.NET documentation

Learn about .NET

Download

• Download .NET

Overview

• What is .NET?
• Tour of .NET
• Introduction to .NET Core
• .NET Core overview
• .NET Core SDK overview

Get Started

• Get started with .NET Core
• Get started with ASP.NET Core
• .NET on Q&A

Concept

• .NET Standard
• .NET Core
• Target frameworks
• Common Language Runtime (CLR)
• .NET Core support policy

What's new

• What's new in .NET 5
• What's new in .NET Core 3.1
• What's new in .NET Core 3.0

Install .NET Core

Overview

• Select which .NET Core version to use

How-To Guide

• Install .NET Core SDK
• Install .NET Core runtime
• Use a Linux package manager to install
• Check installed versions

Reference

• .NET Core SDK and runtime dependencies

Get started with .NET Core

video

• Tutorial: Hello World in 10 minutes

Tutorial

• Create a Hello World app in Visual Studio Code
• Create a Hello World app in Visual Studio
• Containerize a .NET Core app

Deploy

• App publishing

Migrate from .NET Framework

Overview

• Port from .NET Framework to .NET Core

Use .NET Core from the command line

Overview

• .NET Core CLI

Tutorial

• Get started using the CLI

Deploy

• Publish apps

Reference

• dotnet new
• dotnet publish

Unit test with .NET Core

Overview

• Unit testing in .NET Core and .NET Standard

Tutorial

• Test C# code using dotnet test and xUnit
• Unit test with NUnit
• Unit test with MSTest

Concept

• Best practices for writing unit tests

Serialize data

Concept

• Serialize and deserialize JSON

How-To Guide

• Serialize and deserialize JSON using C#
• Migrate from Newtonsoft.Json to System.Text.Json
• Write custom converters for JSON serialization

sample

• Examples of XML serialization

Format and convert dates, numbers, and strings

Concept

• Numeric format strings
• Date and time format strings
• Composite formatting
• Convert times between time zones
• Trim and remove characters from strings
• Regular expressions in .NET

How-To Guide

• Convert strings to DateTime
• Pad a number with leading zeros
• Display milliseconds in date and time values

Reference

• Regular expression language

Use events and exceptions

Concept

• Best practices for exceptions
• Handle and raise events

How-To Guide

• Use a try-catch block to catch exceptions
• Raise and consume events

File and stream I/O

Concept

• File and stream I/O
• File path formats on Windows

How-To Guide

• Write text to a file
• Read text from a file
• Compress and extract files
• Open and append to a log file

Manage memory use

Concept

• Garbage collection fundamentals
• Implement a Dispose method
• Implement a DisposeAsync method

Learn about parallel programming

Overview

• Parallel Programming in .NET

Concept

• Task Parallel Library (TPL)
• Task-based asynchronous programming
• Task cancellation

How-To Guide

• Write a simple parallel program using Parallel.ForEach
• Return a value from a task