Book Image

Mastering SAP ABAP

By : Paweł Grześkowiak, Wojciech Ciesielski, Wojciech Ćwik
Book Image

Mastering SAP ABAP

By: Paweł Grześkowiak, Wojciech Ciesielski, Wojciech Ćwik

Overview of this book

Advanced Business Application Programming (ABAP) is an established and complex programming language in the IT industry. This book is designed to help you use the latest ABAP techniques and apply legacy constructions using practical examples. You'll start with a quick refresher on language and database concepts, followed by agile techniques for adding custom code to a modern ABAP system. After this, you will get up to speed with the complete ABAP toolset for importing data to and from different environments. Next, you'll learn how to print forms and work with the different ABAP tools for Extensible Markup Language (XML) manipulation. While covering further chapters, you'll gain insights into building stunning UI5 interfaces, in addition to learning how to develop simple apps using the Business Object Processing Framework (BOPF). You will also pick up the technique of handling exceptions and performing testing in ABAP. In the concluding chapters, you can look forward to grasping various techniques for optimizing the performance of programs using a variety of performance analysis tools. By the end of this book, you will have the expertise you need to confidently build maintainable programs in Systems, Applications, and Products (SAP).
Table of Contents (25 chapters)
Title Page
Copyright and Credits
Dedication
About Packt
Contributors
Preface
Index

Chapter 7. Building User Interfaces

In Systems, Applications, Products (SAP), we have various technologies for presenting user interfaces. We can use classic DynPro, which we will focus on in this chapter. This is based on the SAP GUI and is almost completely integrated with ABAP and web-based technologies such as SAPUI5.

Classic DynPro is divided into two categories:

  •  Classic DynPro
  •  Selection screens

Despite the fact that these two categories use the same technology, the methods for programming them are different.

Classic DynPro (named screen) needs to be created in Screen Painter in the ABAP Workbench, as well as being called in CALL SCREEN statement. The selection screen can be defined purely in ABAP and it is a specific classic DynPro.

We will cover the following topics:

  • Creating a selection screen
  • Advanced options of the selection screen
  • Creating user interfaces based on DynPro
  • Creating an ABAP List Viewer (ALV) based on CL_GUI_ALV_GRID with a few additions
  • Creating and using advanced options...