Lingua

IDbTransactionInterceptor.TransactionStartedAsync Metodo

Definizione

Spazio dei nomi:
Microsoft.EntityFrameworkCore.Diagnostics
Assembly:
Microsoft.EntityFrameworkCore.Relational.dll
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v10.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v11.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v3.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v3.1.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v5.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v6.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v7.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v8.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v9.0.0
Origine:
IDbTransactionInterceptor.cs
Origine:
IDbTransactionInterceptor.cs
Origine:
IDbTransactionInterceptor.cs
Origine:
IDbTransactionInterceptor.cs
Origine:
IDbTransactionInterceptor.cs

Chiamato immediatamente dopo che EF chiama BeginTransactionAsync(IsolationLevel, CancellationToken).

public virtual System.Threading.Tasks.ValueTask<System.Data.Common.DbTransaction> TransactionStartedAsync(System.Data.Common.DbConnection connection, Microsoft.EntityFrameworkCore.Diagnostics.TransactionEndEventData eventData, System.Data.Common.DbTransaction result, System.Threading.CancellationToken cancellationToken = default);
public System.Threading.Tasks.Task<System.Data.Common.DbTransaction> TransactionStartedAsync(System.Data.Common.DbConnection connection, Microsoft.EntityFrameworkCore.Diagnostics.TransactionEndEventData eventData, System.Data.Common.DbTransaction result, System.Threading.CancellationToken cancellationToken = default);
public System.Threading.Tasks.ValueTask<System.Data.Common.DbTransaction> TransactionStartedAsync(System.Data.Common.DbConnection connection, Microsoft.EntityFrameworkCore.Diagnostics.TransactionEndEventData eventData, System.Data.Common.DbTransaction result, System.Threading.CancellationToken cancellationToken = default);
abstract member TransactionStartedAsync : System.Data.Common.DbConnection * Microsoft.EntityFrameworkCore.Diagnostics.TransactionEndEventData * System.Data.Common.DbTransaction * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<System.Data.Common.DbTransaction>
override this.TransactionStartedAsync : System.Data.Common.DbConnection * Microsoft.EntityFrameworkCore.Diagnostics.TransactionEndEventData * System.Data.Common.DbTransaction * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<System.Data.Common.DbTransaction>
abstract member TransactionStartedAsync : System.Data.Common.DbConnection * Microsoft.EntityFrameworkCore.Diagnostics.TransactionEndEventData * System.Data.Common.DbTransaction * System.Threading.CancellationToken -> System.Threading.Tasks.Task<System.Data.Common.DbTransaction>
abstract member TransactionStartedAsync : System.Data.Common.DbConnection * Microsoft.EntityFrameworkCore.Diagnostics.TransactionEndEventData * System.Data.Common.DbTransaction * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<System.Data.Common.DbTransaction>
Public Overridable Function TransactionStartedAsync (connection As DbConnection, eventData As TransactionEndEventData, result As DbTransaction, Optional cancellationToken As CancellationToken = Nothing) As ValueTask(Of DbTransaction)
Public Function TransactionStartedAsync (connection As DbConnection, eventData As TransactionEndEventData, result As DbTransaction, Optional cancellationToken As CancellationToken = Nothing) As Task(Of DbTransaction)
Public Function TransactionStartedAsync (connection As DbConnection, eventData As TransactionEndEventData, result As DbTransaction, Optional cancellationToken As CancellationToken = Nothing) As ValueTask(Of DbTransaction)

Parametri

connection
DbConnection

Connessione.

eventData
TransactionEndEventData

Informazioni contestuali sulla connessione e sulla transazione.

result
DbTransaction

Risultato della chiamata a BeginTransactionAsync(IsolationLevel, CancellationToken). Questo valore viene in genere usato come valore restituito per l'implementazione di questo metodo.

cancellationToken
CancellationToken

Oggetto CancellationToken da osservare durante l'attesa del completamento dell'attività.

Valori restituiti

ValueTask<DbTransaction>
Task<DbTransaction>

Oggetto Task che fornisce il risultato che verrà usato da Entity Framework. Un'implementazione di questo metodo per qualsiasi intercettore che non tenta di modificare il risultato consiste nel restituire il result valore passato, spesso usando FromResult<TResult>(TResult)

Eccezioni

OperationCanceledException

Se l'oggetto CancellationToken viene annullato.

Commenti

Questo metodo viene comunque chiamato se un intercettore ha eliminato la creazione in TransactionStarting(DbConnection, TransactionStartingEventData, InterceptionResult<DbTransaction>). In questo caso, result è il risultato restituito da TransactionStarting(DbConnection, TransactionStartingEventData, InterceptionResult<DbTransaction>).

Si applica a