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by Jiří {x2} Činčura

SomeEntitySet.AddObject vs. AddToSomeEntitySet methods

12 Aug 2011 1 mins Entity Framework

Is it better to call ObjectContext.SomeEntitySet.AddObject() or ObjectContext.AddToSomeEntitySet()? Short answer is: It doesn’t matter.

Long answer. The AddToSomeEntitySet method calls base.AddObject("SomeEntitySet", someEntitySet);, you can see it from generated code. The other method calls base.Context.AddObject(this.FullyQualifiedEntitySetName, entity);. Hence it’s almost the same. Only difference is in FullyQualifiedEntitySetName property that is used. So it might be little bit slower, but I think it’s unmesurable difference. Also take into account other parts of your application, honestly, where you’re probably wasting more time. 😎

What’s your preferred call?

Profile Picture Jiří Činčura is .NET, C# and Firebird expert. He's focused on data and business layers, language constructs, parallelism, databases and performance. He's Microsoft Most Valuable Professional and frequent speaker. You can read his articles, guides and tips and tricks at