Book Image

C# 12 and .NET 8 – Modern Cross-Platform Development Fundamentals - Eighth Edition

By : Mark J. Price
4.6 (14)
Book Image

C# 12 and .NET 8 – Modern Cross-Platform Development Fundamentals - Eighth Edition

4.6 (14)
By: Mark J. Price

Overview of this book

This latest edition of the bestselling Packt series will give you a solid foundation to start building projects using modern C# and .NET with confidence. You'll learn about object-oriented programming; writing, testing, and debugging functions; and implementing interfaces. You'll take on .NET APIs for managing and querying data, working with the fi lesystem, and serialization. As you progress, you'll explore examples of cross-platform projects you can build and deploy, such as websites and services using ASP.NET Core. This latest edition integrates .NET 8 enhancements into its examples: type aliasing and primary constructors for concise and expressive code. You'll handle errors robustly through the new built-in guard clauses and explore a simplified implementation of caching in ASP.NET Core 8. If that's not enough, you'll also see how native ahead-of-time (AOT) compiler publish lets web services reduce memory use and run faster. You'll work with the seamless new HTTP editor in Visual Studio 2022 to enhance the testing and debugging process. You'll even get introduced to Blazor Full Stack with its new unified hosting model for unparalleled web development flexibility.
Table of Contents (18 chapters)
17
Index

Querying EF Core models

Now that we have a model that maps to the Northwind database and two of its tables, we can write some simple LINQ queries to fetch data. You will learn much more about writing LINQ queries in Chapter 11, Querying and Manipulating Data Using LINQ.For now, just write the code and view the results:

  1. In the WorkingWithEFCore project, add a new class file named Program.Helpers.cs.
  2. In Program.Helpers.cs, add a partial Program class with a SectionTitle method, as shown in the following code:
partial class Program
{
  private static void ConfigureConsole(string culture = "en-US",
    bool useComputerCulture = false)
  {
    // To enable Unicode characters like Euro symbol in the console.
    OutputEncoding = System.Text.Encoding.UTF8;
    if (!useComputerCulture)
    {
      CultureInfo.CurrentCulture = CultureInfo.GetCultureInfo(culture);
    }
    WriteLine($"CurrentCulture: {CultureInfo.CurrentCulture.DisplayName}");
  }
  private static void WriteLineInColor...