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C# 8.0 and .NET Core 3.0 – Modern Cross-Platform Development电子书

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作       者:Mark J. Price

出  版  社:Packt Publishing

出版时间:2019-10-31

字       数:1856.8万

所属分类: 进口书 > 外文原版书 > 电脑/网络

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Learn the fundamentals, practical applications, and latest features of C# 8.0 and .NET Core 3.0 from expert teacher Mark J. Price. Key Features * Build modern, cross-platform applications with .NET Core 3.0 * Get up to speed with C#, and up to date with all the latest features of C# 8.0 * Start creating professional web applications with ASP.NET Core 3.0 Book Description In C# 8.0 and .NET Core 3.0 – Modern Cross-Platform Development, Fourth Edition, expert teacher Mark J. Price gives you everything you need to start programming C# applications. This latest edition uses the popular Visual Studio Code editor to work across all major operating systems. It is fully updated and expanded with new chapters on Content Management Systems (CMS) and machine learning with ML.NET. The book covers all the topics you need. Part 1 teaches the fundamentals of C#, including object-oriented programming, and new C# 8.0 features such as nullable reference types, simplified switch pattern matching, and default interface methods. Part 2 covers the .NET Standard APIs, such as managing and querying data, monitoring and improving performance, working with the filesystem, async streams, serialization, and encryption. Part 3 provides examples of cross-platform applications you can build and deploy, such as web apps using ASP.NET Core or mobile apps using Xamarin.Forms. The book introduces three technologies for building Windows desktop applications including Windows Forms, Windows Presentation Foundation (WPF), and Universal Windows Platform (UWP) apps, as well as web applications, web services, and mobile apps. What you will learn * Build cross-platform applications for Windows, macOS, Linux, iOS, and Android * Explore application development with C# 8.0 and .NET Core 3.0 * Explore ASP.NET Core 3.0 and create professional web applications * Learn object-oriented programming and C# multitasking * Query and manipulate data using LINQ * Use Entity Framework Core and work with relational databases * Discover Windows app development using the Universal Windows Platform and XAML * Build mobile applications for iOS and Android using Xamarin.Forms Who this book is for Readers with some prior programming experience or with a science, technology, engineering, or mathematics (STEM) background, who want to gain a solid foundation with C# 8.0 and .NET Core 3.0.
目录展开

Hello, C#! Welcome, .NET!

Setting up your development environment

Using Visual Studio Code for cross-platform development

Using Visual Studio 2019 for Windows app development

Using Visual Studio for Mac for mobile development

Recommended tools for chapters

Deploying cross-platform

Understanding Microsoft Visual Studio Code versions

Downloading and installing Visual Studio Code

Installing other extensions

Understanding .NET

Understanding the .NET Framework

Understanding the Mono and Xamarin projects

Understanding .NET Core

Understanding future versions of .NET

Understanding .NET Core support

What is different about .NET Core?

