DbConnectionInterceptor.ConnectionOpeningAsync Método

Algumas informações se referem a produtos de pré-lançamento que podem ser substancialmente modificados antes do lançamento. A Microsoft não oferece garantias, expressas ou implícitas, das informações aqui fornecidas.

Chamado pouco antes do EF pretende chamar OpenAsync().

public virtual System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult> ConnectionOpeningAsync (System.Data.Common.DbConnection connection, Microsoft.EntityFrameworkCore.Diagnostics.ConnectionEventData eventData, Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult result, System.Threading.CancellationToken cancellationToken = default);

public virtual System.Threading.Tasks.ValueTask<Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult> ConnectionOpeningAsync (System.Data.Common.DbConnection connection, Microsoft.EntityFrameworkCore.Diagnostics.ConnectionEventData eventData, Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult result, System.Threading.CancellationToken cancellationToken = default);

abstract member ConnectionOpeningAsync : System.Data.Common.DbConnection * Microsoft.EntityFrameworkCore.Diagnostics.ConnectionEventData * Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult>
override this.ConnectionOpeningAsync : System.Data.Common.DbConnection * Microsoft.EntityFrameworkCore.Diagnostics.ConnectionEventData * Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult * System.Threading.CancellationToken -> System.Threading.Tasks.Task<Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult>

abstract member ConnectionOpeningAsync : System.Data.Common.DbConnection * Microsoft.EntityFrameworkCore.Diagnostics.ConnectionEventData * Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult>
override this.ConnectionOpeningAsync : System.Data.Common.DbConnection * Microsoft.EntityFrameworkCore.Diagnostics.ConnectionEventData * Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult>

Public Overridable Function ConnectionOpeningAsync (connection As DbConnection, eventData As ConnectionEventData, result As InterceptionResult, Optional cancellationToken As CancellationToken = Nothing) As Task(Of InterceptionResult)

Public Overridable Function ConnectionOpeningAsync (connection As DbConnection, eventData As ConnectionEventData, result As InterceptionResult, Optional cancellationToken As CancellationToken = Nothing) As ValueTask(Of InterceptionResult)

Parâmetros

connection: DbConnection

A conexão.

eventData: ConnectionEventData

Informações contextuais sobre a conexão.

result: InterceptionResult

Representa o resultado atual se houver um. Esse valor terá IsSuppressed definido como true se algum interceptador anterior suprimisse a execução chamando Suppress(). Esse valor normalmente é usado como o valor retornado para a implementação desse método.

cancellationToken: CancellationToken

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

Retornos

Task<InterceptionResult>

ValueTask<InterceptionResult>

Se IsSuppressed for false, o EF continuará normalmente. Se IsSuppressed for true, o EF suprimirá a operação que estava prestes a executar. Uma implementação normal desse método para qualquer interceptador que não esteja tentando suprimir a operação é retornar o result valor passado.

Implementações

ConnectionOpeningAsync(DbConnection, ConnectionEventData, InterceptionResult, CancellationToken)

Exceções

OperationCanceledException

Se o padrão CancellationToken for cancelado.

Aplica-se a

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