名为ToFolder的文件夹中

System.IO.Directory.Move(@"C:\FromFolder ", @"C:\ToFolder");

但我只是想将FromFolder中的文件复制到ToFolder.由于某种原因,没有System.IO.Directory.Copy ???

如何使用批处理文件完成此操作 - 非常简单

xcopy C:\ FromFolder C:\ ToFolder

问候艾蒂安

Answer 1

有一个文件副本.重新创建文件夹并将原始目录中的所有文件复制到新的 示例中

static void Main(string[] args)
    {
        DirectoryInfo sourceDir = new DirectoryInfo("c:\\a");
        DirectoryInfo destinationDir = new DirectoryInfo("c:\\b");

        CopyDirectory(sourceDir, destinationDir);

    }

    static void CopyDirectory(DirectoryInfo source, DirectoryInfo destination)
    {
        if (!destination.Exists)
        {
            destination.Create();
        }

        // Copy all files.
        FileInfo[] files = source.GetFiles();
        foreach (FileInfo file in files)
        {
            file.CopyTo(Path.Combine(destination.FullName, 
                file.Name));
        }

        // Process subdirectories.
        DirectoryInfo[] dirs = source.GetDirectories();
        foreach (DirectoryInfo dir in dirs)
        {
            // Get destination directory.
            string destinationDir = Path.Combine(destination.FullName, dir.Name);

            // Call CopyDirectory() recursively.
            CopyDirectory(dir, new DirectoryInfo(destinationDir));
        }
    }

Answer 2

此链接提供了一个很好的示例.

http://msdn.microsoft.com/en-us/library/cc148994.aspx

这是一个片段

// To copy all the files in one directory to another directory.
// Get the files in the source folder. (To recursively iterate through
// all subfolders under the current directory, see
// "How to: Iterate Through a Directory Tree.")
// Note: Check for target path was performed previously
//       in this code example.
if (System.IO.Directory.Exists(sourcePath))
{
  string[] files = System.IO.Directory.GetFiles(sourcePath);

  // Copy the files and overwrite destination files if they already exist.
  foreach (string s in files)
  {
    // Use static Path methods to extract only the file name from the path.
    fileName = System.IO.Path.GetFileName(s);
    destFile = System.IO.Path.Combine(targetPath, fileName);
    System.IO.File.Copy(s, destFile, true);
  }
}

Answer 3

复制目录(正确)实际上是一项相当复杂的任务,尤其是考虑到交叉点和硬链接等高级文件系统技术.您最好的选择是使用支持它的API.如果你不怕一点P/Invoke,shell32中的SHFileOperation是你最好的选择.另一种方法是在Microsoft.VisualBasic程序集中使用Microsoft.VisualBasic.FileIO.FileSystem.CopyDirectory方法(即使您没有使用VB).