.NET sample for "putting" file not working...

I tried to "put" files from my local machine to the server with the help of .NET sample code at https://winscp.net/eng/docs/guide_dotnet. But it is not working...
WinSCP console opens and just that...code hangs up after that without "putting" or "listing(ls)"...

Kindly help me to fix this...

Sorry, your post does not include enough information.

Please read how to troubleshoot problems with WinSCP. If it turns out that you are not able to help yourself, read how to ask for support or report bugs efficiently, so others can help you.