Book Image

Microsoft Dynamics NAV 7 Programming Cookbook - Second Edition

Book Image

Microsoft Dynamics NAV 7 Programming Cookbook - Second Edition

Overview of this book

Microsoft Dynamics NAV 7 is a business management solution that helps simplify and streamline highly specialized business processes. Learning NAV programing in NAV 7 gives you the full inside view of an ERP system. Microsoft Dynamics NAV 7 Programming Cookbook covers topics that span a wide range of areas such as integrating the NAV system with other software applications including Microsoft Office, and creating reports to present information from multiple areas of the system,. We will not only learn the essentials of NAV programming, you will also be exposed to the technologies that surround NAV including.NET programming, SQL Server and NAV system administration. Microsoft Dynamics NAV 7 Programming Cookbook is written in a direct, to-the-point style to help you get what you need and continue working in NAV. The first half of the cookbook will help programmers using NAV for the first time, by walking them through the building blocks of writing code and creating objects such as tables, pages, and reports. The second half focuses on using the technologies surrounding NAV to build better solutions. You will learn how to write .NET code that works with the NAV system and how to integrate the system with other software applications such as Microsoft Office or even custom programs. You will learn everything you need to know for developing all types of NAV CSIDE objects, as well as how to integrate and maintain a NAV system.
Table of Contents (20 chapters)
Microsoft Dynamics NAV 7 Programming Cookbook
Credits
About the Author
About the Reviewers
Acknowledgements
www.PacktPub.com
Preface
Index

Creating a SumIndexField


A SumIndexField is like a running total of certain fields in your table. Instead of calculating these sums manually, you can tell NAV to do it for you. Here, we'll tell you how to add a SumIndexField to your table and show you how to use it.

How to do it...

  1. Follow the steps from the Creating a table recipe to create a table.

  2. View the key by clicking on Keys in the View menu.

  3. Add a key for the Posting Date field with a SumIndexField value.

  4. Close the Keys window.

  5. Save and close your table.

How it works...

This recipe, unlike a few others, is very straightforward. By adding fields to list in the SumIndexFields column of a key, you tell the database to keep a track of the totals for those fields for every combination of filters in the key, as shown in the following screenshot:

There's more...

Why use SumIndexFields? Why not just calculate these totals manually? The answer is that it is much faster to let the database do it. We won't get into the details behind the scenes regarding...