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

Adding a key to a table


Keys are used to make sure that every record in the table is unique. They are often also referred to as indexes and are used to sort your data in ways that are most beneficial to the user. If you do not specify a key manually, the field you have placed in Field No. with the value 1 will act as the primary key for your table.

How to do it...

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

  2. Navigate to Design in Object Designer to open the Table Designer page for that table.

  3. Navigate to Key in View (Alt + V + K).

  4. On the empty line, add a new key for Document No., Posting date.

  5. Our key should look like the window shown in the following screenshot:

How it works...

Keys allow you to sort data in a way that will increase your application's performance. There is a trade-off, though; increased application performance later, costs you some effort earlier.

When we insert data into a table, it is automatically sorted based on the primary key of that table, but what...