ValueGenerator.NextValueAsync(EntityEntry, CancellationToken) Método

  • Referência

Definição

Namespace:
Microsoft.EntityFrameworkCore.ValueGeneration
Assembly:
Microsoft.EntityFrameworkCore.dll
Pacote:
Microsoft.EntityFrameworkCore v1.1.6
Pacote:
Microsoft.EntityFrameworkCore v2.0.3
Pacote:
Microsoft.EntityFrameworkCore v2.1.11
Pacote:
Microsoft.EntityFrameworkCore v2.2.6
Pacote:
Microsoft.EntityFrameworkCore v3.0.0
Pacote:
Microsoft.EntityFrameworkCore v3.1.0
Pacote:
Microsoft.EntityFrameworkCore v5.0.0
Pacote:
Microsoft.EntityFrameworkCore v6.0.0
Pacote:
Microsoft.EntityFrameworkCore v7.0.0
Pacote:
Microsoft.EntityFrameworkCore v8.0.0

Método de modelo a ser substituído por implementações para executar a geração de valor.

protected virtual System.Threading.Tasks.Task<object> NextValueAsync (Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry entry, System.Threading.CancellationToken cancellationToken = default);
protected virtual System.Threading.Tasks.ValueTask<object> NextValueAsync (Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry entry, System.Threading.CancellationToken cancellationToken = default);
protected virtual System.Threading.Tasks.ValueTask<object?> NextValueAsync (Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry entry, System.Threading.CancellationToken cancellationToken = default);
abstract member NextValueAsync : Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry * System.Threading.CancellationToken -> System.Threading.Tasks.Task<obj>
override this.NextValueAsync : Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry * System.Threading.CancellationToken -> System.Threading.Tasks.Task<obj>
abstract member NextValueAsync : Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<obj>
override this.NextValueAsync : Microsoft.EntityFrameworkCore.ChangeTracking.EntityEntry * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<obj>
Protected Overridable Function NextValueAsync (entry As EntityEntry, Optional cancellationToken As CancellationToken = Nothing) As Task(Of Object)
Protected Overridable Function NextValueAsync (entry As EntityEntry, Optional cancellationToken As CancellationToken = Nothing) As ValueTask(Of Object)

Parâmetros

entry
EntityEntry

A entrada de controle de alterações da entidade para a qual o valor está sendo gerado.

cancellationToken
CancellationToken

Um CancellationToken a ser observado enquanto aguarda a conclusão da tarefa.

Retornos

Task<Object>
ValueTask<Object>

O valor gerado.

Exceções

OperationCanceledException

Se o padrão CancellationToken for cancelado.

Comentários

Consulte Geração de valor do EF Core para obter mais informações e exemplos.

Aplica-se a