Book Image

ASP.NET Core MVC 2.0 Cookbook

By : Jason De Oliveira, Engin Polat, Stephane Belkheraz
Book Image

ASP.NET Core MVC 2.0 Cookbook

By: Jason De Oliveira, Engin Polat, Stephane Belkheraz

Overview of this book

The ASP.NET Core 2.0 Framework has been designed to meet all the needs of today’s web developers. It provides better control, support for test-driven development, and cleaner code. Moreover, it’s lightweight and allows you to run apps on Windows, OSX and Linux, making it the most popular web framework with modern day developers. This book takes a unique approach to web development, using real-world examples to guide you through problems with ASP.NET Core 2.0 web applications. It covers Visual Studio 2017- and ASP.NET Core 2.0-specifc changes and provides general MVC development recipes. It explores setting up .NET Core, Visual Studio 2017, Node.js modules, and NuGet. Next, it shows you how to work with Inversion of Control data pattern and caching. We explore everyday ASP.NET Core MVC 2.0 patterns and go beyond it into troubleshooting. Finally, we lead you through migrating, hosting, and deploying your code. By the end of the book, you’ll not only have explored every aspect of ASP.NET Core MVC 2.0, you’ll also have a reference you can keep coming back to whenever you need to get the job done.
Table of Contents (26 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

Writing an EF provider


In this recipe, we will learn how to create a new EF provider. It can be used to create a relational or a nonrelational provider.

Getting ready

We will import the Microsoft.EntityFrameworkCore.Relational library in project.json or NuGet.

How to do it...

  1. First, let's get some sample code to override, and which allows us to create a new EF provider. We can find the template at https://github.com/aspnet/EntityFramework.Docs/tree/master/docs/internals/sample.
  2. Next, we can add this new provider by creating an extension method on DbContextOptionBuilder as follows:
public static class MyProviderDbContextOptionsExtensions
{
 public static DbContextOptionsBuilder UseMyProvider(
 this DbContextOptionsBuilder optionsBuilder, string connectionString)
 {
 ((IDbContextOptionsBuilderInfrastructure)optionsBuilder)
 .AddOrUpdateExtension(
 new MyProviderOptionsExtension
 {
 ConnectionString = connectionString
 });
 return optionsBuilder;
 }
}

The UseMyProvider() method can also be used to...