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* Microsoft MVP - Windows Development 2014 ~ 2020 http://youtube.com/FutureOfDotNet kaki104

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* Groupings
- group
  - group n by n % 5 into g

* Set operation
- Distinct 중복제거
  - var uniqueFactors = factorsOf300.Distinct();
- Union 중복제거 결합
  - var uniqueNumbers = numbersA.Union(numbersB);
- Intersect 교집합
  - var commonNumbers = numbersA.Intersect(numbersB);
- Except 제외
  - IEnumerable aOnlyNumbers = numbersA.Except(numbersB);     

 

https://youtu.be/WR8p4bKuqyI

 

- 메뉴 모델과 데이터

CMenu.cs
0.00MB
LINQ part4.pdf
0.27MB

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Partitions
- Take
    numbers.Take(3)
- Skip
    numbers.Skip(4)
- TakeWhile
    numbers.TakeWhile(n => n < 6)
- SkipWhile
    numbers.SkipWhile(n => n % 3 != 0)


Orderings
- OrderBy
    orderby word
- Custom Comparer
    words.OrderBy(a => a, new CaseInsensitiveComparer())
- OrderBy ~ Descending
    orderby d descending
- ThenBy
    orderby degit.Length, digit
    words.OrderBy(a => a.Length).ThenBy(a => a, new CaseInsensitiveComparer())
- Reverse
    .Reverse()

https://youtu.be/K8V7_UDWfQs

LINQ part3.pdf
0.18MB

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Projections 
- select
- anonymous type
- tuple type
- where & select
- Multiple Sequences
- Child Sequence, Select Many
- Multiple where
- Indexed Select Many
- Practice
https://youtu.be/5Rq-ZvUvfOc

LINQ part2.pdf
0.19MB

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What is LINQ
- Language Integrated Query
- 다른 소스 및 Type에서 데이터를 검색하고 활용하기 위한 표현식
- 컬렉션, Ado.NET, DataSet, XML Docs, 웹 서비스 및 MS SQL Server 및 기타 데이터베이스등 다양한 데이터 소스에서 검색 및 활용이 가능
- 101 LINQ samples

LINQ Basic


LINQ Basic Keywords
- from : 쿼리 표현식은 from으로 시작해야함
- in : 4가지 경우에 사용되며 일반적으로 from과 함께 사용
- let : 쿼리식에서 하위절의 결과를 저장하여 후속절에서 사용하는 것이 유용한 경우에 let 키워드를 사용하여 새로운 로컬 변수를 만들어서 다양하게 활용이 가능
- into : group, join or select 절의 결과를 저장하는 임시 식별자를 만들수 있음
- on : join 절에서 결합 조건을 지정하는데 사용
- equals : join 절에서 두 시쿼스의 요소를 비교하는데 사용

Restrictions 제한
- Where


https://youtu.be/ci2U1cG6TvI

 

LINQ part1.pdf
0.22MB

Posted by MVP kaki104

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What is UNO Platform?

Visual Studio / 2020. 1. 29. 00:02

UNO Platform에 대해서 알아보도록 하겠습니다.

원본 동영상 https://m.youtube.com/watch?v=NHFbPItDaDc

 

1. 크로스 플랫폼 개발용

 

2. Xamarin.Forms와 차이점

 

3. Uno Platform

- Port of Universal Windows Platform(UWP) API and XAML to iOS/Android/WASM/macOS

- Written in C#(with bits of Java and JavaScript)

- 1:1 compatibility with UWP XAML, existing skills consistent UI

- Free and open source - https://platform.uno/

 

4. Uno Platform UI comparison

 

5. Supported platforms

 

6. Uno UI

 

7. Uno - UI? Not only!

 

8. Uno Platform Prerequisites

- Visual Studio 2019 for Windows

. Universal Windows Platform

. Mobile development with .NET

. ASP.NET and Web

- macOS for iOS build host

- Uno Platform Solution Templates Visual Studio Extension

 

9. DEMO

 

10. Call to action

 

https://youtu.be/li47OqE0tNI

 

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