دانلود کتاب C# 11 and .NET 7 – Modern Cross-Platform Development Fundamentals: Start building websites and services with ASP.NET Core 7, Blazor, and EF Core 7, 7th Edition

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Cover Copyright Contributors Quick Chapter Reference Table of Contents Preface Chapter 1: Hello, C#! Welcome, .NET! Setting up your development environment Choosing the appropriate tool and application type for learning Pros and cons of the .NET Interactive Notebooks extension Using Visual Studio Code for cross-platform development Using GitHub Codespaces for development in the cloud Using Visual Studio for Mac for general development Using Visual Studio for Windows for general development What I used Deploying cross-platform Downloading and installing Visual Studio 2022 for Windows Microsoft Visual Studio for Windows keyboard shortcuts Downloading and installing Visual Studio Code Installing other extensions Managing Visual Studio Code extensions at the command line Understanding Microsoft Visual Studio Code versions Microsoft Visual Studio Code keyboard shortcuts Understanding .NET Understanding .NET Framework Understanding the Mono, Xamarin, and Unity projects Understanding .NET Core Understanding the journey to one .NET Understanding Blazor WebAssembly versioning Understanding .NET support Understanding .NET Runtime and .NET SDK versions Listing and removing versions of .NET What is different about modern .NET? Windows desktop development Web development Database development Understanding .NET Standard .NET platforms and tools used by the C# and .NET book editions Topics covered by Apps and Services with .NET 7 Understanding intermediate language Comparing .NET technologies Building console apps using Visual Studio 2022 Managing multiple projects using Visual Studio 2022 Writing code using Visual Studio 2022 Compiling and running code using Visual Studio Understanding the compiler-generated folders and files Understanding top-level programs Implicitly imported namespaces Revealing the hidden code by throwing an exception Adding a second project using Visual Studio 2022 Building console apps using Visual Studio Code Managing multiple projects using Visual Studio Code Writing code using Visual Studio Code Compiling and running code using the dotnet CLI Adding a second project using Visual Studio Code Exploring code using .NET Interactive Notebooks Using .NET Interactive Notebooks for the code in this book Reviewing the folders and files for projects Understanding the common folders and files Understanding the solution code on GitHub Making good use of the GitHub repository for this book Raising issues with the book Giving me feedback Downloading solution code from the GitHub repository Using Git with Visual Studio Code and the command line 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 Watching Scott Hanselman’s videos A companion book to continue your learning journey Practicing and exploring Exercise 1.1 – Test your knowledge Exercise 1.2 – Practice C# anywhere with a browser Exercise 1.3 – Explore topics Exercise 1.4 – Explore themes of modern .NET Summary Chapter 2: Speaking C# Introducing the C# language Understanding language versions and features Project COOL C# 1 C# 1.2 C# 2 C# 3 C# 4 C# 5 C# 6 C# 7.0 C# 7.1 C# 7.2 C# 7.3 C# 8 C# 9 C# 10 C# 11 Understanding C# standards Discovering your C# compiler versions How to output the SDK version Enabling a specific language version compiler Switching the C# compiler for .NET 6 Understanding C# grammar and vocabulary Showing the compiler version Understanding C# grammar Statements Comments Blocks Examples of statements and blocks Understanding C# vocabulary Comparing programming languages to human languages Changing the color scheme for C# syntax Help for writing correct code Importing namespaces Implicitly and globally importing namespaces Verbs are methods Nouns are types, variables, fields, and properties Revealing the extent of the C# vocabulary Working with variables Naming things and assigning values Literal values Storing text Verbatim strings Raw string literals Raw interpolated string literals Summarizing options for storing text Storing numbers Storing whole numbers Exploring whole numbers Storing real numbers Writing code to explore number sizes Comparing double and decimal types Storing Booleans Storing any type of object Storing dynamic types Declaring local variables Specifying the type of a local variable Inferring the type of a local variable Using target-typed new to instantiate objects Getting and setting the default values for types Exploring more about console apps Displaying output to the user Formatting using numbered positional arguments Formatting using interpolated strings Understanding format strings Getting text input from the user Simplifying the usage of the console Importing a static type for a single file Importing a static type for all code files in a project Getting key input from the user Passing arguments to a console app Setting options with arguments Handling platforms that do not support an API Understanding async and await Improving responsiveness for console apps Practicing and exploring Exercise 2.1 – Test your knowledge Exercise 2.2 – Test your knowledge of number types Exercise 2.3 – Practice number sizes and ranges Exercise 2.4 – Explore topics Summary Chapter 3: Controlling Flow, Converting Types, and Handling Exceptions Operating on