March 2017
Intermediate to advanced
1235 pages
28h 42m
English
book
Microsoft Dynamics NAV
by Alex Chow, Laura Nicolàs Lorente, Cristina Nicolàs Lorente, Vjekoslav Babić, David Roys, David Studebaker, Christopher Studebaker, Mark Brummel
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Validation functions
C/AL includes a number of utility functions designed to facilitate data validation or initialization. Some of these functions are:
TESTFIELDFIELDERRORINITVALIDATE
TESTFIELD
The TESTFIELD function is widely used in standard NAV code. With TESTFIELD, we can test a variable value and generate an error message in a single statement if the test fails. The syntax is:
Record.TESTFIELD (Field, [Value] )
If a Value is specified and the field does not contain that value, the process terminates with an error condition and the error message is issued.
If no Value is specified, the field contents are checked for values of zero or blank. If the field is zero or blank, then that an error message is issued.
The advantage of TESTFIELD is the ease ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.