Book Image

ASP.NET Core 2 and Angular 5

By : Valerio De Sanctis
Book Image

ASP.NET Core 2 and Angular 5

By: Valerio De Sanctis

Overview of this book

Become fluent in both frontend and backend web development by combining the impressive capabilities of ASP.NET Core 2 and Angular 5 from project setup right through the deployment phase. Full-stack web development means being able to work on both the frontend and backend portions of an application. The frontend is the part that users will see or interact with, while the backend is the underlying engine, that handles the logical flow: server configuration, data storage and retrieval, database interactions, user authentication, and more. Use the ASP.NET Core MVC framework to implement the backend with API calls and server-side routing. Learn how to put the frontend together using top-notch Angular 5 features such as two-way binding, Observables, and Dependency Injection, build the Data Model with Entity Framework Core, style the frontend with CSS/LESS for a responsive and mobile-friendly UI, handle user input with Forms and Validators, explore different authentication techniques, including the support for third-party OAuth2 providers such as Facebook, and deploy the application using Windows Server, SQL Server, and the IIS/Kestrel reverse proxy.
Table of Contents (17 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

Data validation


If we take a look at our current .NET Core with Angular project, we can see how there's good news and there's bad news: the good news is that we already have some decent forms in place--the QuizEditComponent, QuestionEditComponent, AnswerEditComponent, and ResultEditComponent are nothing more, nothing less than wrappers for forms. They also provide a rather good-looking user experience since the restyling performed in Chapter 6, Style Sheets and UI Layout, do we really need anything else?

The answer is yes. When we first laid down these forms back in Chapter 5, Client-Server Interactions, we entirely skipped the part in which we were supposed to validate the user-submitted data, postponing that task to a not-so-distant future; we don't even have a proper <form> element in our templates! Well, guess what? The time has finally come.

Forms in Angular

Let's try to summarize the most blatant shortages of our current form-less approach:

  • We cannot keep track of the global form...