If I understand you correctly, you want to copy the contents of a folder to another folder in ASP.Net and you're stuck in getting the Folder Path. If that is the case, you can use
Server.MapPath("~\Folder1")
to get the folder path of a folder named "Folder1" located at the root of your web application.
If I understood the question incorrectly, as everyone else said, rephrase your question.