Entity Framework 4.1. Updating many-to-many relationships. Is this the right way?

You have three database queries: 1) context. MarketCategories.Load() (hopefully the category table is small, otherwise this would be a no-go as it loads the whole table into memory), 2) ...Find and 3) dbProd.Categories.Clear() : Here must be a lazy loading involved, otherwise this would crash because dbProd. Categories would be null .

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