.NET Core Ecosystem

.NET

.NET Blog

Application Models

• Web
• Mobile
• Desktop
• Microservices
• Gaming
• Machine Learning
• Cloud
• Internet of Things

Language	Version
C#
Visual Basic
F#	4.7

Platform	Version	Feature
.NET Core	3.0	(runs anywhere!) Windows, Linux, and macOS
.NET Framework	4.8	websites, services, and apps on Windows
Xamarin/Mono		a .NET for mobile
.NET Standard		The one platform, the shared set of libraries for the above

Library

• Nuget

Tools

• Visual Studio Marketplace

Learn More

• .NET Docs
• .NET Tutoria - Hello World in 10 minutes

Training	Progress
.NET Core 101 (Youtube)	3/8

Resources

• Announcing .NET Core 3.0 Preview 5
• Introducing .NET 5
• .NET Core is the Future of .NET

• .NET Core Guide

• Mono Project

• CoreFX

• .NET Github

• AspNetCore

• .NET Core CLI

• Blazor

• .NET Standard

• .NET Standard Doc

• Web Framework Benchmarks

• .NET Download

• TechNet: Microsoft Documentation For all IT professionals, developers, and end users

• MSDN: Microsoft Developer Network Any Developer, Any App, Any Platform

• Visual Studio Subscriptions

• Microsoft Docs

• Microsoft API and reference catalog

• Visual Studio

• Visual Studio Code

• MSDN Magazine

• Microsoft Azure

• Microsoft Community - Courses

• Channel 9

• This Week on Channel 9

• Azure Friday

• TechNet Radio

• Visual Studio ALM Rangers

• Coding4Fun

• Windows Azure Virtual Machines & Networking

  • Build xxxx
  • Microsoft Ignite xxxx
  • Azure Con xxxx

• Microsoft Virtual Academy

• Free Ebooks from Microsoft Press

• Microsoft Press Store

• IoT School

• AI School

• AI Lab

• PowerBI Guided Learning

• Partner Network resources

• Marketing / Branding

• Digital Transformation

• Marketing / Learning Resources

• Microsoft Learning

• Training

• Education / Resources

• Microsoft Application Architecture Guide, 2nd Edition

• Microsoft Sales Specialist (Online Trainings)

• Microsoft Docs

• Microsoft Learn

.NET - 3rd Party Resources

• Developer University - DevU

.NET Unit Testing Frameworks

• MsTest
• xUnit
• NUnit

MsTest, NUnit, xUnit are test framework, MsTest is what we using right now, but seems xUnit is more clear and lean.

.NET Mock/Fake Frameworks

• Mock Frameworks & Microsoft Fakes:  https://saucelabs.com/blog/mock-frameworks-vs-microsoft-fakes
• Moq:
  • Official: https://github.com/moq/moq
  • https://medium.com/webcom-engineering-and-product/a-cleaner-way-to-create-mocks-in-net-6e039c3d1db0
• NSubstitute
  • Official: https://nsubstitute.github.io/
  • http://ilkinulas.github.io/programming/unity/2016/02/25/mocking-with-nsubstitute.html
    
    MS Mock framework, MS Fakes, Moq, NSubstitute are mocking and faking frameworks that used for UT, seems NSubstitute is more clean for UT coding.

Code Refactoring

Source Making

• Design patterns
  • Creational patterns
  • Structural patterns
  • Behavioral patterns
• AntiPatterns
  • Software Development AntiPatterns
  • Software Architecture AntiPatterns
  • Project Management AntiPatterns
• Refactoring
  • Code Smells
  • Refactoring techniques
• UML
  • Introduction
  • Introduction to the Case Study
  • Modeling Business Systems
  • Modeling IT Systems
  • Modeling for System Integration

Refactoring.Guru

• Refactoring
• Design Patterns

What's .NET Framework

.NET Framework = Java Runtime (Execution Runtime))

C# = Java (Programming Language)

Check Project Source Codes

1. Get/download source codes from code repository (from VSTS)
2. Restore Nuget Packages
   1. Right-click solution name
   2. Click 'Restore Nuget Packages'
3. Rebuild
   1. Right-click solution name
   2. Click 'Clean Solution'
   3. Right-click solution name
   4. Click 'Rebuild Solution'

.NET Framework Versioning

How to: Determine which .NET Framework version project developed on

1. Right-click project name
2. Click 'Properties' (or Press Alt+Enter)
   
   

How to: Determine which .NET Framework versions are installed on the Machine

C# Versions

C# Version History

• C# 6.0 - .NET 4.6, VS 2015
• C# 7.0 - .NET 4.7, VS 2017
• C# 8.0 - in preview

Application Types

• Library
  • Class Library
• Console
  • Console App
• Desktop
  • Windows Forms App
  • WPF App (Windows Presentation Foundation) - XAML
• Web
  • ASP.NET Web Site - Script block in web page source
  • ASP.NET Web Forms - .aspx + .cs
  • ASP.NET Web App - .cshtml (Razor) + .cs
    • ASP.NET MVC - for dynamic web pages
    • ASP.NET Web API - for REST API

Console App

Set Console App Project as StartUp Project

1. Right-click project name
2. Click 'Set as StartUp Project'

Program Entry

• File: Program.cs
• Method:

static void Main(string[] args)

* args: Console command parameters, e.g. myApp param1, param2, ..., paramN

Exception Handling

try{
    // logic
}
catch(Exception ex){
    // execute when specific exception/error happends
}

Conditional Statements

• IF, Switch, For, While
  
  https://www.guru99.com/c-sharp-conditional-statements.html

Log Level

• Debug
• Info
• Warn
• Error
• Fatal

API Error Handling

• HTTP 200 + Succeed Flag = Logical Correct
• HTTP 200 + Failed Flag = Logical Incorrect
• HTTP 404/500 (Web Server/Software Error, Authentication Error) = Application Error
• HTTP 505 (Network Not Found) = Network Error

HTTP Method

• HTTP GET (URL only)
• POST (with HTTP body)
• HEAD
• OPTION (query description doc)
• PUT
• DELETE

HTTP Request/Response Model

• Request
  • HTTP URL
  • HTTP Headers (including cookies)
  • HTTP Body
• Response
  • HTTP Headers (including return code)
  • HTTP Body

JSON (JavaScript Object Notation)

• Serialize: Object(s) -> JSON text/string
• Deserialize: JSON text/string -> Object(s)

Generic Type

public static FunctionName<T>

Variable Types

• Reference Type (Class, ref)
  • Pass itself into function, and will be returned back with value changes in function
• Value Type (Structure, basic types e.g. numbers)
  • Pass its shadow copy and original variable will not be impact

C# Lambda Expressions

C# Lambda Expressions

Enumerable.Aggregate Method