public async Task <int> ConnectBridge(string usernameN, string port, string ip) { Windows.Storage.StorageFolder storageFolder = Windows.Storage.ApplicationData.Current.LocalFolder; Windows.Storage.StorageFile usernameFile = await storageFolder.GetFileAsync("username.txt"); if (usernameFile.ToString() != "") { if (username == null) { var response = await ConnectTask(usernameN, port, ip); List <char> list = response.Skip(25).ToList(); response = null; foreach (char c in list) { response += c; } response = response.Remove(31); String username1 = response; this.username = username1; await Windows.Storage.FileIO.WriteTextAsync(usernameFile, username1); } } return(10); }