How to make a DFF segment mandatory only in one page?

Question

Hi All,
We have added a DFF in 2-3 pages. One of the segments in that DFF should be made mandatory only for one particular page. Is there any way to make it mandatory via personalization?
I can't make it mandatory in DFF settings as it will make the field mandatory in all pages where the DFF is used.
I m aware that I can extend the controller and check wehther the value has been entered or not. But does anyone have idea whether this can be achieved without any customization?
Regards,
Pradeep

Answer 1

We can achieve this requirement using Java script but this script is fired for every event in the page. You need to carefully choose the event(i.e. when the script should be fired).
Sample code:
1. create a rawText item
2. .in text property of the rawtext item use below sample code
<SCRIPT>if (document.getElementById("DFFFlex0").value != null) {alert('This field is required');} </SCRIPT>
// here DFFFlex0 is the ID of the specific DFF segment-Anand