How to limit the selection of choice list up to 3 in checkbox

[Sai Akhil]

Hello Developers,

I have a requirement where I used 6 checkboxes in the catalog item, but I have to restrict the user to select the utmost 3, please let me know how to achieve this.

Thanks in advance,

Akhil.

[afraz]

create 6 onChange scripts on the 6 checkboxes and add the below code in all

    var checkbox = ['checkbox1', 'checkbox2', 'checkbox3','checkbox4','checkbox5','checkbox6'];
    var chkarr = {};
	var count= 0;
	for(var i=0;i<checkbox.length;i++){
		chkarr[checkbox[i]] = g_form.getValue(checkbox[i]);
	}
	for (var key in chkarr){
		if(chkarr[key] == 'true'){
			count = count + 1;
		}
		if(count == 3){
			for (var key1 in chkarr){
				if(chkarr[key1] == 'false')
				g_form.setReadOnly(key1,true);
			}
		}
		else{
			for (var key1 in chkarr){
				g_form.setReadOnly(key1,false);
			}
		}
	}