C# 14 and .NET 10 – Modern Cross-Platform Development Fundamentals: Build modern websites and services with ASP.NET Core, Blazor, and EF Core using Visual Studio 2026

An easy-to-follow guide for beginners and intermediate programmers to master modern C# and .NET development through hands-on examples using Visual Studio 2026 and VS Code.

Free with your book: DRM-free PDF version + access to Packt's next-gen Reader

Key Features Explore the newest additions to the C# language, the .NET class libraries, and data modeling with Entity Framework Core Build professional modern websites and services with ASP.NET Core, Blazor, and Minimal API services Enhance your skills with step-by-step code examples and good practice tips Book Description C# and .NET continue to power modern cross-platform and enterprise development. With the release of C# 14 and .NET 10, developers gain access to a more capable, efficient, and future-ready platform for building websites, services, and applications across Windows, Linux, and macOS.

This fully updated tenth edition takes a practical, hands-on approach. You’ll start with core C# and object-oriented programming concepts, then progress through building, testing, and debugging applications while working with .NET libraries, filesystems, serialization, and LINQ. The book covers key C# 14 enhancements—such as field modifiers, partial events, and instance constructors, explained through real-world examples.

You’ll also build modern web solutions using ASP.NET Core 10, Blazor, and Minimal APIs, including support for native AOT compilation, making this book well suited for cloud-native, microservice, and container-based development.

By the end of the book, you’ll be confident in building maintainable, high-performance websites and services aligned with modern .NET development practices.

What you will learn Discover the new features in .NET 10, including the NumericOrdering option and OrderedDictionary enhancements Leverage the latest ASP.NET Core 10 features, such as OpenAPI 3.1 document generation, YAML format support, and populating XML doc comments Use native AOT publishing for faster startup and reduced memory footprint Build rich web user interface experiences with Blazor Integrate databases into your applications using EF Core 10 entity models Query and manipulate data using LINQ Develop powerful web services with Minimal APIs Who this book is for This book is for beginner-to-intermediate C# and .NET developers who want to build modern, cross-platform websites and services. Prior experience with C# or .NET is helpful but not required; a basic understanding of programming concepts is sufficient.

Table of Contents Hello, C#! Welcome, .NET! Speaking C# Controlling Flow, Converting Types, and Handling Exceptions Writing, Debugging, and Testing Functions Building Your Own Types with Object-Oriented Programming Implementing Interfaces and Inheriting Classes Packaging and Distributing .NET Types Working with Common .NET Types Working with Files, Streams, and Serialization Working with Data Using Entity Framework Core Querying and Manipulating Data Using LINQ Introducing Modern Web Development Using .NET Building Websites Using ASP.NET Core Building Interactive Web Components Using Blazor Building and Consuming Web Services