问如果另一个进程正在使用一个或多个文件，则WinSCP Session.SynchronizeDirectories()将引发错误

EN

Exception thrown: 'System.IO.IOException' in mscorlib.dll Upload of D:\test\~$New Microsoft PowerPoint Presentation.pptx failed: 
WinSCP.SessionRemoteException: Can't open file 'D:\test\~$New Microsoft PowerPoint Presentation.pptx'.
System Error.  Code: 32.
The process cannot access the file because it is being used by another process
Permissions of  kept with their defaults
Timestamp of  kept with its default (current time)
Exception thrown: 'WinSCP.SessionRemoteException' in WinSCPnet.dll
The thread 0x26c0 has exited with code 0 (0x0).
Error: WinSCP.SessionRemoteException: Can't open file 'D:\test\~$New Microsoft PowerPoint Presentation.pptx'.
System Error.  Code: 32.
The process cannot access the file because it is being used by another process
   at WinSCP.OperationResultBase.Check()```

try
{
    SessionOptions sessionOptions = new SessionOptions
    {
        Protocol = Protocol.Sftp,
        HostName = "hostName",
        UserName = "root",
        Password = "p@ssword",
        PortNumber = 22,
        SshHostKeyPolicy = SshHostKeyPolicy.GiveUpSecurityAndAcceptAny
    };

    using (Session session = new Session())
    {
        session.Open(sessionOptions);
        session.Timeout = new TimeSpan(1, 0, 0);
        session.FileTransferred += FileTransferred;
        TransferOptions transferOptions = new TransferOptions();
        transferOptions.TransferMode = TransferMode.Automatic;
        transferOptions.AddRawSettings("ReplaceInvalidChars", "0");
        transferOptions.ResumeSupport.State = TransferResumeSupportState.On;

        SynchronizationResult synchronizationResult;
        synchronizationResult = session.SynchronizeDirectories(SynchronizationMode.Remote, @"D:\test\", "/home/test/", true, false, SynchronizationCriteria.Time, transferOptions);
        synchronizationResult.Check();
    }
}
catch (Exception ex)
{
    Console.WriteLine("Error: {0}", ex);
}

private static void FileTransferred(object sender, TransferEventArgs e)
{
    if (e.Error == null)
    {
        Console.WriteLine("Upload of {0} succeeded", e.FileName);
    }
    else
    {
        Console.WriteLine("Upload of {0} failed: {1}", e.FileName, e.Error);
    }

    if (e.Chmod != null)
    {
        if (e.Chmod.Error == null)
        {
            Console.WriteLine("Permissions of {0} set to {1}", e.Chmod.FileName, e.Chmod.FilePermissions);
        }
        else
        {
            Console.WriteLine("Setting permissions of {0} failed: {1}", e.Chmod.FileName, e.Chmod.Error);
        }
    }
    else
    {
        Console.WriteLine("Permissions of {0} kept with their defaults", e.Destination);
    }

    if (e.Touch != null)
    {
        if (e.Touch.Error == null)
        {
            Console.WriteLine("Timestamp of {0} set to {1}", e.Touch.FileName, e.Touch.LastWriteTime);
        }
        else
        {
            Console.WriteLine("Setting timestamp of {0} failed: {1}", e.Touch.FileName, e.Touch.Error);
        }
    }
    else
    {
        Console.WriteLine("Timestamp of {0} kept with its default (current time)", e.Destination);
    }
}