For more information see Custom Code First Conventions. The default code first convention for ForeignKey relationship expects foreign key property name match with the primary key property. It is used to express the relationship between two tables. If you keep this convention, the generated tablesĬustom conventions are supported in EF6 onwards. data-annotations The ForeignKey attribute is used to specify which property is the foreign key in a relationship. Is equivalent to the metadata element when specified under field.Configure Code First to ignore PluralizingTableName convention Annotation used to define the foreign key for a relationship field. categorytoken: - Foreign key pointing to the object category.Protected override void OnModelCreating(DbModelBuilder modelBuilder) All annotations and meta data (including calibration, maps, vehicle coordinates etc.). The following example removes PluralizingTableNameConvention. You can remove any of the conventions defined in the .Conventions namespace. To learn about the conventions that DbContext uses to discover the connection to use see Connections and Models. Code First uses this property to discover and pull in any referenced types. In the following example, there is only one DbSet property defined on the SchoolEntities class ( Departments). If your types participate in an inheritance hierarchy, it is enough to define a DbSet property for the base class, and the derived types will be automatically included, if they are in the same assembly as the base class. Code First will include these types and also will pull in any referenced types, even if the referenced types are defined in a different assembly. To do this, you define a context class that derives from DbContext and exposes DbSet properties for the types that you want to be part of the model. ![]() In addition to defining the classes, you also need to let DbContext know which types you want to include in the model. NET Framework classes that define your conceptual (domain) model. When using Code First development you usually begin by writing. This topic provides an overview of the conventions used by Code First. For more information see Data Annotations, Fluent API - Relationships, Fluent API - Types & Properties and Fluent API with VB.NET.Ī detailed list of Code First conventions is available in the API Documentation. Precedence is given to configuration through the fluent API followed by data annotations and then conventions. ![]() You can further configure your model by using data annotations or the fluent API. ![]() The conventions are defined in the .Conventions namespace. Conventions are sets of rules that are used to automatically configure a conceptual model based on class definitions when working with Code First. The basic shape of the model is detected by using conventions. Code First enables you to describe a model by using C# or Visual Basic. The ForeignKey attribute is used to specify which property is the foreign key in a relationship.
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