Hi,
Currently i am working on Extensions in Infor LN, here I wanted to use the form.load event for enabling and disabling the form fields based on some conditions.
I could not find this event in extension. Previously i use to write this event in Baan V.

Can anyone suggest some way to use this event.

Do you mean the After Form Read event?

Yes exactly sorry for the wording.
Once the form is load bases on one field value i want to enable or disable the other field

I think After Form Read in general is too early. For sessions with main table, you need to use the hooks in the table extension. For processing/print sessions you must do it in the session extension, but Before Display Object is the correct event (then also user defaults are applied).