private async void btnLogon_Click(object sender, EventArgs e) { try { IAuthenticationManager authenticationManager = ManagerFactory.GetManager <IAuthenticationManager>(); CommerceAuthenticationParameters commerceParameters = new CommerceAuthenticationParameters(MainForm.CommerceAuthenticationParametersGrantType, MainForm.CommerceAuthenticationParametersClientId); this.UserIdToken = await authenticationManager.AcquireToken(this.textBoxUserName.Text, this.textBoxPassword.Text, commerceParameters); this.mainForm.Log("Logon succeeded."); } catch (Exception ex) { this.mainForm.Log(ex.ToString()); } this.Close(); }