private void timer_tryToLogin_Elapsed(object sender, EventArgs e) { Debug.Print(DateTime.Now.ToLongTimeString() + " - Trying to login"); if (!HttpCommunication.Init(out ProgramData.SecureRandom)) { if (CMode.Equals(ConnectionMode.Unknown)) { CMode = ConnectionMode.Offline; radio_register.Enabled = radio_selection.Enabled = true; radio_selection.Checked = true; } else if (CMode.Equals(ConnectionMode.Offline)) { slb_LoginAs.Text = "嘗試連接到伺服器(離線模式)"; } } else { slb_LoginAs.Text = "伺服器連線成功,嘗試登入使用者"; CMode = ConnectionMode.Online; } if (CMode.Equals(ConnectionMode.Online)) { ProgramData.EncryptPw = Crypto.GetEncrypt(ProgramData.LoginPw, ProgramData.LoginId, ProgramData.SecureRandom); if (!HttpCommunication.Login(ProgramData.LoginId, ProgramData.EncryptPw, out string msg)) { AddLog(msg); ProgramData.LoginSuccess = false; slb_LoginAs.Text = "登入失敗"; loginToolStripMenuItem.Visible = true; cancelLoginToolStripMenuItem.Visible = false; } else { AddLog(msg); slb_LoginAs.Text = "登入為 " + ProgramData.LoginId; ProgramData.LoginSuccess = true; loginToolStripMenuItem.Visible = false; cancelLoginToolStripMenuItem.Visible = false; logoutToolStripMenuItem.Visible = true; myCourseToolStripMenuItem.Visible = true; searchCourseToolStripMenuItem.Visible = true; if (!_timerLoopSelect.Enabled) { radio_register.Enabled = radio_selection.Enabled = true; radio_register.Checked = true; } } _timerTryToLogin.Stop(); } }