Book Image

Extending Microsoft Power Apps with Power Apps Component Framework

By : Danish Naglekar
Book Image

Extending Microsoft Power Apps with Power Apps Component Framework

By: Danish Naglekar

Overview of this book

Power Apps Component Framework is used by professional developers to extend the capabilities of model-driven and canvas apps. Extending Microsoft Power Apps with Power Apps Component Framework will take you through the basic as well as advanced topics using practical examples. The book starts by helping you understand the fundamentals of the framework, its lifecycle, and the tools that you'll use to build code components using best practices and file management guidelines. You'll then learn how to extend Power Apps step by step and apply the principles and concepts covered in the book to build code components for field type attributes. The book covers different ways of debugging code components and guides you through the process of building code components for datasets. You'll also explore the functions and methods provided by the framework to enhance your controls using powerful sets of libraries and extensions. As you advance, you'll get to grips with creating and managing authentication profiles, discover different ways of deploying code components, and configure code components in model-driven and canvas apps. Finally, you'll learn some of the important features of the framework and learn modern web development practices. By the end of this Power Apps book, you'll be able to build, debug, enrich, and deploy code components confidently.
Table of Contents (18 chapters)
1
Section 1: Fundamentals of the Power Apps Component Framework
6
Section 2: Building and Managing Code Components
12
Section 3: Enhancing Code Components and Your Development Experience

Exploring the updateView method

Before we begin exploring the updateView method, let's revise some of the things we learned about in Chapter 4, Project Overview and the Component Life Cycle. We learned that, during the component life cycle, updateView is invoked whenever the value is changed by the host. We also learned that updateView is invoked when a bound property defined in the manifest file is changed by the user. There are other reasons why we would wish to invoke the updateView method, so we will be exploring some of those reasons to better understand the importance of the updateView method.

Using the example library in the 1.UpdateView-GetOutputs folder provided for this chapter, build the PCF project and start the test harness. Let's go through some scenarios that will help you understand how the updateView method works:

  1. First-time load

    When the code component initially loads, we know that the init method has been invoked. This is followed by the updateView...