variables Exploring unary operators Exploring binary arithmetic operators Assignment operators Exploring logical operators Exploring conditional logical operators Exploring 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 Storing multiple values in an array Working with single-dimensional arrays Working with multi-dimensional arrays Working with jagged arrays List pattern matching with arrays Summarizing arrays 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 Errors using Parse Avoiding exceptions using the TryParse method Handling exceptions Wrapping error-prone code in a try block Catching all exceptions Catching specific exceptions Catching with filters 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 Chapter 4: Writing, Debugging, and Testing Functions Writing functions Understanding top-level programs and functions Times table example Writing a times table function A brief aside about arguments and parameters Writing a function that returns a value Converting numbers from cardinal to ordinal Calculating factorials with recursion Documenting functions with XML comments Using lambdas in function implementations Debugging during development Using the Visual Studio Code integrated terminal during debugging Creating code with a deliberate bug Setting a breakpoint and starting debugging Using Visual Studio 2022 Navigating with the debugging toolbar Using Visual Studio Code Debugging windows Stepping through code Customizing breakpoints Hot reloading during development Hot reloading using Visual Studio 2022 Hot reloading using Visual Studio Code and the command line Logging during development and runtime Understanding logging options Instrumenting with Debug and Trace Writing to the default trace listener Configuring trace listeners Switching trace levels Adding packages to a project in Visual Studio 2022 Adding packages to a project in Visual Studio Code Reviewing project packages Logging information about your source code Unit testing Understanding types of testing Creating a class library that needs testing Writing unit tests Running unit tests using Visual Studio 2022 Running unit tests using Visual Studio Code Fixing the bug Throwing and catching exceptions in functions Understanding usage errors and execution errors Commonly thrown exceptions in functions Understanding the call stack Where to catch exceptions Rethrowing exceptions Implementing the tester-doer pattern Problems with the tester-doer pattern 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 Chapter 5: Building Your Own Types with Object-Oriented Programming Talking about OOP Building class libraries Creating a class library Defining a class in a namespace Understanding members Instantiating a class Importing a namespace to use a type Avoiding a namespace conflict with a using alias Renaming a type with a using alias 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 Understanding generic collections Making a field static Making a field constant Making a field read-only Initializing fields with constructors Defining multiple constructors Writing and calling methods Returning values from methods Combining multiple returned values using tuples C# language support for tuples Naming the fields of a tuple Deconstructing tuples Deconstructing types Defining and passing parameters to methods Overloading methods Passing optional and named parameters Naming parameter values when calling methods Controlling how parameters are passed Simplified out parameters Understanding ref returns Splitting classes using partial Controlling access with properties and indexers Defining read-only properties Defining settable properties Requiring properties to be set during instantiation Defining indexers More about methods Implementing functionality using methods Implementing functionality using operators Implementing functionality using local functions Pattern matching with objects Defining flight passengers Enhancements to pattern matching in C# 9 or later Working with records Init-only properties Understanding records Positional data members in records Simplifying data members in records Practicing and exploring Exercise 5.1 – Test your knowledge Exercise 5.2 – Explore topics Summary Chapter 6: Implementing Interfaces and Inheriting Classes Setting up a class library and console application Making types safely reusable with generics Working with non-generic types Working with generic types 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 Implicit and explicit interface implementations Defining interfaces with default implementations Managing memory with reference and value types Defining reference and value types How reference and value types are stored in memory Equality of types Defining struct types Defining record struct types Releasing unmanaged resources Ensuring that Dispose is called Working with null values Making a value type nullable Understanding null-related initialisms Understanding nullable reference types Controlling the nullability warning check feature Declaring non-nullable variables and parameters Checking for null Checking for null in method parameters Inheriting from classes Extending classes to add functionality Hiding members Overriding members Inheriting from abstract classes Preventing inheritance and overriding Understanding polymorphism Casting within inheritance hierarchies Implicit casting Explicit casting Avoiding casting exceptions Using is to check a