afterChangeProperties

fires after configuration attributes of a Form control have been changed dynamically

void afterChangeProperties(string name|id,object properties){ ... };

name\|id	string	the name (or id, if the name is not specified) of the Form control
properties	object	an object with configuration attributes of the control and their new values

form.events.on("AfterChangeProperties", function(name, properties) {
    console.log("AfterChangeProperties", name,  properties);
});