Describe the behavior of DbContext when DbSet.Attach() is used on an entity.
- Attaches the entity and marks it as modified in the DbContext.
- Attaches the entity to the DbContext in an unchanged state.
- Detaches the entity from the DbContext, allowing it to be re-attached with changes.
- Throws an exception if the entity is already being tracked by the DbContext.
When DbSet.Attach() is used on an entity in Entity Framework's DbContext, it attaches the entity to the context in an unchanged state. This means that the entity is considered to exist in the database in its current state, and any changes made to it will not be tracked by the context unless explicitly marked as modified. This is useful when working with entities that are not being modified but need to be included in queries or related operations.
Loading...
Related Quiz
- Which version of Entity Framework allows for a more modular approach when adding functionality via NuGet packages?
- Consider a complex query involving multiple entities and aggregate functions. How would LINQ to Entities be utilized?
- In a distributed system, how does Entity Framework handle database connections to ensure efficient resource usage?
- What is the default behavior of Entity Framework when loading related entities in a query?
- Describe a situation where the improper use of asynchronous programming in Entity Framework could lead to performance issues or resource bottlenecks.