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1.How can you search an entire source file for a particular
field name?
2.How can you find the differences between two versions of
the source for the same program?
3.What is a hidden field as it relates to a sub file?
4.How do you display a sub file that has no records in the
sub file?
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Answer Posted / ugandhar
3. Sub file hidden is not visible on the subfile but can be
used in the case like storing the RRN number for that
perticular record. This is as per one of our friend answer
and also we can use this hidden variables in subfile in
different senarios like if have more than one subfile
screen in single subfile and all screens are related to a
single file or firm. If you want to read the values from
all the screens at a time this subfile hidden variables are
very helpfull. Only thing is you need to declare the
variables as hidden which are available in second or
third..and not available in first with same name and
attributes. If you perform readc on single sflfrmt you can
get all values from all screens.
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