Book Image

C# 8.0 and .NET Core 3.0 – Modern Cross-Platform Development - Fourth Edition

By : Mark J. Price
Book Image

C# 8.0 and .NET Core 3.0 – Modern Cross-Platform Development - Fourth Edition

By: Mark J. Price

Overview of this book

In C# 8.0 and .NET Core 3.0 – Modern Cross-Platform Development, Fourth Edition, expert teacher Mark J. Price gives you everything you need to start programming C# applications. This latest edition uses the popular Visual Studio Code editor to work across all major operating systems. It is fully updated and expanded with new chapters on Content Management Systems (CMS) and machine learning with ML.NET. The book covers all the topics you need. Part 1 teaches the fundamentals of C#, including object-oriented programming, and new C# 8.0 features such as nullable reference types, simplified switch pattern matching, and default interface methods. Part 2 covers the .NET Standard APIs, such as managing and querying data, monitoring and improving performance, working with the filesystem, async streams, serialization, and encryption. Part 3 provides examples of cross-platform applications you can build and deploy, such as web apps using ASP.NET Core or mobile apps using Xamarin.Forms. The book introduces three technologies for building Windows desktop applications including Windows Forms, Windows Presentation Foundation (WPF), and Universal Windows Platform (UWP) apps, as well as web applications, web services, and mobile apps.
Table of Contents (21 chapters)

Creating a modern Windows app

We will start by creating a simple UWP app, with some common controls and modern features of Fluent Design like acrylic material.

Enabling developer mode

To be able to create apps for UWP, you must enable developer mode in Windows 10.

  1. Navigate to Start | Settings | Update & Security | For developers, and then click on Developer mode.
  1. Accept the warning about how it "could expose your device and personal data to security risk or harm your device," and then close the Settings app.

Creating a UWP project

Now you will add a new UWP app project to your solution.

  1. In Visual Studio 2019, open the WindowsDesktopApps solution.
  2. Navigate to File | Add | New Project....
  3. In the Add a new project dialog, enter uwp in search box, select the Blank App (Universal Windows) template for C#, and then click Next.
  4. For the Project name, enter FluentUwpApp and then click on Create.
  5. In the New Universal Windows...