Book Image

Learn Microsoft Power Apps - Second Edition

By : Matthew Weston, Elisa Bárcena Martín
4 (2)
Book Image

Learn Microsoft Power Apps - Second Edition

4 (2)
By: Matthew Weston, Elisa Bárcena Martín

Overview of this book

Microsoft Power Apps provides a modern approach to building low-code business applications for mobiles, tablets, browsers, and Microsoft Teams. The second edition of Learn Microsoft Power Apps will guide you in creating well designed and secure apps that transform old processes and workflows. Learn Microsoft Power Apps starts with an introduction to Power Apps to help you feel comfortable with the creation experience. Using screenshots from the latest UI, you will be guided through how to create an app, building your confidence to start developing further. This book will help you design, set up, and configure your first application by writing simple formulas. You'll learn about the different types of apps you can build in Power Apps and which one applies best to your requirements. In addition to this, you’ll learn how to identify the right data storage system for you, with new chapters covering how to integrate apps with SharePoint or Dataverse. As you advance, you’ll be able to use various controls, connectors, and data sources to create a powerful, interactive app. For example, this book will help you understand how Power Apps can use Microsoft Power Automate, Power BI, and Azure functionalities to improve your applications. Finally, you will be introduced to the emerging Power Apps Copilot tool, which uses artificial intelligence to accelerate the app building process. By the end of this Power Apps book, you’ll be ready to confidently develop lightweight business applications with minimal code.
Table of Contents (27 chapters)
24
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25
Index
Appendix

Variables

Variables are a fundamental part of any development approach, regardless of whether you are using Power Apps or you are developing using a programming language. They are used to store temporary copies of data so that they can be consumed by other areas of your app.

All variables are defined by the boundaries from which they can be accessed; that is, we can create variables that can only be accessed within a single screen or that can be accessed throughout the app. This is known as the scope of the variable.

Global variables

Global variables are scoped so that they can be accessed from anywhere within your app. Global variables are extremely versatile as you can store any type of data within them – that is, you can store tables of data as well as simple strings and numbers.

We use global variables where we want to be able to store the data once but potentially use it multiple times throughout our app. They could be used to store app-level data when the app first loads...