To allow only alphabets to be entered into a string field

This code validates a string field. If you want only the alphabets need to be entered into it.

You can extend this numbers and combination of alphabets and numbers.

static void allowalpha(Args _args)

{

#define.alphabets('ABCDEFGHIJKLMNOPQRSTUVWXYZ')

str k ="kranthi";;

;

if((strkeep(substr(k, 1, strlen(k)), #alphabets) != substr(k, 1, strlen(k))))

print "The string contains other than alphabets";

else

print "The string contains only alphabets";

pause;

}