How to dynamically change the Mask dialog box in Simulink

I have created a dynamic mask, which change if the block parameter "Command" is equal to Reset. The Command is set when I click apply, then it hides the Channel and Channel Electrical Parameters inputs, see below

I would like to improve my mask and make it more dynamic, without the need to click on Apply.

I put the piece of code that is in my Mask Editor belwo. Can anyone advise on how to get access directly to the selected Command?

disp('AD5665r')
mask = Simulink.Mask.get(gcb);
switch get_param(gcb,'Command') % I suppose this is where I need to change the code
    case {'Write_To_Input_Register_n' ,'Write_To_Input_Register_n_And_Update_all' ,'Write_To_And_Update_DAC_Channel_n'}
        [control,handle]=mask.getDialogControl("ChannelA_param_container");
        control.Visible='on';
        mask.getParameter("Channel").Visible = 'on';
        
        port_label('input', 1, 'VoltageSetpoint')
    case 'Reset'
        [control,handle]=mask.getDialogControl("ChannelA_param_container");
        control.Visible='off';
        mask.getParameter("Channel").Visible = 'off';
        
        port_label('input', 1, 'ResetTrigger')
end
port_label('output', 1, 'i2c status')

Answer 1

[Mark McBroom]

I am assuming the code you provided is from the "Initialization" tab? You could try putting the same code in the "callback" for the Command parameter on the Mask Editor -> Parameter and Dialog pane.

[Sylvain]

No, it is from the Icon and Ports. the initialization tab contains the following code, which modify blocks under the mask. Though using the same piece of code (minus the function port_label() ) works very well.

Many thanks

Sylvain