以编程方式将文件夹复制并粘贴到映射的网络驱动器中

我试图在映射的网络驱动器上复制一个文件夹（不是文件，而是整个目录），并将其新版本以不同的名称粘贴到同一位置。如果我使用本地驱动器，下面的代码效果很好；但是，我在使用网络驱动器时遇到身份验证错误。

DirectoryCopy(@"\\mappedserver\test", @"\\mappedserver\test2", true);

“mscorlib.dll 中发生了‘System.IO.IOException’类型的未处理异常

附加信息：用户名或密码不正确。”

我使用了以下 MSDN 文档：Link并稍作修改以满足我的需要。

    private static void DirectoryCopy(
    string sourceDirName, string destDirName, bool copySubDirs)
    {
        DirectoryInfo dir = new DirectoryInfo(sourceDirName);
        DirectoryInfo[] dirs = dir.GetDirectories();

        // If the source directory does not exist, throw an exception.
        if (!dir.Exists)
        {
            throw new DirectoryNotFoundException(
                "Source directory does not exist or could not be found: "
                + sourceDirName);
        }

        // If the destination directory does not exist, create it.
        if (!Directory.Exists(destDirName))
        {
            Directory.CreateDirectory(destDirName);
        }


        // Get the file contents of the directory to copy.
        FileInfo[] files = dir.GetFiles();

        foreach (FileInfo file in files)
        {
            // Create the path to the new copy of the file.
            string temppath = Path.Combine(destDirName, file.Name);

            // Copy the file.
            file.CopyTo(temppath, false);
        }

        // If copySubDirs is true, copy the subdirectories.
        if (copySubDirs)
        {

            foreach (DirectoryInfo subdir in dirs)
            {
                // Create the subdirectory.
                string temppath = Path.Combine(destDirName, subdir.Name);

                // Copy the subdirectories.
                DirectoryCopy(subdir.FullName, temppath, copySubDirs);
            }
        }
    }

一个流行的解决方案似乎是授予文件夹完全访问权限，但不幸的是这并没有产生什么影响。

我如何提供用户名和密码？我真的不想将管理员用户名和密码放在应用程序的任何地方，那么如何才能做到这一点呢？我的搜索结果大多是空的。

有一次我需要从远程电脑复制文件。我找到了这个类：

public class NetworkShareAccesser : IDisposable
{
    private string _remoteUncName;
    private string _remoteComputerName;

    private string RemoteComputerName
    {
        get { return _remoteComputerName; }
        set
        {
            _remoteComputerName = value;
            _remoteUncName = @"\\" + _remoteComputerName;
        }
    }

    private string UserName { get; set; }
    private string Password { get; set; }

    #region Consts

    private const int RESOURCE_CONNECTED = 0x00000001;
    private const int RESOURCE_GLOBALNET = 0x00000002;
    private const int RESOURCE_REMEMBERED = 0x00000003;

    private const int RESOURCETYPE_ANY = 0x00000000;
    private const int RESOURCETYPE_DISK = 0x00000001;
    private const int RESOURCETYPE_PRINT = 0x00000002;

    private const int RESOURCEDISPLAYTYPE_GENERIC = 0x00000000;
    private const int RESOURCEDISPLAYTYPE_DOMAIN = 0x00000001;
    private const int RESOURCEDISPLAYTYPE_SERVER = 0x00000002;
    private const int RESOURCEDISPLAYTYPE_SHARE = 0x00000003;
    private const int RESOURCEDISPLAYTYPE_FILE = 0x00000004;
    private const int RESOURCEDISPLAYTYPE_GROUP = 0x00000005;

    private const int RESOURCEUSAGE_CONNECTABLE = 0x00000001;
    private const int RESOURCEUSAGE_CONTAINER = 0x00000002;


    private const int CONNECT_INTERACTIVE = 0x00000008;
    private const int CONNECT_PROMPT = 0x00000010;
    private const int CONNECT_REDIRECT = 0x00000080;
    private const int CONNECT_UPDATE_PROFILE = 0x00000001;
    private const int CONNECT_COMMANDLINE = 0x00000800;
    private const int CONNECT_CMD_SAVECRED = 0x00001000;

    private const int CONNECT_LOCALDRIVE = 0x00000100;