Understanding .NET Standard

.NET platforms and tools used by the book editions

Understanding intermediate language

Understanding .NET Native

Comparing .NET technologies

Building console apps using Visual Studio Code

Writing code using Visual Studio Code

Compiling and running code using dotnet CLI

Downloading solution code from a GitHub repository

Using Git with Visual Studio Code

Cloning the book solution code repository

Looking for help

Reading Microsoft documentation

Getting help for the dotnet tool

Getting definitions of types and their members

Looking for answers on Stack Overflow

Searching for answers using Google

Subscribing to the official .NET blog

Practicing and exploring

Exercise 1.1 – Test your knowledge

Exercise 1.2 – Practice C# anywhere

Exercise 1.3 – Explore topics

Summary

Speaking C#

Introducing C#

Understanding language versions and features

C# 1.0

C# 2.0

C# 3.0

C# 4.0

C# 5.0

C# 6.0

C# 7.0

C# 7.1

C# 7.2

C# 7.3

C# 8.0

Discovering your C# compiler versions

Enabling a specific language version compiler

Understanding C# basics

Understanding C# grammar

Statements

Comments

Blocks

Understanding C# vocabulary

Help for writing correct code

Verbs are methods

Nouns are types, fields, and variables

Revealing the extent of the C# vocabulary

Working with variables

Naming things and assigning values

Literal values

Storing text

Understanding verbatim strings

Storing numbers

Storing whole numbers

Storing real numbers

Writing code to explore number sizes

Comparing double and decimal types

Storing Booleans

Using Visual Studio Code workspaces

Storing any type of object

Storing dynamic types

Declaring local variables

Specifying and inferring the type of a local variable

Getting default values for types

Storing multiple values

Working with null values

Making a value type nullable

Understanding nullable reference types

Enabling nullable and non-nullable reference types

Declaring non-nullable variables and parameters

Checking for null

Exploring console applications further

Displaying output to the user

Formatting using numbered positional arguments

Formatting using interpolated strings

Understanding format strings

Getting text input from the user

Importing a namespace

Simplifying the usage of the console

Getting key input from the user

Getting arguments

Setting options with arguments

Handling platforms that do not support an API

Practicing and exploring

Exercise 2.1 – Test your knowledge

Exercise 2.2 – Practice number sizes and ranges

Exercise 2.3 – Explore topics

Summary

Controlling Flow and Converting Types

Operating on variables

Unary operators

Binary arithmetic operators

Assignment operators

Logical operators

Conditional logical operators

Bitwise and binary shift operators

Miscellaneous operators

Understanding selection statements

Branching with the if statement

Why you should always use braces with if statements

Pattern matching with the if statement

Branching with the switch statement

Pattern matching with the switch statement

Simplifying switch statements with switch expressions

Understanding iteration statements

Looping with the while statement

Looping with the do statement

Looping with the for statement

Looping with the foreach statement

Understanding how foreach works internally

Casting and converting between types

Casting numbers implicitly and explicitly

Converting with the System.Convert type

Rounding numbers

Understanding the default rounding rules

Taking control of rounding rules

Converting from any type to a string

Converting from a binary object to a string

Parsing from strings to numbers or dates and times

Avoiding exceptions using the TryParse method

Handling exceptions when converting types

Wrapping error-prone code in a try block

Catching all exceptions

Catching specific exceptions

Checking for overflow

Throwing overflow exceptions with the checked statement

Disabling compiler overflow checks with the unchecked statement

Practicing and exploring

Exercise 3.1 – Test your knowledge

Exercise 3.2 – Explore loops and overflow

Exercise 3.3 – Practice loops and operators

Exercise 3.4 – Practice exception handling

Exercise 3.5 – Test your knowledge of operators

Exercise 3.6 – Explore topics

Summary

Writing, Debugging, and Testing Functions

Writing functions

Writing a times table function

Writing a function that returns a value

Writing mathematical functions

