EF4 Self Tracking Entities?

As you know the ObjectStateManager manages the objects statuses, especially on n-tied applications, to update specific objects, use below methods.

If you don't want all data to be passed you must work with smaller set. So if you by default retrieve Customer + all its order + all order details then it is your working set. If you want to work only with single Order create operation to get only that one and its details.

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