public string UploadFile(string filePath) { string[] splitFilePath = new string[10]; splitFilePath = filePath.Split('\\'); ftp.CreateDirectoryIfNotExists(@"Users\" + visitor.Username); string[] extension = new string[10]; extension = splitFilePath.Last().Split('.'); string filepathServer = @"Users\" + visitor.Username + @"\" + RandomString(30) + @"." + extension.Last(); ftp.UploadFile(filePath, filepathServer); return(filepathServer); }