IForeignKeyConstraint Interface

Definition

Namespace:

Microsoft.EntityFrameworkCore.Metadata

Assembly:

Microsoft.EntityFrameworkCore.Relational.dll

Package:

Microsoft.EntityFrameworkCore.Relational v9.0.0

Source:

IForeignKeyConstraint.cs

Represents a foreign key constraint.

public interface IForeignKeyConstraint : Microsoft.EntityFrameworkCore.Infrastructure.IAnnotatable

type IForeignKeyConstraint = interface
    interface IAnnotatable
    interface IReadOnlyAnnotatable

Public Interface IForeignKeyConstraint
Implements IAnnotatable

Implements

IAnnotatable IReadOnlyAnnotatable

Remarks

See Modeling entity types and relationships for more information and examples.

Properties

Columns	Gets the columns that are participating in the foreign key constraint.
Item[String]	Gets the value of the annotation with the given name, returning null if it does not exist. (Inherited from IReadOnlyAnnotatable)
MappedForeignKeys	Gets the mapped foreign keys.
Name	Gets the name of the foreign key constraint.
OnDeleteAction	Gets the action to be performed when the referenced row is deleted.
PrincipalColumns	Gets the columns that are referenced by the foreign key constraint.
PrincipalTable	Gets the table that is referenced by the foreign key constraint.
PrincipalUniqueConstraint	Gets the unique constraint on the columns referenced by the foreign key constraint.
Table	Gets the table on with the foreign key constraint is declared.

Methods

AddRuntimeAnnotation(String, Object)	Adds a runtime annotation to this object. Throws if an annotation with the specified name already exists. (Inherited from IAnnotatable)
AnnotationsToDebugString(Int32)	Gets the debug string for all annotations declared on the object. (Inherited from IReadOnlyAnnotatable)
FindAnnotation(String)	Gets the annotation with the given name, returning null if it does not exist. (Inherited from IReadOnlyAnnotatable)
FindRuntimeAnnotation(String)	Gets the runtime annotation with the given name, returning null if it does not exist. (Inherited from IAnnotatable)
FindRuntimeAnnotationValue(String)	Gets the value of the runtime annotation with the given name, returning null if it does not exist. (Inherited from IAnnotatable)
GetAnnotation(String)	Gets the annotation with the given name, throwing if it does not exist. (Inherited from IReadOnlyAnnotatable)
GetAnnotations()	Gets all annotations on the current object. (Inherited from IReadOnlyAnnotatable)
GetOrAddRuntimeAnnotationValue<TValue,TArg>(String, Func<TArg,TValue>, TArg)	Gets the value of the runtime annotation with the given name, adding it if one does not exist. (Inherited from IAnnotatable)
GetRuntimeAnnotations()	Gets all the runtime annotations on the current object. (Inherited from IAnnotatable)
RemoveRuntimeAnnotation(String)	Removes the given runtime annotation from this object. (Inherited from IAnnotatable)
SetRuntimeAnnotation(String, Object)	Sets the runtime annotation stored under the given key. Overwrites the existing annotation if an annotation with the specified name already exists. (Inherited from IAnnotatable)
ToDebugString(MetadataDebugStringOptions, Int32)	Creates a human-readable representation of the given metadata. Warning: Do not rely on the format of the returned string. It is designed for debugging only and may change arbitrarily between releases.

Extension Methods