Which interface you have to implement to get the reference of ObjectContext from DbContext?
IObjectContextAdapter interface
If you need to get ObjectContext you can cast your DbContext instance to IObjectContextAdapter interface (it is implemented explicitly) and wrapped ObjectContext instance will be available: ObjectContext context = ((IObjectContextAdapter)db).
What is the difference between DbContext and DbSet?
Intuitively, a DbContext corresponds to your database (or a collection of tables and views in your database) whereas a DbSet corresponds to a table or view in your database. So it makes perfect sense that you will get a combination of both!
What is difference between Entity Framework and LINQ?
Entity Framework is an object-relational mapping (ORM) framework for connecting C# code to external databases, usually SQL Server. LINQ is a query language embedded into C# and a set of extension methods in order to make it useful.
What is IDbSet?
An IDbSet represents the collection of all entities in the context, or that can be queried from the database, of a given type. DbSet is a concrete implementation of IDbSet.
Which is better LINQ or Entity Framework?
If your database is straightforward and simple, LINQ to SQL will do. If you need logical/abstracted entities on top of your tables, then go for Entity Framework. Entity Framework allows for a layer of abstraction of top of the database.
What is the difference between dbcontext and ObjectContext?
DbContext is a lightweight version of the ObjectContext class, which is laid almost right on top of ObjectContext (there is even a way to get to the ObjectContext from just the DbContext). It’s also a lot easier to use, IMO, and makes CRUD operations a sinch.
What is dbcontext in Entity Framework?
Additionally Dbcontext can be represented as a combination of the Unit of Work and Repository patterns. Conceptually DbContext is the same as ObjectContext. ObjectContext is a class that manages all the database operations, like database connection, and manages various entities of the Entity Model.
What is ObjectContext in Salesforce Entity Framework?
ObjectContext is a class that manages all the database operations, like database connection, and manages various entities of the Entity Model. We can say that ObjectContext is the primary class for accessing or working together with entities that are defined in the conceptual model. ObjectContext is responsible for:
Is dbcontext thread safe?
DBContext can be used by Entity Framework 4.1 and above. The ObjectContext class is not thread-safe. Any public static (C#) or Shared (Visual Basic) members of DbContext are thread-safe. Any instance members are not guaranteed to be thread safe.