Book Image

ASP.NET Core 5 and Angular - Fourth Edition

By : Valerio De Sanctis
Book Image

ASP.NET Core 5 and Angular - Fourth Edition

By: Valerio De Sanctis

Overview of this book

Learning full-stack development calls for knowledge of both front-end and back-end web development. ASP.NET Core 5 and Angular, Fourth Edition will enhance your ability to create, debug, and deploy efficient web applications using ASP.NET Core and Angular. This revised edition includes coverage of the Angular routing module, expanded discussion on the Angular CLI, and detailed instructions for deploying apps on Azure, as well as both Windows and Linux. Taking care to explain and challenge design choices made throughout the text, Valerio teaches you how to build a data model with Entity Framework Core, alongside utilizing the Entity Core Fluent API and EntityTypeConfiguration class. You’ll learn how to fetch and display data and handle user input with Angular reactive forms and front-end and back-end validators for maximum effect. Later, you will perform advanced debugging and explore the unit testing features provided by xUnit.net (.NET 5) and Jasmine, as well as Karma for Angular. After adding authentication and authorization to your apps, you will explore progressive web applications (PWAs), learning about their technical requirements, testing, and converting SWAs to PWAs. By the end of this book, you will understand how to tie together the front end and back end to build and deploy secure and robust web applications.
Table of Contents (15 chapters)
13
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14
Index

Introducing the FormBuilder

Now that our CityEditComponent has been set up, we might be tempted to reuse the same techniques to create a CountryEditComponent and get the job done, just like we did in Chapter 5, Fetching and Displaying Data, with our CitiesComponent and CountryComponent files. However, we won't be doing this. Instead, we'll take the chance to introduce a new tool to our shed that can be very useful when dealing with multiple forms: the FormBuilder service.

In the following chapters, we'll do the following:

  • Create our CountryEditComponent with all the required TypeScript, HTML, and CSS files.
  • Learn how to use the FormBuilder service to generate form controls in a better way.
  • Add a new set of Validators (including a brand-new isDupeCountry custom validator) to the new form implementation.
  • Test our new FormBuilder-based implementation to check that everything works.

By the end of this section, we'll have a...