Converting numbers from ordinal to cardinal

Calculating factorials with recursion

Documenting functions with XML comments

Debugging during development

Creating code with a deliberate bug

Setting a breakpoint

Navigating with the debugging toolbar

Debugging windows

Stepping through code

Customizing breakpoints

Logging during development and runtime

Instrumenting with Debug and Trace

Writing to the default trace listener

Configuring trace listeners

Switching trace levels

Unit testing functions

Creating a class library that needs testing

Writing unit tests

Running unit tests

Practicing and exploring

Exercise 4.1 – Test your knowledge

Exercise 4.2 – Practice writing functions with debugging and unit testing

Exercise 4.3 – Explore topics

Summary

Building Your Own Types with Object-Oriented Programming

Talking about object-oriented programming

Building class libraries

Creating a class library

Defining a class

Understanding members

Instantiating a class

Referencing an assembly

Importing a namespace to use a type

Managing multiple files

Understanding objects

Inheriting from System.Object

Storing data within fields

Defining fields

Understanding access modifiers

Setting and outputting field values

Storing a value using an enum type

Storing multiple values using an enum type

Storing multiple values using collections

Making a field static

Making a field constant

Making a field read-only

Initializing fields with constructors

Setting fields with default literals

Writing and calling methods

Returning values from methods

Combining multiple returned values using tuples

Naming the fields of a tuple

Inferring tuple names

Deconstructing tuples

Defining and passing parameters to methods

Overloading methods

Passing optional parameters and naming arguments

Controlling how parameters are passed

Splitting classes using partial

Controlling access with properties and indexers

Defining readonly properties

Defining settable properties

Defining indexers

Practicing and exploring

Exercise 5.1 – Test your knowledge

Exercise 5.2 – Explore topics

Summary

Implementing Interfaces and Inheriting Classes

Setting up a class library and console application

Simplifying methods

Implementing functionality using methods

Implementing functionality using operators

Implementing functionality using local functions

Raising and handling events

Calling methods using delegates

Defining and handling delegates

Defining and handling events

Implementing interfaces

Common interfaces

Comparing objects when sorting

Comparing objects using a separate class

Defining interfaces with default implementations

Making types safely reusable with generics

Working with generic types

Working with generic methods

Managing memory with reference and value types

Working with struct types

Releasing unmanaged resources

Ensuring that Dispose is called

Inheriting from classes

Extending classes

Hiding members

Overriding members

Preventing inheritance and overriding

Understanding polymorphism

Casting within inheritance hierarchies

Implicit casting

Explicit casting

Avoiding casting exceptions

Inheriting and extending .NET types

Inheriting exceptions

Extending types when you can't inherit

Using static methods to reuse functionality

Using extension methods to reuse functionality

Practicing and exploring

Exercise 6.1 – Test your knowledge

Exercise 6.2 – Practice creating an inheritance hierarchy

Exercise 6.3 – Explore topics

Summary

Understanding and Packaging .NET Types

Introducing .NET Core 3.0

.NET Core 1.0

.NET Core 1.1

.NET Core 2.0

.NET Core 2.1

.NET Core 2.2

.NET Core 3.0

Understanding .NET Core components

Understanding assemblies, packages, and namespaces

Understanding dependent assemblies

Understanding the Microsoft .NET Core App platform

Understanding NuGet packages

Understanding frameworks

Importing a namespace to use a type

Relating C# keywords to .NET types

Sharing code cross-platform with .NET Standard class libraries

Publishing your applications for deployment

Creating a console application to publish

Understanding dotnet commands

Creating new projects

Managing projects

Publishing a self-contained app

Decompiling assemblies

Packaging your libraries for NuGet distribution

Referencing a NuGet package

Fixing dependencies

Packaging a library for NuGet

Testing your package

Porting from .NET Framework to .NET Core

Could you port?

Should you port?

