How to restrict docs,jpg,png type attachment on incidetn table

[dheeru_1994]

Hii All 
my requirement is i want to restrict docs,jpg,png type attachment  on incident table 
what is the way to get full fill this requirement  like if i create business rule or something like 
if i am doing with system properties it is applying to all tables but i want only on incident table 
any help highly appreciated 
thanks 

[lmundere]

Generally, you restrict specific attachments extension on the global(instance) level, if you want to restrict it on table level, I guess that you will have to write a before business rule on the sys_attachment table whichs aborts when the attachment extension is the not the one you want.