All fields should be readonly once the state is changed to Closed Complete on catalog task

[saichandu rayal]

When state is closed complete, it should make all the fields read only.

[nherm]

Hi, I have so similar question. I want to make all fields only readable when the status is closed or canceled for Change requests and for Change tasks. 

I have this code in Client script onchange at first for field "state = closed":

function onChange(control, oldValue, newValue, isLoading, isTemplate) {

    var model = g_scratchpad.change_model;

    var fields = g_form.getEditableFields();

    if (isLoading || newValue === "" || !model)

        return;

    if (newValue === "closed") {

        for (i = 0; i < fields.length; i++) {

            g_form.setReadOnly(fields[i], true);

        }

    }

}

Is it right or what I have to change, because its not working in the moment. 

Kind regards

Nicole