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Delphi Cookbook

You're reading from   Delphi Cookbook Over 60 hands-on recipes to help you master the power of Delphi for cross-platform and mobile development on multiple platforms

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Product type Paperback
Published in Jun 2016
Publisher
ISBN-13 9781785287428
Length 470 pages
Edition 2nd Edition
Languages
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Author (1):
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Daniele Teti Daniele Teti
Author Profile Icon Daniele Teti
Daniele Teti
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Toc

Table of Contents (10) Chapters Close

Preface 1. Delphi Basics FREE CHAPTER 2. Becoming a Delphi Language Ninja 3. Knowing Your Friends – the Delphi RTL 4. Going Cross-Platform with FireMonkey 5. The Thousand Faces of Multithreading 6. Putting Delphi on the Server 7. Riding the Mobile Revolution with FireMonkey 8. Using Specific Platform Features Index

Serializing objects to JSON and back using RTTI


When you are using a domain model pattern (and you should do most of the time for non-trivial applications), the entities managed by your program are contained in objects. An object has a state and methods to change its state, just like any actual object in the real world.

Getting ready

Just like the datasets in the previous recipe, the need to serialize an object in a JSON object, send the object somewhere, and then recreate that object as it was before is very common. In this recipe, we'll use the TJson class and extend it with new functionalities.

How to do it…

Perform the following steps:

  1. Create a new VCL Forms Application.

  2. Drop four TButton and a TMemo on the form. Organize the TButton in a single row as a sort of toolbar and align the TMemo to cover the remaining part of the form.

  3. Name the TButton as follows:

    • btnObjToJSON

    • btnJSONtoObject

    • btnListToJSONArray

    • btnJSONArrayToList

  4. Add a new unit to the project, name it JSON.Serializer.pas and fill...

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