.NET Core Ecosystem

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

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

Resources

.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

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

Right-click project name
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

Right-click project name
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

Enumerable.Aggregate Method

巴特西