FTP upload with DotNet

Hi, everyone.

I have created an FTP upload function from within NAV using .NET, so that no external libs are needed for that.
Gladly sharing this with you (not optimized or anything, but works):

URL := 'ftp://remote_server/remote_folder/testfile.txt';
FTPRequest := WebRequest.Create(URL);
Credentials := Credentials.NetworkCredential('some_login', 'some_password');
FTPRequest.Credentials := Credentials;
FTPRequest.KeepAlive := false;
FTPRequest.UseBinary := true;
FTPRequest.Method := 'STOR';
FTPRequest.UsePassive := true;
FileStream := FileA.OpenRead('c:\testfile.txt');
FTPRequest.GetRequestStream.Write(FileA.ReadAllBytes('c:\testfile.txt'), 0, FileStream.Length);

---

WebRequest	DotNet	'System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.System.Net.WebRequest	
FTPRequest	DotNet	'System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.System.Net.FtpWebRequest	
Credentials	DotNet	'System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.System.Net.NetworkCredential	
FileStream	DotNet	'mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.System.IO.FileStream	
FileA	DotNet	'mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.System.IO.File	
URL	Text		250

Now a question - I can't get my head around this:
The
FTPRequest.Method := 'STOR';
was my lucky guess, and every code sample I've seen actually says:
FTPRequest.Method := WebRequestMethods.Ftp.UploadFile;

As far as I understand, WebRequestMethods.Ftp is a .NET enumeration that in this case corresponds Strings.
How to use these enumerations appropriately?

Disclaimer: This is my first encounter with NAV+.NET