WhatsNewNet6

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 <div class="my-footer">Andrei Ignat , http://msprogrammer.serviciipeweb.ro/</div>
 
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# WhatsNewNet6   =>

( press > )

https://ignatandrei.github.io/Presentations/WhatsNewNet6prez.html

Code at 
https://ignatandrei.github.io/Presentations/WhatsNewNet6.zip
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# Agenda

0. About me
1. What's new VS2022?
2. What's new C# 10
3. What's new ASP.NET C# 10
4. What's new EFCore 6
5. Links 
7. Discussion  / Questions ?
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# About me

![:img ignat, 10%](ignat.jpg)
Andrei Ignat http://msprogrammer.serviciipeweb.ro/

www.ASP.NET forum moderator

YouTube 5 minutes .NET and tools : http://bit.ly/5MinTools

Book Making Open Source Component  : http://bit.ly/NetOpenSourceComponent

Book Copy Paste from StackOverflow : https://amzn.to/2PQ8EDc

Roslyn Source Code Generators with examples :

Amazon: https://amzn.to/3f6gll3

Free:  https://ignatandrei.github.io/RSCG_Examples/

Monthly meetings:  https://www.meetup.com/Bucharest-A-D-C-E-S-Meetup/

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# What's new VS2022?

64 Bit

Intellicode - AI powered like Github Copilot

Conditional Breakpoint + Force Run to Cursor

Not tried yet:

committing across many repos: https://devblogs.microsoft.com/visualstudio/multi-repo-support-in-visual-studio/

Razor editor: https://devblogs.microsoft.com/visualstudio/introducing-the-new-razor-editor-in-visual-studio-2022/

More details at : https://docs.microsoft.com/en-us/visualstudio/releases/2022/release-notes-preview

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# What's new C# 10

DotNet: https://devblogs.microsoft.com/dotnet/file-io-improvements-in-dotnet-6/

1. Demo :Minimal program , Implicit usings ,global usings, 
```csharp
WriteLine("Hello Worldx");
CsharpVsPython();
```
2. //Demo: file scoped namespaces

3. Demo: CallerArgumentExpression

4. Demo: Source generator for System.Text.Json (and logging)

5. DateOnly, TimeOnly : https://devblogs.microsoft.com/dotnet/date-time-and-time-zone-enhancements-in-net-6/

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# What's new ASP.NET C# 10 
https://docs.microsoft.com/en-us/aspnet/core/release-notes/aspnetcore-6.0?view=aspnetcore-6.0
1. Demo: Minimal API ; then  Razor , Blazor , IAsyncDisposable
2. HttpLoggingMiddleware 
3. Demo: AsyncEnumerable
```csharp
[HttpGet]
public async IAsyncEnumerable<int> GetValues(){
    for (int i = 0; i < 10; i++)
    {
        await Task.Delay(2000);
        yield return i;
    }
}
```
4. Linq API : //Demo: MaxBy , //Demo: Chunk : example with threads

6. Value Type Records ( equality not by reflection)

7. Interpolated string : https://docs.microsoft.com/en-us/dotnet/csharp/whats-new/tutorials/interpolated-string-handler
(see latest example)

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# What's new  EFCore 6
<small>
1. Minimal API + Speed
2. Compiled Models : https://devblogs.microsoft.com/dotnet/announcing-entity-framework-core-6-0-preview-5-compiled-models/
dotnet ef dbcontext optimize
```csharp
var iddepartment = runtimeEntityType.AddProperty(
"Iddepartment",
typeof(long),
propertyInfo: typeof(Department).GetProperty("Iddepartment", BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly),
fieldInfo: typeof(Department).GetField("<Iddepartment>k__BackingField", BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.DeclaredOnly),
valueGenerated: ValueGenerated.OnAdd,
afterSaveBehavior: PropertySaveBehavior.Throw);
```
3. Conventions - varchar(200) for all string columns https://devblogs.microsoft.com/dotnet/announcing-entity-framework-core-6-0-preview-6-configure-conventions/
```csharp
configurationBuilder.Properties<string>()
.AreUnicode(false).HaveMaxLength(1024);
```
4. Support Temporal Tables 
5. Migrations, Cosmos DB, SavePoints, and others :https://docs.microsoft.com/ro-ro/ef/core/what-is-new/ef-core-6.0/whatsnew

</small>

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# Links to get started 
https://docs.microsoft.com/en-us/dotnet/core/whats-new/dotnet-6

https://devblogs.microsoft.com/dotnet/file-io-improvements-in-dotnet-6/

https://devblogs.microsoft.com/dotnet/announcing-net-6/

https://devblogs.microsoft.com/dotnet/welcome-to-csharp-10/

https://devblogs.microsoft.com/dotnet/try-the-new-system-text-json-source-generator/

https://docs.microsoft.com/en-us/ef/core/what-is-new/ef-core-6.0/whatsnew

https://docs.microsoft.com/en-us/aspnet/core/release-notes/aspnetcore-6.0?view=aspnetcore-6.0

http://dontcodetired.com/blog/?tag=cs10newseries

https://devblogs.microsoft.com/dotnet/get-to-know-ef-core-6/

https://docs.microsoft.com/ro-ro/ef/core/what-is-new/ef-core-6.0/whatsnew

https://blog.ndepend.com/modern-c-hello-world/

https://devblogs.microsoft.com/visualstudio/visual-studio-2022/

https://devblogs.microsoft.com/visualstudio/multi-repo-support-in-visual-studio/

https://devblogs.microsoft.com/visualstudio/introducing-the-new-razor-editor-in-visual-studio-2022/

https://visualstudiomagazine.com/articles/2021/11/08/vs-2022-ga.aspx

https://kymphillpotts.com/dotnetconf-recap.html

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# Questions?

Andrei Ignat http://msprogrammer.serviciipeweb.ro/

www.ASP.NET forum moderator

YouTube 5 minutes .NET and tools : http://bit.ly/5MinTools

Book Making Open Source Component  : http://bit.ly/NetOpenSourceComponent

Book Copy Paste from StackOverflow : https://amzn.to/2PQ8EDc

Roslyn Source Code Generators with examples :

Amazon: https://amzn.to/3f6gll3

Free:  https://ignatandrei.github.io/RSCG_Examples/

Monthly meetings:  https://www.meetup.com/Bucharest-A-D-C-E-S-Meetup/