type Using as to cast a type 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 Writing better code Treating warnings as errors Understanding warning waves Using an analyzer to write better code Suppressing warnings Fixing the code Understanding common StyleCop recommendations Practicing and exploring Exercise 6.1 – Test your knowledge Exercise 6.2 – Practice creating an inheritance hierarchy Exercise 6.3 – Explore topics Summary Chapter 7: Packaging and Distributing .NET Types The road to .NET 7 .NET Core 1.0 .NET Core 1.1 .NET Core 2.0 .NET Core 2.1 .NET Core 2.2 .NET Core 3.0 .NET Core 3.1 .NET 5.0 .NET 6.0 .NET 7.0 Improving performance with .NET 5 and later Checking your .NET SDKs for updates Understanding .NET components Assemblies, NuGet packages, and namespaces What is a namespace? Dependent assemblies Microsoft .NET project SDKs Namespaces and types in assemblies NuGet packages Understanding frameworks Importing a namespace to use a type Relating C# keywords to .NET types Mapping C# aliases to .NET types Understanding native-sized integers Revealing the location of a type Sharing code with legacy platforms using .NET Standard Understanding defaults for class libraries with different SDKs Creating a .NET Standard 2.0 class library Controlling the .NET SDK Publishing your code for deployment Creating a console app to publish Understanding dotnet commands Creating new projects Getting information about .NET and its environment Managing projects Publishing a self-contained app Publishing a single-file app Reducing the size of apps using app trimming Enabling assembly-level trimming Enabling type-level and member-level trimming Decompiling .NET assemblies Decompiling using the ILSpy extension for Visual Studio 2022 Viewing source links with Visual Studio 2022 No, you cannot technically prevent decompilation Packaging your libraries for NuGet distribution Referencing a NuGet package Fixing dependencies Packaging a library for NuGet Publishing a package to a public NuGet feed Publishing a package to a private NuGet feed Exploring NuGet packages with a tool Testing your class library package Porting from .NET Framework to modern .NET Could you port? Should you port? Differences between .NET Framework and modern .NET .NET Portability Analyzer .NET Upgrade Assistant Using non-.NET Standard libraries Working with preview features Requiring preview features Enabling preview features Practicing and exploring Exercise 7.1 – Test your knowledge Exercise 7.2 – Explore topics Exercise 7.3 – Explore PowerShell Summary Chapter 8: Working with Common .NET Types Working with numbers Working with big integers Working with complex numbers Understanding quaternions Generating random numbers for games and similar apps 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 Regular expression performance improvements Understanding the syntax of a regular expression Examples of regular expressions Splitting a complex comma-separated string Activating regular expression syntax coloring Improving regular expression performance with source generators Storing multiple objects in collections Common features of all collections Improving performance by ensuring the capacity of a collection Understanding collection choices Lists Dictionaries Stacks Queues Sets Collection methods summary Working with lists Working with dictionaries Working with queues Sorting collections More specialized collections Working with a compact array of bit values Working with efficient lists Working with immutable collections Good practice with 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, ranges, and spans Working with network resources Working with URIs, DNS, and IP addresses Pinging a server 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 Chapter 9: 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 Understanding abstract and concrete streams Understanding storage streams Understanding function streams Understanding stream helpers Writing to text streams Writing to XML streams Simplifying disposal by using the using statement Compressing streams Working with tar archives Reading and writing tar entries Encoding and decoding text Encoding strings as byte arrays Encoding and decoding text in files Reading and writing with random access handles Serializing object graphs Serializing as XML Generating compact XML Deserializing XML files Serializing with JSON High-performance JSON processing Controlling JSON processing New JSON extension methods for working with HTTP responses Migrating from Newtonsoft to new JSON Practicing and exploring Exercise 9.1 – Test your knowledge Exercise 9.2 – Practice serializing as XML Exercise 9.3 – Explore topics Summary Chapter 10: Working with Data Using Entity Framework Core Understanding modern databases Understanding legacy Entity Framework Using the legacy Entity Framework 6.3 or later Understanding Entity Framework Core Understanding Database First and Code First Performance improvements in EF Core 7 Creating a console app for working with EF Core Using a sample relational database Using SQLite Setting up SQLite for Windows Setting up SQLite for macOS Setting up SQLite for other OSes Creating the Northwind sample database for SQLite If you are using Visual Studio 2022 Managing the Northwind sample database with SQLiteStudio Using the lightweight ADO.NET provider for SQLite Using SQL Server for Windows Setting up EF Core Choosing an EF Core database