Interface IPrincipalKeyValueFactory

Namespace: Microsoft.EntityFrameworkCore.ChangeTracking

Assembly: Microsoft.EntityFrameworkCore.dll

Represents a factory for key values based on the primary/principal key values taken from various forms of entity data.

This type is typically used by database providers (and other extensions). It is generally not used in application code.

public interface IPrincipalKeyValueFactory

Remarks

See Implementation of database providers and extensions for more information and examples.

Methods

CreateEquatableKey(IUpdateEntry, bool)

Creates an equatable key object from the key values in the given entry.

object CreateEquatableKey(IUpdateEntry entry, bool fromOriginalValues = false)

Parameters

entry IUpdateEntry: The entry tracking an entity instance.
fromOriginalValues bool: Whether the original or current value should be used.

Returns

object: The key value.