ASP.NET Core 2 Fundamentals

By : Gumus, T. S. Ragupathi

2 (1)

Buy this Book

ASP.NET Core 2 Fundamentals

2 (1)

By: Gumus, T. S. Ragupathi

Buy this Book

Overview of this book

The book sets the stage with an introduction to web applications and helps you build an understanding of the tried-and-true MVC architecture. You learn all about views, from what is the Razor view engine to tagging helpers. You gain insight into what models are, how to bind them, and how to migrate database using the correct model. As you get comfortable with the world of ASP.NET, you learn about validation and routing. You also learn the advanced concepts, such as designing Rest Buy (a RESTful shopping cart application), creating entities for it, and creating EF context and migrations. By the time you are done reading the book, you will be able to optimally use ASP.NET to develop, unit test, and deploy applications like a pro.

Preface

Who this book is for

What this book covers

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Free Chapter

Setting the Stage

Introduction to Web Applications

Introduction to ASP.NET

Summary

Controllers

Role of the Controller in ASP.NET MVC Applications

Introduction to Routing

Installing the ASP.NET Core NuGet Package in Your Application

Our First Controller

Adding Views

Adding Models

Passing Data from the Controller to the View

Filters

Summary

Views

The View Engine and the Razor View Engine

Layout

Generating HTML

Partial View

View Components

Tag Helpers

Summary

Models

Introduction to Models

Model Binding

Entity Framework

Using Entity Framework in ASP.NET MVC Applications

Database Migration

Summary

Validation

Introduction to Validation

Client-Side and Server-Side Validation

Server-Side Validation

Client-Side Validation

Implementation

Summary

Routing

Convention-Based Routing

Attribute-Based Routing

Route Attribute at the Controller Level

Route Constraints

Summary

Rest Buy

Designing Rest Buy

Creating the Entities

Create EF Context and Migrations

Summary

Adding Features, Testing, and Deployment

Adding the Registration Feature

Creating a Unit Test

Upgrading Our Project to Bootstrap 4

Deploying RestBuy to Azure

Summary

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Entity Framework

If we are using a relational database, there is an impedance mismatch with the data and our domain classes, since the data is relational whereas our domain is composed of objects. The aim of using ORM is to eliminate (or hide) this mismatch so that we can totally ignore the persistence problems and instead focus on our code rather than trying to generate pesky SQL statements. Having said that, there are many valid cases to drop back to SQL statements, such as performance tuning cases or complex reports.

Entity Framework (EF) is the Object Relational Mapping (ORM) framework that enables developers to work on domain-specific objects directly for data access instead of working on database queries. This reduces a lot of the code complexity in the data access layer of the application.

Before discussing Entity Framework and its features, let us pause for a moment...