public override void OnBindElements(View view) { LoginButton = view.FindViewById <Button>(Resource.Id.loginButton); DemoButton = view.FindViewById <Button>(Resource.Id.DemoButton); ServerName = view.FindViewById <EditText>(Resource.Id.serverName); Username = view.FindViewById <EditText>(Resource.Id.username); Password = view.FindViewById <EditText>(Resource.Id.password); RememberMe = view.FindViewById <CheckBox>(Resource.Id.rememberMe); LoginProgressBar = view.FindViewById <ProgressBar>(Resource.Id.LoginProgressBar); LoginLayout = view.FindViewById <LinearLayout>(Resource.Id.LoginLayout); LoginProgressBar.Visibility = ViewStates.Invisible; LoginButton.Enabled = false; Username.AddTextChangedListener(this); Password.AddTextChangedListener(this); Username.OnFocusChangeListener = this; Password.OnFocusChangeListener = this; LoginButton.SetOnClickListener(this); DemoButton.SetOnClickListener(this); }