Differences between .NET Framework and .NET Core

Understanding the .NET Portability Analyzer

Using non-.NET Standard libraries

Practicing and exploring

Exercise 7.1 – Test your knowledge

Exercise 7.2 – Explore topics

Summary

Working with Common .NET Types

Working with numbers

Working with big integers

Working with complex numbers

Working with text

Getting the length of a string

Getting the characters of a string

Splitting a string

Getting part of a string

Checking a string for content

Joining, formatting, and other string members

Building strings efficiently

Pattern matching with regular expressions

Checking for digits entered as text

Understanding the syntax of a regular expression

Examples of regular expressions

Splitting a complex comma-separated string

Storing multiple objects in collections

Common features of all collections

Understanding collection choices

Lists

Dictionaries

Stacks

Queues

Sets

Working with lists

Working with dictionaries

Sorting collections

Using specialized collections

Using immutable collections

Working with spans, indexes, and ranges

Using memory efficiently using spans

Identifying positions with the Index type

Identifying ranges with the Range type

Using indexes and ranges

Working with network resources

Working with URIs, DNS, and IP addresses

Pinging a server

Working with types and attributes

Versioning of assemblies

Reading assembly metadata

Creating custom attributes

Doing more with reflection

Internationalizing your code

Practicing and exploring

Exercise 8.1 – Test your knowledge

Exercise 8.2 – Practice regular expressions

Exercise 8.3 – Practice writing extension methods

Exercise 8.4 – Explore topics

Summary

Working with Files, Streams, and Serialization

Managing the filesystem

Handling cross-platform environments and filesystems

Managing drives

Managing directories

Managing files

Managing paths

Getting file information

Controlling how you work with files

Reading and writing with streams

Writing to text streams

Writing to XML streams

Disposing of file resources

Compressing streams

Compressing with the Brotli algorithm

High-performance streams using pipelines

Asynchronous streams

Encoding and decoding text

Encoding strings as byte arrays

Encoding and decoding text in files

Serializing object graphs

Serializing as XML

Generating compact XML

Deserializing XML files

Serializing with JSON

High-performance JSON processing

Practicing and exploring

Exercise 9.1 – Test your knowledge

Exercise 9.2 – Practice serializing as XML

Exercise 9.3 – Explore topics

Summary

Protecting Your Data and Applications

Understanding the vocabulary of protection

Keys and key sizes

IVs and block sizes

Salts

Generating keys and IVs

Encrypting and decrypting data

Encrypting symmetrically with AES

Hashing data

Hashing with the commonly used SHA256

Signing data

Signing with SHA256 and RSA

Generating random numbers

Generating random numbers for games

Generating random numbers for cryptography

What's new in cryptography

Authenticating and authorizing users

Implementing authentication and authorization

Protecting application functionality

Practicing and exploring

Exercise 10.1 – Test your knowledge

Exercise 10.2 – Practice protecting data with encryption and hashing

Exercise 10.3 – Practice protecting data with decryption

Exercise 10.4 – Explore topics

Summary

Working with Databases Using Entity Framework Core

Understanding modern databases

Understanding Entity Framework

Using a sample relational database

Setting up SQLite for macOS

Setting up SQLite for Windows

Creating the Northwind sample database for SQLite

Managing the Northwind sample database with SQLiteStudio

Setting up EF Core

Choosing an EF Core data provider

Connecting to the database

Defining EF Core models

EF Core conventions

EF Core annotation attributes

EF Core Fluent API

Understanding data seeding

Building an EF Core model

Defining the Category and Product entity classes

Defining the Northwind database context class

Querying EF Core models

Filtering and sorting products

Logging EF Core

Logging with query tags

Pattern matching with Like

Defining global filters

Loading patterns with EF Core

Eager loading entities

Enabling lazy loading

Explicit loading entities

Manipulating data with EF Core

Inserting entities

Updating entities

Deleting entities

Pooling database contexts

Transactions

Defining an explicit transaction

Practicing and exploring

Exercise 11.1 – Test your knowledge

Exercise 11.2 – Practice exporting data using different serialization formats

Exercise 11.3 – Explore the EF Core documentation

Summary

Querying and Manipulating Data Using LINQ

Writing LINQ queries

Extending sequences with the Enumerable class

Filtering entities with Where

Targeting a named method

Simplifying the code by removing the explicit delegate instantiation

Targeting a lambda expression

Sorting entities

Sorting by a single property using OrderBy

