Keeping long-lived context instance it is something like having in-memory
database. Yes you have all entities but it cost you memory. Still some apps ok
with this, if user session works only with small subset of database entities.
Sent from my Windows 10 phone
From: Jiří Činčura
Sent: Saturday, March 26, 2016 12:52 PM
To: For users and developers of the Firebird .NET providers
Subject: Re: [Firebird-net-provider] Entity Framework: Best practices to workin
a multiuser environment
> Indeed. It's EF poor design, that they try to rework in EF core.
> Still there are plenty of workarounds for this. For example attaching
> entities only by ids.
Attaching by ID? It's still attaching...
> DbContext is supposed to be used in request-response scenario (web
> sites, for example), where context object is short-living object.
Quite opposite. Short-living context is recommended in request-response
scenarios. If you can keep the instance - like WPF, WinForms, etc. - the
benefit of having the context to track what you're doing is great help.
The context class itself was not designed to be used in any scenario in
particular. It should work and works in all range of options .NET
ecosystem offers. In fact, even just the disconnected scenario has at
least like 3 options to tackle it.
--
Mgr. Jiří Činčura
Independent IT Specialist
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