Search icon
Arrow left icon
All Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Newsletters
Free Learning
Arrow right icon
Programming Microsoft Dynamics 365 Business Central - Sixth Edition

You're reading from  Programming Microsoft Dynamics 365 Business Central - Sixth Edition

Product type Book
Published in Apr 2019
Publisher Packt
ISBN-13 9781789137798
Pages 536 pages
Edition 6th Edition
Languages
Authors (3):
Marije Brummel Marije Brummel
Profile icon Marije Brummel
David Studebaker David Studebaker
Profile icon David Studebaker
Christopher D. Studebaker Christopher D. Studebaker
Profile icon Christopher D. Studebaker
View More author details

Table of Contents (12) Chapters

Preface Introduction to Business Central Tables Data Types and Fields Pages - The Interactive Interface Queries and Reports Introduction to AL Intermediate AL Advanced AL Development Tools Successful Conclusions Assessments Other Books You May Enjoy

VALIDATE

The syntax of the VALIDATE function is as follows:

Record.VALIDATE (Field [, Value]) 

VALIDATE will fire the OnValidate trigger of Record.Field. If we have specified a Value, it is assigned to the field and the field validations are invoked.

If we don't specify a Value, then the field validations are invoked using the field value that already exists in the field. This function allows us to easily centralize our code design around the table—one of Business Central's strengths.

For example, if we were to code and change Item."Base Unit of Measure" from one unit of measure to another, the code should make sure that the change is valid. We should get an error if the new unit of measure has any quantity other than 1, because quantity equals 1 is a requirement of the Base Unit of Measurement field. Making the unit of measure change with a simple assignment statement would not catch a quantity value error.

The following are two forms of using VALIDATE...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €14.99/month. Cancel anytime}