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

Introduction


In this chapter, we will learn how to create a data access layer with the object relational mapper called Entity Framework. We will configure its IOC life cycle, create a CRUD with and without stored procedures, and log and manage exceptions.

We will first explain some concepts used internally by Entity Framework that are recurrent in ORMs, and then we will see which of the EF features no longer exist in EF.

ORM is a library that maps data classes with datatables in a database, such as Customer class maps with a Customer table in a database, BankTransaction class maps with a BankTransaction table in a database, and so on.

ORM libraries help developers build data access layers without the hassle of table query complexities. For example, they can help you set the IsDeleted field in the next 20 rows of a table to False. It's so easy to write these kinds of queries with ORM libraries.

DbContext

An ORM uses the code representation of a SQL schema to request databases. Originally, they...