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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

DataItem triggers

Each DataItem has the following triggers available:

The DataItem triggers are where most of the flow logic is placed for a report. Developer defined functions may be freely added but, generally, they will be called from within the following three triggers:

  • OnPreDataItem(): This is the logical place for any preprocessing to take place that can't be handled in report or DataItem properties or in the two report preprocessing triggers.
  • OnAfterGetRecord(): This is the data read and process loop. The code that's placed here has full access to the data of each record, one record at a time. This trigger is repetitively processed until the logical end of table is reached for this DataItem. This is where we would typically access data in related tables. This trigger is represented on our report data flow diagram as any one of the boxes labeled Data Item processing Loop.
  • OnPostDataItem(): This executes after all the records in this DataItem are processed,...
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