Sorting by a subsequent property using ThenBy

Filtering by type

Working with sets and bags using LINQ

Using LINQ with EF Core

Building an EF Core model

Filtering and sorting sequences

Projecting sequences into new types

Joining and grouping sequences

Aggregating sequences

Sweetening LINQ syntax with syntactic sugar

Using multiple threads with parallel LINQ

Creating an app that benefits from multiple threads

Using Windows 10

Using macOS

For all operating systems

Creating your own LINQ extension methods

Working with LINQ to XML

Generating XML using LINQ to XML

Reading XML using LINQ to XML

Practicing and exploring

Exercise 12.1 – Test your knowledge

Exercise 12.2 – Practice querying with LINQ

Exercise 12.3 – Explore topics

Summary

Improving Performance and Scalability Using Multitasking

Understanding processes, threads, and tasks

Monitoring performance and resource usage

Evaluating the efficiency of types

Monitoring performance and memory use

Implementing the Recorder class

Measuring the efficiency of processing strings

Running tasks asynchronously

Running multiple actions synchronously

Running multiple actions asynchronously using tasks

Waiting for tasks

Continuing with another task

Nested and child tasks

Synchronizing access to shared resources

Accessing a resource from multiple threads

Applying a mutually exclusive lock to a resource

Understanding the lock statement and avoiding deadlocks

Making CPU operations atomic

Applying other types of synchronization

Understanding async and await

Improving responsiveness for console apps

Improving responsiveness for GUI apps

Improving scalability for web applications and web services

Common types that support multitasking

Using await in catch blocks

Working with async streams

Practicing and exploring

Exercise 13.1 – Test your knowledge

Exercise 13.2 – Explore topics

Summary

Practical Applications of C# and .NET

Understanding app models for C# and .NET

Building websites using ASP.NET Core

Building websites using a web content management system

Understanding web applications

Building and consuming web services

Building intelligent apps

New features for ASP.NET Core

ASP.NET Core 1.0

ASP.NET Core 1.1

ASP.NET Core 2.0

ASP.NET Core 2.1

ASP.NET Core 2.2

ASP.NET Core 3.0

Understanding SignalR

Understanding Blazor

JavaScript and friends

Silverlight – C# and .NET using a plugin

WebAssembly – a target for Blazor

Blazor on the server-side or client-side

Understanding the bonus chapters

Building Windows desktop apps

Building cross-platform mobile apps

Building an entity data model for Northwind

Creating a class library for Northwind entity models

Creating a class library for a Northwind database context

Summary

Building Websites Using ASP.NET Core Razor Pages

Understanding web development

Understanding HTTP

Client-side web development

Understanding ASP.NET Core

Classic ASP.NET versus modern ASP.NET Core

Creating an ASP.NET Core project

Testing and securing the website

Enabling static and default files

Exploring Razor Pages

Enabling Razor Pages

Defining a Razor Page

Using shared layouts with Razor Pages

Using code-behind files with Razor Pages

Using Entity Framework Core with ASP.NET Core

Configure Entity Framework Core as a service

Manipulating data using Razor pages

Enabling a model to insert entities

Defining a form to insert new suppliers

Using Razor class libraries

Using a Razor class library

Practicing and exploring

Exercise 15.1 – Test your knowledge

Exercise 15.2 – Practice building a data-driven web page

Exercise 15.3 – Explore topics

Summary

Building Websites Using the Model-View-Controller Pattern

Setting up an ASP.NET Core MVC website

Creating and exploring an ASP.NET Core MVC website

Reviewing the ASP.NET Core MVC website

Reviewing the ASP.NET Core Identity database

Exploring an ASP.NET Core MVC website

Understanding ASP.NET Core MVC startup

Understanding the default MVC route

Understanding controllers and actions

Understanding filters

Using a filter to secure an action method

Using a filter to cache a response

Using a filter to define a custom route

Understanding entity and view models

Understanding views

Customizing an ASP.NET Core MVC website

Defining a custom style

Setting up the category images

Understanding Razor syntax

Defining a typed view

Testing the customized home page

Passing parameters using a route value

Understanding model binders

Validating the model

Understanding view helper methods

Querying a database and using display templates

Improving scalability using asynchronous tasks

Making controller action methods asynchronous

Using other project templates

Installing additional template packs

Practicing and exploring

Exercise 16.1 – Test your knowledge

Exercise 16.2 – Practice implementing MVC by implementing a category detail page

Exercise 16.3 – Practice improving scalability by understanding and implementing async action methods

