Hide/Show choice list in client Script

[Fabrizio Joaqui]

Hi, i want to show/hide choice list based on the value the user selects, i tried to do it with the below script but its not working, can anyone help me? Thanks in advance.

the script remove but not show when the user selects other values:

function onChange(control, oldValue, newValue, isLoading, isTemplate) {
    if (isLoading || newValue === '') {
        return;
    }

    //Type appropriate comment here, and begin script below
    if (newValue == '1' || newValue == '2') {
        g_form.removeOption('u_esito', 'istr');
    }else{
		alert('hi!');
		g_form.addOption('u_esito', 'istr','Istruzione');
	}
	
}

[AnubhavRitolia · Accepted solution]

Hi @Fabrizio Joaqui 

Please try below code:

function onChange(control, oldValue, newValue, isLoading, isTemplate) {
    if (isLoading || newValue === '') {
        return;
    }

    //Type appropriate comment here, and begin script below
    if (newValue != '1' && newValue != '2') {
      g_form.addOption('u_esito', 'istr','Istruzione');
    } else {
	g_form.removeOption('u_esito', 'istr');
	}
	
}