provider Connecting to a database Defining the Northwind database context class Defining EF Core models Using EF Core conventions to define the model Using EF Core annotation attributes to define the model Using the EF Core Fluent API to define the model Understanding data seeding with the Fluent API Building EF Core models for the Northwind tables Defining the Category and Product entity classes Adding tables to the Northwind database context class Setting up the dotnet-ef tool Scaffolding models using an existing database Customizing the reverse engineering templates Configuring preconvention models Querying EF Core models Filtering included entities Filtering and sorting products Getting the generated SQL Logging EF Core Filtering logs by provider-specific values Logging with query tags Pattern matching with Like Generating a random number in queries Defining global filters Loading patterns with EF Core Eager loading entities using the Include extension method Enabling lazy loading Explicit loading entities using the Load method Modifying data with EF Core Inserting entities Updating entities Deleting entities More efficient updates and deletes Pooling database contexts Working with transactions Controlling transactions using isolation levels Defining an explicit transaction Defining Code First EF Core models Practicing and exploring Exercise 10.1 – Test your knowledge Exercise 10.2 – Practice exporting data using different serialization formats Exercise 10.3 – Explore topics Exercise 10.4 – Explore NoSQL databases Summary Chapter 11: Querying and Manipulating Data Using LINQ Why LINQ? Comparing imperative and declarative language features Writing LINQ expressions What makes LINQ? Building LINQ expressions with the Enumerable class Understanding deferred execution 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 Sorting by the item itself Declaring a query using var or a specified type Filtering by type Working with sets and bags using LINQ Using LINQ with EF Core Building an EF Core model Using Visual Studio 2022 with SQLite databases Filtering and sorting sequences Projecting sequences into new types Joining and grouping sequences Joining sequences Group-joining sequences Aggregating sequences Be careful with Count! Paging with LINQ Sweetening LINQ syntax with syntactic sugar Using multiple threads with parallel LINQ Creating your own LINQ extension methods Trying the chainable extension method Trying the mode and median methods Working with LINQ to XML Generating XML using LINQ to XML Reading XML using LINQ to XML Practicing and exploring Exercise 11.1 – Test your knowledge Exercise 11.2 – Practice querying with LINQ Exercise 11.3 – Explore topics Summary Chapter 12: Introducing Web Development Using ASP.NET Core Understanding ASP.NET Core Classic ASP.NET versus modern ASP.NET Core Building websites using ASP.NET Core Building websites using a content management system Building web applications using SPA frameworks Building web and other services New features in 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 ASP.NET Core 3.1 Blazor WebAssembly 3.2 ASP.NET Core 5.0 ASP.NET Core 6.0 ASP.NET Core 7.0 Structuring projects Structuring projects in a solution or workspace Building an entity model for use in the rest of the book Creating a class library for entity models using SQLite Improving the class-to-table mapping Creating a class library for a Northwind database context Creating a class library for entity models using SQL Server Testing the class libraries Understanding web development Understanding Hypertext Transfer Protocol Understanding the components of a URL Assigning port numbers for projects in this book Using Google Chrome to make HTTP requests Understanding client-side web development technologies Practicing and exploring Exercise 12.1 – Test your knowledge Exercise 12.2 – Know your webbreviations Exercise 12.3 – Explore topics Summary Chapter 13: Building Websites Using ASP.NET Core Razor Pages Exploring ASP.NET Core Creating an empty ASP.NET Core project Testing and securing the website Enabling stronger security and redirecting to a secure connection Controlling the hosting environment Enabling a website to serve static content Creating a folder for static files and a web page Enabling static and default files Exploring ASP.NET Core Razor Pages Enabling Razor Pages Adding code to a Razor Page Using shared layouts with Razor Pages Using code-behind files with Razor Pages Using Entity Framework Core with ASP.NET Core Configuring Entity Framework Core as a service Manipulating data using Razor Pages Enabling a model to insert entities Defining a form to insert a new supplier Injecting a dependency service into a Razor Page Using Razor class libraries Disabling compact folders for Visual Studio Code Creating a Razor class library Implementing a partial view to show a single employee Using and testing a Razor class library Configuring services and the HTTP request pipeline Understanding endpoint routing Configuring endpoint routing Reviewing the endpoint routing configuration in our project Setting up the HTTP pipeline Summarizing key middleware extension methods Visualizing the HTTP pipeline Implementing an anonymous inline delegate as middleware Enabling request decompression support Enabling HTTP/3 support Practicing and exploring Exercise 13.1 – Test your knowledge Exercise 13.2 – Practice building a data-driven web page Exercise 