Exercise 16.4 – Explore topics

Summary

Building Websites Using a Content Management System

Understanding the benefits of a CMS

Understanding basic CMS features

Understanding enterprise CMS features

Understanding CMS platforms

Understanding Piranha CMS

Creating and exploring a Piranha CMS website

Editing site and page content

Creating a new top-level page

Creating a new child page

Reviewing the blog archive

Exploring authentication and authorization

Exploring configuration

Testing the new content

Understanding routing

Understanding media

Understanding the application service

Understanding content types

Understanding component types

Understanding standard fields

Reviewing some content types

Understanding standard blocks

Reviewing component types and standard blocks

Defining components, content types, and templates

Reviewing the standard page type

Reviewing the blog archive page type

Defining custom content and component types

Creating custom regions

Creating an entity data model

Creating custom page types

Creating custom view models

Defining custom content templates for content types

Configuring start up and importing from a database

Testing the Northwind CMS website

Uploading images and creating the catalog root

Importing category and product content

Managing catalog content

Reviewing how Piranha stores content

Practicing and exploring

Exercise 17.1 – Test your knowledge

Exercise 17.2 – Practice defining a block type for rendering YouTube videos

Exercise 17.3 – Explore topics

Summary

Building and Consuming Web Services

Building web services using ASP.NET Core Web API

Understanding web service acronyms

Creating an ASP.NET Core Web API project

Reviewing the web service's functionality

Creating a web service for the Northwind database

Creating data repositories for entities

Implementing a Web API controller

Configuring the customers repository and Web API controller

Specifying problem details

Documenting and testing web services

Testing GET requests using a browser

Testing HTTP requests with REST Client extension

Enabling Swagger

Testing requests with Swagger UI

Consuming services using HTTP clients

Understanding HttpClient

Configuring HTTP clients using HttpClientFactory

Enabling Cross-Origin Resource Sharing

Implementing advanced features

Implementing Health Check API

Implementing Open API analyzers and conventions

Understanding endpoint routing

Configuring endpoint routing

Understanding other communication technologies

Understanding Windows Communication Foundation (WCF)

Understanding gRPC

Practicing and exploring

Exercise 18.1 – Test your knowledge

Exercise 18.2 – Practice creating and deleting customers with HttpClient

Exercise 18.3 – Explore topics

Summary

Building Intelligent Apps Using Machine Learning

Understanding machine learning

Understanding the machine learning life cycle

Understanding datasets for training and testing

Understanding machine learning tasks

Understanding Microsoft Azure Machine Learning

Understanding ML.NET

Understanding Infer.NET

Understanding ML.NET learning pipelines

Understanding model training concepts

Understanding missing values and key types

Understanding features and labels

Making product recommendations

Problem analysis

Data gathering and processing

Creating the NorthwindML website project

Creating the data and view models

Implementing the controller

Training the recommendation models

Implementing a shopping cart with recommendations

Testing the product recommendations website

Practicing and exploring

Exercise 19.1 – Test your knowledge

Exercise 19.2 – Practice with samples

Exercise 19.3 – Explore topics

Summary

Building Windows Desktop Apps

Understanding legacy Windows application platforms

Understanding .NET Core 3.0 support for legacy Windows platforms

Installing Microsoft Visual Studio 2019 for Windows

Working with Windows Forms

Building a new Windows Forms application

Reviewing a new Windows Forms application

Migrating a legacy Windows Forms application

Migrating a Windows Forms app

Migrating WPF apps to .NET Core 3.0

Migrating legacy apps using the Windows Compatibility Pack

Understanding the modern Windows platform

Understanding Universal Windows Platform

Understanding Fluent Design System

Filling user interface elements with acrylic brushes

Connecting user interface elements with animations

Parallax views and Reveal lighting

Understanding XAML Standard

Simplifying code using XAML

Choosing common controls

Understanding markup extensions

Creating a modern Windows app

Enabling developer mode

Creating a UWP project

Exploring common controls and acrylic brushes

Exploring Reveal

Installing more controls

Using resources and templates

Sharing resources

Replacing a control template

Using data binding

Binding to elements

Creating an HTTP service to bind to

Downloading the web service's certificate

Binding to data from a secure HTTP service

Creating the user interface to call the HTTP service

Converting numbers to images

Testing the HTTP service data binding

Practicing and exploring

Exercise 20.1 – Test your knowledge

Exercise 20.2 – Explore topics

Summary

Building Cross-Platform Mobile Apps Using Xamarin.Forms

Understanding Xamarin and Xamarin.Forms

How Xamarin.Forms extends Xamarin

Mobile first, cloud first

Understanding additional functionality

Understanding the INotificationPropertyChanged interface

Understanding dependency services

Understanding Xamarin.Forms user interface components

Understanding the ContentPage view

Understanding the Entry and Editor controls

Understanding the ListView control

Building mobile apps using Xamarin.Forms

Adding Android SDKs

Creating a Xamarin.Forms solution

Creating an entity model with two-way data binding

Creating a component for dialing phone numbers

Creating views for the customers list and customer details

Implementing the customer list view

Implementing the customer detail view

Setting the main page for the mobile app

Testing the mobile app

Consuming a web service from a mobile app

Configuring the web service to allow insecure requests

Configuring the iOS app to allow insecure connections

Adding NuGet packages for consuming a web service

Getting customers from the web service

Practicing and exploring

Exercise 21.1 – Test your knowledge

Exercise 21.2 - Explore topics

Summary

Epilogue

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