Where is DbContext in Entity Framework?
Entity. DbContext class, as shown below. The class that derives DbContext is called context class in entity framework. DbContext is an important class in Entity Framework API….DbContext Properties.
| Method | Usage |
|---|---|
| ChangeTracker | Provides access to information and operations for entity instances that this context is tracking. |
What is DB set and entity set uses?
The DbSet class represents an entity set that can be used for create, read, update, and delete operations. The context class (derived from DbContext ) must include the DbSet type properties for the entities which map to database tables and views. Adds the given entity to the context with the Added state.
Can we have more than one DbContext?
“More than one DbContext was found. Specify which one to use. Use the ‘-Context’ parameter for PowerShell commands and the ‘–context’ parameter for dotnet commands.”
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!
Does DbContext inherit ObjectContext?
DbContext mainly contains a set of APIs that are very easy to use. The API is exposed by ObjectContext. These APIs also allow us to use a Code First approach that ObjectContext does not allow….ObjectContext VS DBContext.
| ObjectContext | DbContext |
|---|---|
| ObjectContext supports self-tracking of Entities | DbContext does not support self-tracking of Entities. |
What is difference between DbContext and DbSet?
Can we have more than one connection string in C#?
For Example, one web application is used by multiple clients, so one database for each client. Hence there will be multiple connections strings in the web.
How do I change state entity?
Changing the state of a tracked entity Note that calling Add or Attach for an entity that is already tracked can also be used to change the entity state. For example, calling Attach for an entity that is currently in the Added state will change its state to Unchanged.