It's one of the more problematic areas in a mix, since the higher harmonics of kicks and lower harmonics of synths, guitars, and much more all converge here, which leaves you with a mix that sounds bloated and tired. This issue often appears in the low mid range, between 150-350 Hz, which is what gives music its heft and power. If the kick and bass elements in your mix sound good on their own but struggle to make an impact in the context of the mix, this can be a sign you need to take away the lows present in other instruments. Shape the low end using a high pass filter-with care The OnModelCreating method allows us to configure the model using DbModelBuilder Fluent API in EF 6.3. It also includes functions for the stored procedures and views included in EDM. Return (( IObjectContextAdapter) this).ObjectContext.ExecuteFunction( "sp_UpdateStudent", studentIdParameter, standardIdParameter, studentNameParameter) Īs you can see in the above example, the context class ( SchoolDBEntities) includes the entity set of type DbSet for all the entities. New ObjectParameter( "StandardId", typeof( int)) Public virtual int sp_UpdateStudent(Nullable studentId, Nullable standardId, string studentName) Return (( IObjectContextAdapter) this).ObjectContext.ExecuteFunction>( "sp_InsertStudentInfo", standardIdParameter, studentNameParameter) New ObjectParameter( "StudentName", typeof( string)) New ObjectParameter( "StudentName", studentName) : Var studentNameParameter = studentName != null ? New ObjectParameter( "StandardId", standardId) : Var standardIdParameter = standardId.HasValue ? Public virtual ObjectResult> sp_InsertStudentInfo(Nullable standardId, string studentName) Return (( IObjectContextAdapter) this).ObjectContext.ExecuteFunction( "sp_DeleteStudent", studentIdParameter) Public virtual int sp_DeleteStudent( Nullable studentId) Return (( IObjectContextAdapter) this).ObjectContext.ExecuteFunction( "GetCoursesByStudentId", studentIdParameter) New ObjectParameter( "StudentId", typeof( int)) New ObjectParameter( "StudentId", studentId) : Var studentIdParameter = studentId.HasValue ? Public virtual ObjectResult GetCoursesByStudentId( Nullable studentId) Throw new UnintentionalCodeFirstException() Protected override void OnModelCreating( DbModelBuilder modelBuilder) Public partial class SchoolDBEntities : DbContext The following is an example of SchoolDBEntities class (context class that derives from DbContext) generated with EDM for the SchoolDB database in the previous section.
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Persisting Data: Performs the Insert, Update and Delete operations to the database, based on entity states.Change Tracking: Keeps track of changes that occurred on the entities after querying from the database.Querying: Converts LINQ-to-Entities queries to SQL query and sends them to the database.It is responsible for the following activities: It is a bridge between your domain or entity classes and the database.ĭbContext is the primary class that is responsible for interacting with the database. The class that derives DbContext is called context class in entity framework.ĭbContext is an important class in Entity Framework API.
As you have seen in the previous Create Entity Data Model section, EDM includes the SchoolDBEntities class, which is derived from the class, as shown below.