Book Image

Delphi GUI Programming with FireMonkey

By : Andrea Magni
4 (1)
Book Image

Delphi GUI Programming with FireMonkey

4 (1)
By: Andrea Magni

Overview of this book

FireMonkey (FMX) is a cross-platform application framework that allows developers to create exciting user interfaces and deliver applications on multiple operating systems (OS). This book will help you learn visual programming with Delphi and FMX. Starting with an overview of the FMX framework, including a general discussion of the underlying philosophy and approach, you’ll then move on to the fundamentals and architectural details of FMX. You’ll also cover a significant comparison between Delphi and the Visual Component Library (VCL). Next, you’ll focus on the main FMX components, data access/data binding, and style concepts, in addition to understanding how to deliver visually responsive UIs. To address modern application development, the book takes you through topics such as animations and effects, and provides you with a general introduction to parallel programming, specifically targeting UI-related aspects, including application responsiveness. Later, you’ll explore the most important cross-platform services in the FMX framework, which are essential for delivering your application on multiple platforms while retaining the single codebase approach. Finally, you’ll learn about FMX’s built-in 3D functionalities. By the end of this book, you’ll be familiar with the FMX framework and be able to build effective cross-platform apps.
Table of Contents (18 chapters)
Section 1: Delphi GUI Programming Frameworks
Section 2: The FMX Framework in Depth
Section 3: Pushing to The Top: Advanced Topics

Connecting to a database

Now that we have covered some ways to use FireDAC even without an underlying DBMS, we can step back to what is probably the main (but not exclusive) focus of this library: dealing with a DBMS (a traditional one like an RDBMS or even modern ones like NoSQL).

The first task you need to accomplish is usually to set up a connection to the data source (the DBMS). Either for historical or practical reasons, there are a number of ways to define connections.

The first great distinction is between defining a connection through its set of parameters rather than using a connection definition name. The following screenshot shows the component editor available for TFDConnection, including the list of configuration parameters composing the connection definition:

Figure 5.7

As you can see, you can drop a TFDConnection object on your form/frame/data module and start configuring it. On the left of the screenshot, you will notice the Object Inspector IDE window showing the...