Make checkbox readOnly

Webix JS
1

I have a requirement to make check box disable and readOnly using function ,so that if user click in checkbox it should not check .can u give some sample code for that.

2

Try to use disable/enable methods:

http://webix.com/snippet/1ad7845e

3

In case of onchange method that check box is checked, but i want in onchange method check box is not checked.I try with disable/enable methods but its not work in case of onchange method.

4

Even through check box is disable onchange method is calling but I want if Check box is disable then it should not call onchange method.