EntityEntry<TEntity>.Reference Method

Definition

Namespace:

Microsoft.EntityFrameworkCore.ChangeTracking

Assembly:

Microsoft.EntityFrameworkCore.dll

Package:

Microsoft.EntityFrameworkCore v8.0.0

Overloads

Reference<TProperty>(INavigationBase)	Provides access to change tracking and loading information for a reference (i.e. non-collection) navigation that associates this entity to another entity.
Reference<TProperty>(Expression<Func<TEntity,TProperty>>)	Provides access to change tracking and loading information for a reference (i.e. non-collection) navigation property that associates this entity to another entity.
Reference<TProperty>(String)	Provides access to change tracking and loading information for a reference (i.e. non-collection) navigation that associates this entity to another entity.

Reference<TProperty>(INavigationBase)

Provides access to change tracking and loading information for a reference (i.e. non-collection) navigation that associates this entity to another entity.

public virtual Microsoft.EntityFrameworkCore.ChangeTracking.ReferenceEntry<TEntity,TProperty> Reference<TProperty> (Microsoft.EntityFrameworkCore.Metadata.INavigationBase navigation) where TProperty : class;

override this.Reference : Microsoft.EntityFrameworkCore.Metadata.INavigationBase -> Microsoft.EntityFrameworkCore.ChangeTracking.ReferenceEntry<'Entity, 'Property (requires 'Entity : null and 'Property : null)> (requires 'Property : null)

Public Overridable Function Reference(Of TProperty As Class) (navigation As INavigationBase) As ReferenceEntry(Of TEntity, TProperty)

Type Parameters

TProperty

Parameters

navigation

INavigationBase

The reference navigation.

Returns

ReferenceEntry<TEntity,TProperty>

An object that exposes change tracking information and operations for the given navigation property.

Remarks

See Accessing tracked entities in EF Core and Changing foreign keys and navigations for more information and examples.

Reference<TProperty>(Expression<Func<TEntity,TProperty>>)

Provides access to change tracking and loading information for a reference (i.e. non-collection) navigation property that associates this entity to another entity.

public virtual Microsoft.EntityFrameworkCore.ChangeTracking.ReferenceEntry<TEntity,TProperty> Reference<TProperty> (System.Linq.Expressions.Expression<Func<TEntity,TProperty?>> propertyExpression) where TProperty : class;

override this.Reference : System.Linq.Expressions.Expression<Func<'Entity, 'Property>> -> Microsoft.EntityFrameworkCore.ChangeTracking.ReferenceEntry<'Entity, 'Property (requires 'Entity : null and 'Property : null)> (requires 'Property : null)

Public Overridable Function Reference(Of TProperty As Class) (propertyExpression As Expression(Of Func(Of TEntity, TProperty))) As ReferenceEntry(Of TEntity, TProperty)

Type Parameters

TProperty

Parameters

propertyExpression

Expression<Func<TEntity,TProperty>>

A lambda expression representing the reference navigation to access information and operations for.

Returns

ReferenceEntry<TEntity,TProperty>

An object that exposes change tracking information and operations for the given navigation property.

Remarks

See Accessing tracked entities in EF Core and Changing foreign keys and navigations for more information and examples.

Reference<TProperty>(String)

Provides access to change tracking and loading information for a reference (i.e. non-collection) navigation that associates this entity to another entity.

public virtual Microsoft.EntityFrameworkCore.ChangeTracking.ReferenceEntry<TEntity,TProperty> Reference<TProperty> (string propertyName) where TProperty : class;

override this.Reference : string -> Microsoft.EntityFrameworkCore.ChangeTracking.ReferenceEntry<'Entity, 'Property (requires 'Entity : null and 'Property : null)> (requires 'Property : null)

Public Overridable Function Reference(Of TProperty As Class) (propertyName As String) As ReferenceEntry(Of TEntity, TProperty)

Type Parameters

TProperty

Parameters

propertyName

String

The name of the navigation property.

Returns

ReferenceEntry<TEntity,TProperty>

An object that exposes change tracking information and operations for the given navigation property.

Remarks

See Accessing tracked entities in EF Core and Changing foreign keys and navigations for more information and examples.