Book Image

Modern Web Development with ASP.NET Core 3 - Second Edition

By : Ricardo Peres
Book Image

Modern Web Development with ASP.NET Core 3 - Second Edition

By: Ricardo Peres

Overview of this book

ASP.NET has been the preferred choice of web developers for a long time. With ASP.NET Core 3, Microsoft has made internal changes to the framework along with introducing new additions that will change the way you approach web development. This second edition has been thoroughly updated to help you make the most of the latest features in the framework, right from gRPC and conventions to Blazor, which has a new chapter dedicated to it. You’ll begin with an overview of the essential topics, exploring the Model-View-Controller (MVC) pattern, various platforms, dependencies, and frameworks. Next, you’ll learn how to set up and configure the MVC environment, before delving into advanced routing options. As you advance, you’ll get to grips with controllers and actions to process requests, and later understand how to create HTML inputs for models. Moving on, you'll discover the essential aspects of syntax and processes when working with Razor. You'll also get up to speed with client-side development and explore the testing, logging, scalability, and security aspects of ASP.NET Core. Finally, you'll learn how to deploy ASP.NET Core to several environments, such as Azure, Amazon Web Services (AWS), and Docker. By the end of the book, you’ll be well versed in development in ASP.NET Core and will have a deep understanding of how to interact with the framework and work cross-platform.
Table of Contents (26 chapters)
Section 1: The Fundamentals of ASP.NET Core 3
Section 2: Improving Productivity
Section 3: Advanced Topics
Appendix A: The dotnet Tool

View compilation

Normally, a view is only compiled when it is first used—that is, a controller action returns ViewResult. What this means is that any eventual syntax errors will only be caught at runtime when the framework is rendering the page; plus, even if there are no errors, ASP.NET Core takes some time (in the order of milliseconds, mind you) to compile the view. This does not need to be the case, however.

Unlike previous versions, ASP.NET Core 3 does not recompile a view when the Razor file changes, by default. For that, you have to restart your server. If you want to have this behavior back, you need to add a reference to the Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation NuGet package and add the following line to the services configuration:


Or, you may prefer to enable this only for the debug version of your app, which excludes it from production builds. In that case, you can do...