I'm sharing same model on server between my Silverlight project and using it on server for WCF services. In case of services - all calls are in and out and have very small scope..

 

Here is example picture of what I see in Profiler:

 

 

Basically, I persist my entities and EF automatically refereshes it's state - loading keys, etc.

 

But I KNOW that this is my last call and service will exit after that. How can I control if it's even possible so EF doesn't refresh itself and doesn't issue those additional selects against database? Trying to optimize as much as I can

 

 

You could use EntityTypesExcludedFromPostSaveRefetch:

 

SaveOptions options = new SaveOptions();

options.EntityTypesExcludedFromPostSaveRefetch = new Type[] {mySavedEntity.GetType()};

mgr.SaveChangesAsync(options, saveOp => {

  if (saveOp.CompletedSuccessfully) {

    // ...

  }

});

 

While the PKs and FKs will be resolved, the entities' EntityState will not be updated (although it shoudn't be an issue since you are exitting).

 

Regards,

   Silvio.

 

options.EntityTypesExcludedFromPostSaveRefetch = new Type[] {mySavedEntity.GetType()};

 

Fixed.