Why are using Implicit?
sessionOpts.FtpSecure = FtpSecure.Implicitsuccessfully, I will put file to FTPS server
TransferOperationResult transResult = session.PutFiles(uploadFile, uploadTo, false, transOptions);
uploadFile = D:\Test\1\TestHTTP.x12;
uploadTo = "/"
[WinSCP Exception] Put Files [D:\Test\1\TestHTTP.x12] Unsuccess Error Happens: Error transferring file 'D:\Test\1\TestHTTP.x12'.
Copying files to remote side failed.
Can't open data connection.