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Re: c# - Copy only new files from Zip

All you can do is to download the file to a local temporary folder, compare the contents and overwrite, if there's a change.

But in the end, it's the same as comparing the timestamp of the ZIP files and overwrite the local ZIP file whenever the remote file is newer.

c# - Copy only new files from Zip


So i have a zip file on my SFTP server. In this zip file there are files.

And i have a zip file on my pc.

What i want is that when i push a button in my C# application, the zip file on my pc will be updated. So lets say if the zip file on the sftp server has a new file in it. The ftp function will only update the zip file on the pc with that file.

Currently it always overwrite the zip file.

Is this possible?

thanks , Thomas


SessionOptions sessionOptions = new SessionOptions

                //i have information here.               
                    Protocol =
                    HostName = "",
                    UserName = "",
                    Password = "",
                    SshHostKeyFingerprint = "",

                using (Session session = new Session())
                    session.FileTransferProgress += SessionFileTransferProgress;
                    TransferOptions transferOptions = new TransferOptions();
                    transferOptions.TransferMode = TransferMode.Binary;
                    transferOptions.OverwriteMode = OverwriteMode.Overwrite;
                    TransferOperationResult transferResult;
                    transferResult = session.GetFiles("[file on server]","[file on pc]", false, new TransferOptions { FilePermissions =  null, PreserveTimestamp = false });