Book Image

C# 10 and .NET 6 – Modern Cross-Platform Development - Sixth Edition

By : Mark J. Price
5 (1)
Book Image

C# 10 and .NET 6 – Modern Cross-Platform Development - Sixth Edition

5 (1)
By: Mark J. Price

Overview of this book

Extensively revised to accommodate all the latest features that come with C# 10 and .NET 6, this latest edition of our comprehensive guide will get you coding in C# with confidence. You’ll learn object-oriented programming, writing, testing, and debugging functions, implementing interfaces, and inheriting classes. The book covers the .NET APIs for performing tasks like managing and querying data, monitoring and improving performance, and working with the filesystem, async streams, and serialization. You’ll build and deploy cross-platform apps, such as websites and services using ASP.NET Core. Instead of distracting you with unnecessary application code, the first twelve chapters will teach you about C# language constructs and many of the .NET libraries through simple console applications. In later chapters, having mastered the basics, you’ll then build practical applications and services using ASP.NET Core, the Model-View-Controller (MVC) pattern, and Blazor.
Table of Contents (20 chapters)
19
Index

Sweetening LINQ syntax with syntactic sugar

C# 3.0 introduced some new language keywords in 2008 to make it easier for programmers with experience with SQL to write LINQ queries. This syntactic sugar is sometimes called the LINQ query comprehension syntax.

Consider the following array of string values:

string[] names = new[] { "Michael", "Pam", "Jim", "Dwight", 
  "Angela", "Kevin", "Toby", "Creed" };

To filter and sort the names, you could use extension methods and lambda expressions, as shown in the following code:

var query = names
  .Where(name => name.Length > 4)
  .OrderBy(name => name.Length)
  .ThenBy(name => name);

Or you could achieve the same results by using query comprehension syntax, as shown in the following code:

var query = from name in names
  where name.Length > 4
  orderby name.Length, name 
  select name;

The compiler changes the query...