public CellViewNumber(Activity context, CellControllerNumber controller) { numberView = new EditText(context) { InputType = InputTypes.ClassNumber | InputTypes.NumberFlagDecimal | InputTypes.NumberFlagSigned }; numberView.SetMaxLines(1); numberView.SetLines(1); numberView.SetSingleLine(true); numberView.AddTextChangedListener(this); cell_controller = controller; controller.HookView(this); }