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

Understanding selection statements

Every application needs to be able to select from choices and branch along different code paths. The two selection statements in C# are if and switch. You can use if for all your code, but switch can simplify your code in some common scenarios, such as when there is a single variable that can have multiple values that each require different processing.

Branching with the if statement

The if statement determines which branch to follow by evaluating a Boolean expression. If the expression is true, then the block executes. The else block is optional, and it executes if the if expression is false. The if statement can be nested.

The if statement can be combined with other if statements as else if branches, as shown in the following code:

if (expression1)
{
  // Executes if expression1 is true.
}
else if (expression2)
{
  // Executes if expression1 is false and expression2 is true.
}
else if (expression3)
{
  // Executes if expression1...