IEntityType.FindForeignKey Method
Definition
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Overloads
| FindForeignKey(IReadOnlyProperty, IReadOnlyKey, IReadOnlyEntityType) |
Gets the foreign key for the given properties that points to a given primary or alternate key. Returns |
| FindForeignKey(IReadOnlyList<IProperty>, IKey, IEntityType) |
Gets the foreign key for the given properties that points to a given primary or alternate key.
Returns |
| FindForeignKey(IReadOnlyList<IReadOnlyProperty>, IReadOnlyKey, IReadOnlyEntityType) |
Gets the foreign key for the given properties that points to a given primary or alternate key.
Returns |
FindForeignKey(IReadOnlyProperty, IReadOnlyKey, IReadOnlyEntityType)
Gets the foreign key for the given properties that points to a given primary or alternate key. Returns null
if no foreign key is found.
public virtual Microsoft.EntityFrameworkCore.Metadata.IForeignKey? FindForeignKey (Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty property, Microsoft.EntityFrameworkCore.Metadata.IReadOnlyKey principalKey, Microsoft.EntityFrameworkCore.Metadata.IReadOnlyEntityType principalEntityType);abstract member FindForeignKey : Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty * Microsoft.EntityFrameworkCore.Metadata.IReadOnlyKey * Microsoft.EntityFrameworkCore.Metadata.IReadOnlyEntityType -> Microsoft.EntityFrameworkCore.Metadata.IForeignKey
override this.FindForeignKey : Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty * Microsoft.EntityFrameworkCore.Metadata.IReadOnlyKey * Microsoft.EntityFrameworkCore.Metadata.IReadOnlyEntityType -> Microsoft.EntityFrameworkCore.Metadata.IForeignKeyPublic Overridable Function FindForeignKey (property As IReadOnlyProperty, principalKey As IReadOnlyKey, principalEntityType As IReadOnlyEntityType) As IForeignKeyParameters
- property
- IReadOnlyProperty
The property that the foreign key is defined on.
- principalKey
- IReadOnlyKey
The primary or alternate key that is referenced.
- principalEntityType
- IReadOnlyEntityType
The entity type that the relationship targets. This may be different from the type that principalKey
is defined on when the relationship targets a derived type in an inheritance hierarchy (since the key is defined on the
base type of the hierarchy).
Returns
The foreign key, or null if none is defined.
Applies to
FindForeignKey(IReadOnlyList<IProperty>, IKey, IEntityType)
Gets the foreign key for the given properties that points to a given primary or alternate key.
Returns null if no foreign key is found.
public Microsoft.EntityFrameworkCore.Metadata.IForeignKey FindForeignKey (System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Metadata.IProperty> properties, Microsoft.EntityFrameworkCore.Metadata.IKey principalKey, Microsoft.EntityFrameworkCore.Metadata.IEntityType principalEntityType);abstract member FindForeignKey : System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Metadata.IProperty> * Microsoft.EntityFrameworkCore.Metadata.IKey * Microsoft.EntityFrameworkCore.Metadata.IEntityType -> Microsoft.EntityFrameworkCore.Metadata.IForeignKeyPublic Function FindForeignKey (properties As IReadOnlyList(Of IProperty), principalKey As IKey, principalEntityType As IEntityType) As IForeignKeyParameters
- properties
- IReadOnlyList<IProperty>
The properties that the foreign key is defined on.
- principalKey
- IKey
The primary or alternate key that is referenced.
- principalEntityType
- IEntityType
The entity type that the relationship targets. This may be different from the type that principalKey
is defined on when the relationship targets a derived type in an inheritance hierarchy (since the key is defined on the
base type of the hierarchy).
Returns
The foreign key, or null if none is defined.
Applies to
FindForeignKey(IReadOnlyList<IReadOnlyProperty>, IReadOnlyKey, IReadOnlyEntityType)
Gets the foreign key for the given properties that points to a given primary or alternate key.
Returns null if no foreign key is found.
public Microsoft.EntityFrameworkCore.Metadata.IForeignKey? FindForeignKey (System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty> properties, Microsoft.EntityFrameworkCore.Metadata.IReadOnlyKey principalKey, Microsoft.EntityFrameworkCore.Metadata.IReadOnlyEntityType principalEntityType);abstract member FindForeignKey : System.Collections.Generic.IReadOnlyList<Microsoft.EntityFrameworkCore.Metadata.IReadOnlyProperty> * Microsoft.EntityFrameworkCore.Metadata.IReadOnlyKey * Microsoft.EntityFrameworkCore.Metadata.IReadOnlyEntityType -> Microsoft.EntityFrameworkCore.Metadata.IForeignKeyPublic Function FindForeignKey (properties As IReadOnlyList(Of IReadOnlyProperty), principalKey As IReadOnlyKey, principalEntityType As IReadOnlyEntityType) As IForeignKeyParameters
- properties
- IReadOnlyList<IReadOnlyProperty>
The properties that the foreign key is defined on.
- principalKey
- IReadOnlyKey
The primary or alternate key that is referenced.
- principalEntityType
- IReadOnlyEntityType
The entity type that the relationship targets. This may be different from the type that principalKey
is defined on when the relationship targets a derived type in an inheritance hierarchy (since the key is defined on the
base type of the hierarchy).
Returns
The foreign key, or null if none is defined.
Applies to
Entity Framework
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