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In what scenarios would I need to use the CREATEREF, DEREF and REF keywords?

I'm not asking what are ref, deref, and createref in entity framework. but the question is what are the prupose and benefit of ref, deref, and createref in entity framework?

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user384080
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  • This is exactly what I would like to know.... I can't find any scenarios that show where this would be useful/required... – J M Mar 04 '12 at 16:00

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