Class UpdatingIdentityResolutionInterceptor

Namespace

Microsoft.EntityFrameworkCore.Diagnostics

Assembly

Microsoft.EntityFrameworkCore.dll

A IIdentityResolutionInterceptor that copies property values from the new entity instance into the tracked entity instance.

public class UpdatingIdentityResolutionInterceptor : IIdentityResolutionInterceptor, IInterceptor

Inheritance

object

UpdatingIdentityResolutionInterceptor

Implements

IIdentityResolutionInterceptor

IInterceptor

Inherited Members

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Constructors

UpdatingIdentityResolutionInterceptor(bool, bool)

Creates a new instance of the interceptor.

public UpdatingIdentityResolutionInterceptor(bool preserveModifiedValues = false, bool updateOriginalValues = false)

Parameters

preserveModifiedValues bool

If true, then values for properties marked as modified in the current instance will not be updated by values from the new instance.

updateOriginalValues bool

If true, then both current and original values of the current instance are updated to current values from the new instance.

Methods

UpdateTrackedInstance(IdentityResolutionInterceptionData, EntityEntry, object)

Called when a DbContext attempts to track a new instance of an entity with the same primary key value as an already tracked instance. This implementation copies property values from the new entity instance into the tracked entity instance.

public virtual void UpdateTrackedInstance(IdentityResolutionInterceptionData interceptionData, EntityEntry existingEntry, object newEntity)

Parameters

interceptionData IdentityResolutionInterceptionData

Contextual information about the identity resolution.

existingEntry EntityEntry

The entry for the existing tracked entity instance.

newEntity object

The new entity instance, which will be discarded after this call.