13.3 – Practice building web pages for console apps Exercise 13.4 – Explore topics Summary Chapter 14: Building Websites Using the Model-View-Controller Pattern Setting up an ASP.NET Core MVC website Creating an ASP.NET Core MVC website Creating the authentication database for SQL Server LocalDB Exploring the default ASP.NET Core MVC website Starting the MVC website project Exploring visitor registration Reviewing an MVC website project structure Reviewing the ASP.NET Core Identity database Exploring an ASP.NET Core MVC website ASP.NET Core MVC initialization The default MVC route Controllers and actions The ControllerBase class The Controller class The responsibilities of a controller The view search path convention Logging using the dependency service Entity and view models Views Understanding how cache busting with Tag Helpers works Customizing an ASP.NET Core MVC website Defining a custom style Setting up the category images Razor syntax and expressions Defining a typed view Passing parameters using a route value Model binders in more detail Disambiguating action methods Passing a route parameter Passing a form parameter Validating the model Defining views with HTML Helper methods Defining views with Tag Helpers Cross-functional filters Using a filter to secure an action method Enabling role management and creating a role programmatically Using a filter to define a custom route Using a filter to cache a response Using output caching Output caching endpoints Output caching MVC views Varying cached data by query string Querying a database and using display templates Improving scalability using asynchronous tasks Making controller action methods asynchronous Practicing and exploring Exercise 14.1 – Test your knowledge Exercise 14.2 – Practice implementing MVC by implementing a category detail page Exercise 14.3 – Practice improving scalability by understanding and implementing async action methods Exercise 14.4 – Practice unit testing MVC controllers Exercise 14.5 – Explore topics Summary Chapter 15: Building and Consuming Web Services Building web services using the ASP.NET Core Web API Understanding web service acronyms Understanding HTTP requests and responses for Web APIs 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 Understanding action method return types Configuring the customer repository and Web API controller Specifying problem details Controlling XML serialization Documenting and testing web services Testing GET requests using a browser Testing HTTP requests with the REST Client extension Making GET requests using REST Client Making other requests using REST Client Understanding Swagger Testing requests with Swagger UI Enabling HTTP logging Support for logging additional request headers in W3CLogger Consuming web services using HTTP clients Understanding HttpClient Configuring HTTP clients using HttpClientFactory Getting customers as JSON in the controller Starting multiple projects If you are using Visual Studio 2022 If you are using Visual Studio Code Starting the web service and MVC client projects Implementing advanced features for web services Building web services using Minimal APIs Testing the minimal weather service Adding weather forecasts to the Northwind website home page Practicing and exploring Exercise 15.1 – Test your knowledge Exercise 15.2 – Practice creating and deleting customers with HttpClient Exercise 15.3 – Explore topics Summary Chapter 16: Building User Interfaces Using Blazor Understanding Blazor JavaScript and friends Silverlight – C# and .NET using a plugin WebAssembly – a target for Blazor Blazor hosting models Blazor components What is the difference between Blazor and Razor? Comparing Blazor project templates Reviewing the Blazor Server project template CSS and JavaScript isolation Blazor routing to page components How to define a routable page component How to navigate Blazor routes How to pass route parameters Understanding base component classes How to use the navigation link component with routes Running the Blazor Server project template Reviewing the Blazor WebAssembly project template Deployment choices for Blazor WebAssembly apps Differences between Blazor Server and Blazor WebAssembly projects Similarities between Blazor Server and Blazor WebAssembly projects Building components using Blazor Server Defining and testing a simple Blazor Server component Making the component a routable page component Getting entities into a component Abstracting a service for a Blazor component Defining forms using the EditForm component Building a shared customer detail component Building customer create, edit, and delete components Testing the customer components Building components using Blazor WebAssembly Configuring the server for Blazor WebAssembly Configuring the client for Blazor WebAssembly Testing the Blazor WebAssembly components and service Improving Blazor WebAssembly apps Practicing and exploring Exercise 16.1 – Test your knowledge Exercise 16.2 – Practice by creating a times table component Exercise 16.3 – Practice by creating a country navigation item Exercise 16.4 – Explore topics Summary Chapter 17: Epilogue The next steps on your C# and .NET learning journey Polishing your skills with design guidelines A companion book to continue your learning journey Other books to take your learning further The eighth edition coming November 2023 Good luck! 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