Book Image

Learning Dynamics NAV Patterns

By : Marije Brummel
Book Image

Learning Dynamics NAV Patterns

By: Marije Brummel

Overview of this book

Microsoft Dynamics NAV is a complete ERP system, which also contains a robust set of development tools to support customization and enhancement. These include an object designer for each of the seven application object types, a business application-oriented programming language with .NET interface capability, a compiler, a debugger, and programming testing language support. Learning Dynamics NAV Patterns will guide you through the NAV way of solving problems. This book will first introduce you to patterns and the software architecture of the NAV and then help you to build an example application. Then, it walks you through the details of architectural patterns, design patterns, and implementation patterns. This book will also talk about anti-patterns and handling legacy code. Finally, it teaches you to build solutions using patterns. Proven patterns and best practices will help you create better solutions that are easy to maintain in larger teams across several locations. It will guide you through combining abstract patterns using easy-to-understand examples and will help you decide which patterns to use in which scenarios.
Table of Contents (9 chapters)
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The Number Series Pattern

When working with the ERP systems, issue numbers are issued to identify records in tables, which is a key requirement. Microsoft Dynamics NAV has a similar numbering engine built into the system as a part of the application. The engine is written in C/AL, and is accessible to be changed by developers.

More information can be found in the How Do I video, available at

Although it is possible to change the behavior of the engine, best practice is not to do so. The engine can be used from any part of the system by implementing a few steps.

Technical description

The NoSeriesManagement Codeunit has a number of functions, such as TestManual, InitSeries, and LookupSeries. We will focus on how to implement them as part of the primary key. Another example is to implement Number Series to automatically populate the Document No. field in the Journal Lines....