DbSet.Add(Object) Method (System.Data.Entity) | Microsoft Learn
https://learn.microsoft.com/en-us/dotnet/api/system.data.entity.dbset.add?view=entity-framework-6.2.0
Note that entities that are already in the context in some other state will have their state set to Added. Add is a no-op if the entity is already in the context in the … See more Namespace: System.Data.Entity
Namespace: System.Data.Entity
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