How do I detect my page control values are changed and what values are changed
<p>i have asked a similar question earlier, but this time i need a method that will detect any change made on any control of the page with old and new values in a combined string to maintain history of that particular change. Say if a user made in 4 fields of a page the method will be able to detect the change and create a string with change in old and new values.</p>

<p>Note - My page controls are using Class Properties to display values.</p>
