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V minulém díle jsme nainstalovali SQL Server, který je nutný pro běh Configuration Manageru. Dnes nás čeká instalace WSUS, což je produkt, j…
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I tento měsíc vám přinášíme výběr nejzajímavějších videí, kurzů a záznamů konferencí. Veškeré kurzy pak naleznete na portálu MVA a výuková v…
10.05 Azure Site Recovery – VMWARE (…
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20.04 Odkazy z prohlížeče – 20.4.201…
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11.04 Linq a pracovní pohovor
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27.03 Bezpečnost – věc veřejná
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Na blogu jsem uveřejnil několik příkladů z pohovorů s uchazeči o místo programátora. Dovolím si tedy uveřejnit jeden z dalších možných příkl…
15.03 IDisposable v příkladech
viga
Rozhraní IDisposable slouží k uvolnění “unmanaged” zdrojů. Nejčastěji to jsou různé objekty z Win32API (otevřené soubory, síťové spojení, GD…

.NET Core 2.1, ASP.NET Core 2.1 and Entity Framework Core 2.1 su von

liero - 1.6.2018 10:02 - 3029 views

V asp.net core 2.0 som nakodil dve realne aplikacie a ukazalo sa to ako celkom zivotaschopne, no narazil som tu na niekolko nemilych prekvapeni. 

Pred dvoma dnami vysli nove verzie 2.1 a hoci to vyzera ako minor improvement, je to velky krok k tomu, aby ste mohli prejst z .NET Framworku na .NET Core.

V 2.0 mi najvacsi problem robil pomerne slaby Entity Framework. Nefungoval dobre ani Code First pristup, lebo mal problem prelozit mnohe Linq Queries (Group By+Aggregatna funkcia) a sposoboval casto N+1 queries problem. Nefungoval moc dobre ani DB first pristup, napriklad kvoli slabej podpore Views a System.Transactions. Obe tieto problemy vyriesili vo verzii 2.1.
Na druhej strane, EF ako repository pattern pre domenovy model fungoval prekvapivo dobre (code first).

EF Core 2.1 bezi aj na .NET Core 2.0 a .NET Framework 4.6.1 a neskorsich.

Chybal aj SignalR ale ten sa dal pouzit aspon cez preview package. Konecne ho oficialne vydali.

Trochu problematicke bolo aj pouzivanie Razor views mimo kontextu controllera (napriklad na generovanie emailov). Toto vraj tiez vylepsili. Mozno je to netypicky scenar, ale mne to pride celkom uzitocne.

Pozitivny prinos moze mat slubovane vyrazne zrychlenie buildovanie .net core projektov.

Idem sa pustit do upgradovania, uvidim, ci ma zase prefacka VSTS hosted build agent ako minule.

 

Prednasky z BUILD 2018:

What's new in Web Development with ASP.NET Core 2.1

Entity Framework Core 2.1: Simple, Powerful Data Access for .NET

.NET Overview & Roadmap

Blogy

ASP.NET Core 2.1.0 now available

What's new in ASP.NET Core 2.1

What's new in .NET Core 2.1

New features in EF Core 2.1


Daniel Turan

MCPD Web Developer, Certified Avanade SCRUM Professional Developer;
WPF, Silverlight, Windows Phone, Windowse Store app developer,
TypeScript, JavaScript

Článkov: 1, Správičiek: 96, Príspevkov vo fóre: 1560, Príspevkov v blogu: 0, Bodov: 9780
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