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Delphi GUI Programming with FireMonkey

You're reading from   Delphi GUI Programming with FireMonkey Unleash the full potential of the FMX framework to build exciting cross-platform apps with Embarcadero Delphi

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Product type Paperback
Published in Oct 2020
Publisher Packt
ISBN-13 9781788624176
Length 546 pages
Edition 1st Edition
Languages
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Author (1):
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Andrea Magni Andrea Magni
Author Profile Icon Andrea Magni
Andrea Magni
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Table of Contents (18) Chapters Close

Preface 1. Section 1: Delphi GUI Programming Frameworks
2. Introducing the FireMonkey Framework FREE CHAPTER 3. Exploring Similarities and Differences with VCL 4. Section 2: The FMX Framework in Depth
5. Mastering Basic Components 6. Discovering Lists and Advanced Components 7. Using FireDAC in FMX Applications 8. Implementing Data Binding 9. Understanding FMX Style Concept 10. Divide and Conquer with TFrameStand 11. Building Responsive UIs 12. Orchestrating Transitions and Animations 13. Section 3: Pushing to The Top: Advanced Topics
14. Building Responsive Applications 15. Exploring Cross-Platform Services 16. Learning about FMX 3D Capabilities 17. Other Books You May Enjoy

Binding a dataset field value to a control – TLinkControlToField

In the previous section, we learned how to unidirectionally bind a data field to a component's property value. The binding that was created to achieve the task was TLinkPropertyToField, while the target component that was used (TText) was a read-only one. But what if we switch to a read-write component in order to let the user change data?

In this section, we are going to use a bidirectional link between the data and target component since we want the component to keep reflecting changes on the dataset side (navigation over records, changes that have been applied to the record's content, and more). However, at the same time, changes may happen on the component side (because of user interaction, for example), and we want them to be applied to the dataset as well.

Here, we will try to use a TEdit component (Edit1) and bind it to the Salary field of the dataset. In the LiveBindings Designer window...

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