EF DbContext and StructureMap scoping

Question

Ok, I give up...

What I want is to share the EF4's DbContext instance per request. I configured StructureMap like this:

For<MyContext>().Use(new MyContext("LocalhostConnString"));

But when I refresh my site, or even open it in another browser, I get the same exact instance of MyContext. Why is this shared across requests?

Am I missing something?

score 14 · Accepted Answer · answered Sep 11 '10 at 03:19

14

Yes... about 4 characters. Try:

For<MyContext>().Use(() => new MyContext("LocalhostConnString"));

If you give StructureMap an object instance, it will treat that instance as a singleton and return the same one every time. If instead you give it a lambda that creates an instance, it will run that lambda each time the type is requested.

answered Sep 11 '10 at 03:19

Joshua Flanagan

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So, "each time the type is requested", but not once per request? – Roman Royter Aug 18 '11 at 02:38
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@Roman Royter Exactly my question. How should I do it per request? – forhas Mar 19 '13 at 13:37
the default lifecycle is Transient and that means a nested container for MVC / Web API which effectively means per request - apparently – jenson-button-event Jan 09 '18 at 16:30

EF DbContext and StructureMap scoping

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