WPF - EF5 - Detect changes on a single instance of an objectContext

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Hello there guys

I'm using entity framework 5,

is it possible, or is there a way of only detect changes in a single instance of an object rather than the all object context?

what i want to do is like:

Person person = new Person();

person. // make some changes here

person.DetectChanges();

rather than:

Person person = new Person();

person. // make some changes here

allObjectContext.DetectChanges();

I'm i making sense?

Plz let me know!

Thanks!

Posted 11-Oct-13 7:54am

skipt

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Dave Kreskowiak · Answer 1 · 2013-10-11T16:04:00

Solution 1

The first question is Why?? Since you're making a new Person object, nearly everything will be a change. The only things that won't will be the default values for your object property types, like 0 for an int.

Posted 11-Oct-13 16:04pm

Dave Kreskowiak

skipt · Answer 2 · 2013-10-12T00:19:00

Hello there and thanks for the reply.

What i want to do is when i set a property on an instance, if I use "DetectChanges()" it automatically populates the navigational property and vice-versa.

What is happening is that the detect changes detect that to ALL the objects loaded in the object context, and, in my case, the database is remote, so it takes a while.

Lets say, it take like 2-3 seconds detecting the changes of 3000 records.

I want to do that (load navigational properties) in a single record to improve time.

Thanks!