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IDependentKeyValueFactory<TKey>.TryCreateFromOriginalValues Method

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Definition

Namespace:
Microsoft.EntityFrameworkCore.ChangeTracking
Assembly:
Microsoft.EntityFrameworkCore.dll
Package:
Microsoft.EntityFrameworkCore v5.0.0
Package:
Microsoft.EntityFrameworkCore v6.0.0
Package:
Microsoft.EntityFrameworkCore v7.0.0
Package:
Microsoft.EntityFrameworkCore v8.0.0
Package:
Microsoft.EntityFrameworkCore v9.0.0
Source:
IDependentKeyValueFactory%60.cs
Source:
IDependentKeyValueFactory%60.cs
Source:
IDependentKeyValueFactory%60.cs

Attempts to create a key instance using original foreign key values from the given IUpdateEntry.

public bool TryCreateFromOriginalValues (Microsoft.EntityFrameworkCore.Update.IUpdateEntry entry, out TKey key);
public bool TryCreateFromOriginalValues (Microsoft.EntityFrameworkCore.Update.IUpdateEntry entry, out TKey? key);
abstract member TryCreateFromOriginalValues : Microsoft.EntityFrameworkCore.Update.IUpdateEntry * 'Key -> bool
Public Function TryCreateFromOriginalValues (entry As IUpdateEntry, ByRef key As TKey) As Boolean

Parameters

entry
IUpdateEntry

The entry tracking an entity instance.

key
TKey

The key instance.

Returns

Boolean

true if the key instance was created; false otherwise.

Applies to