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MVVM in Delphi: Architecting and Building Model View ViewModel Applications
book

MVVM in Delphi: Architecting and Building Model View ViewModel Applications

by John Kouraklis
October 2016
Intermediate to advanced
143 pages
2h 57m
English
Apress
Content preview from MVVM in Delphi: Architecting and Building Model View ViewModel Applications

© John Kouraklis 2016

John Kouraklis, MVVM in Delphi, 10.1007/978-1-4842-2214-0_6

6. User Interaction

John Kouraklis1 

(1)London, UK

Views (including forms, the console, and other means of data presentation) are created to present information and data to users and to allow them to interact with the software. User interaction is an integral part of every design pattern, including MVVM. As presented in Chapter 4, the way this project implements two-way communication between the different elements of the pattern is by using the Provider-Subscriber (ProSu) framework. In this chapter, we learn how to put ProSu into action and implement user interaction.

Selecting a Customer

When the user selects a customer from the popup box, POSApp retrieves the discount ...

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Publisher Resources

ISBN: 9781484222140Purchase book