    #endregion

    #region Errors

    private const int NO_ERROR = 0;

    private const int ERROR_ACCESS_DENIED = 5;
    private const int ERROR_ALREADY_ASSIGNED = 85;
    private const int ERROR_BAD_DEVICE = 1200;
    private const int ERROR_BAD_NET_NAME = 67;
    private const int ERROR_BAD_PROVIDER = 1204;
    private const int ERROR_CANCELLED = 1223;
    private const int ERROR_EXTENDED_ERROR = 1208;
    private const int ERROR_INVALID_ADDRESS = 487;
    private const int ERROR_INVALID_PARAMETER = 87;
    private const int ERROR_INVALID_PASSWORD = 1216;
    private const int ERROR_MORE_DATA = 234;
    private const int ERROR_NO_MORE_ITEMS = 259;
    private const int ERROR_NO_NET_OR_BAD_PATH = 1203;
    private const int ERROR_NO_NETWORK = 1222;

    private const int ERROR_BAD_PROFILE = 1206;
    private const int ERROR_CANNOT_OPEN_PROFILE = 1205;
    private const int ERROR_DEVICE_IN_USE = 2404;
    private const int ERROR_NOT_CONNECTED = 2250;
    private const int ERROR_OPEN_FILES = 2401;

    #endregion

    #region PInvoke Signatures

    [DllImport("Mpr.dll")]
    private static extern int WNetUseConnection(
        IntPtr hwndOwner,
        NETRESOURCE lpNetResource,
        string lpPassword,
        string lpUserID,
        int dwFlags,
        string lpAccessName,
        string lpBufferSize,
        string lpResult
        );

    [DllImport("Mpr.dll")]
    private static extern int WNetCancelConnection2(
        string lpName,
        int dwFlags,
        bool fForce
        );

    [StructLayout(LayoutKind.Sequential)]
    private class NETRESOURCE
    {
        public int dwScope = 0;
        public int dwType = 0;
        public int dwDisplayType = 0;
        public int dwUsage = 0;
        public string lpLocalName = "";
        public string lpRemoteName = "";
        public string lpComment = "";
        public string lpProvider = "";
    }

    #endregion

    /// <summary>
    /// Creates a NetworkShareAccesser for the given computer name. The user will be promted to enter credentials
    /// </summary>
    /// <param name="remoteComputerName"></param>
    /// <returns></returns>
    public static NetworkShareAccesser Access(string remoteComputerName)
    {
        return new NetworkShareAccesser(remoteComputerName);
    }

    /// <summary>
    /// Creates a NetworkShareAccesser for the given computer name using the given domain/computer name, username and password
    /// </summary>
    /// <param name="remoteComputerName"></param>
    /// <param name="domainOrComuterName"></param>
    /// <param name="userName"></param>
    /// <param name="password"></param>
    public static NetworkShareAccesser Access(string remoteComputerName, string domainOrComuterName, string userName, string password)
    {
        return new NetworkShareAccesser(remoteComputerName, domainOrComuterName + @"\" + userName, password);
    }

    /// <summary>
    /// Creates a NetworkShareAccesser for the given computer name using the given username (format: domainOrComputername\Username) and password
    /// </summary>
    /// <param name="remoteComputerName"></param>
    /// <param name="userName"></param>
    /// <param name="password"></param>
    public static NetworkShareAccesser Access(string remoteComputerName, string userName, string password)
    {
        return new NetworkShareAccesser(remoteComputerName, userName, password);
    }

    private NetworkShareAccesser(string remoteComputerName)
    {
        RemoteComputerName = remoteComputerName;

        ConnectToShare(_remoteUncName, null, null, true);
    }

    private NetworkShareAccesser(string remoteComputerName, string userName, string password)
    {
        RemoteComputerName = remoteComputerName;
        UserName = userName;
        Password = password;

        ConnectToShare(_remoteUncName, UserName, Password, false);
    }

    private void ConnectToShare(string remoteUnc, string username, string password, bool promptUser)
    {
        NETRESOURCE nr = new NETRESOURCE
        {
            dwType = RESOURCETYPE_DISK,
            lpRemoteName = remoteUnc
        };

        if (promptUser)
        {
            WNetUseConnection(IntPtr.Zero, nr, "", "", CONNECT_INTERACTIVE | CONNECT_PROMPT, null, null, null);
        }
        else
        {
            WNetUseConnection(IntPtr.Zero, nr, password, username, 0, null, null, null);
        }
    }

    private void DisconnectFromShare(string remoteUnc)
    {
        WNetCancelConnection2(remoteUnc, CONNECT_UPDATE_PROFILE, false);          
    }

    /// <summary>
    /// Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
    /// </summary>
    /// <filterpriority>2</filterpriority>
    public void Dispose()
    {
        DisconnectFromShare(_remoteUncName);
    }
}

当您拥有远程电脑的凭据时，它将帮助您连接远程电脑。你可以这样使用它：

 using (NetworkShareAccesser.Access("1.1.1.1","domain","login","password"))
{
     //Here you have access to remote pc and you can perform your actions
}

希望这就是您正在寻找的。