IDbCommandInterceptor.ScalarExecutedAsync Metodo
Definizione
Importante
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Chiamato immediatamente dopo le chiamate ExecuteScalarAsync()EF .
public System.Threading.Tasks.Task<object> ScalarExecutedAsync (System.Data.Common.DbCommand command, Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData eventData, object result, System.Threading.CancellationToken cancellationToken = default);
public System.Threading.Tasks.ValueTask<object> ScalarExecutedAsync (System.Data.Common.DbCommand command, Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData eventData, object result, System.Threading.CancellationToken cancellationToken = default);
public System.Threading.Tasks.ValueTask<object?> ScalarExecutedAsync (System.Data.Common.DbCommand command, Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData eventData, object? result, System.Threading.CancellationToken cancellationToken = default);
public virtual System.Threading.Tasks.ValueTask<object?> ScalarExecutedAsync (System.Data.Common.DbCommand command, Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData eventData, object? result, System.Threading.CancellationToken cancellationToken = default);
abstract member ScalarExecutedAsync : System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData * obj * System.Threading.CancellationToken -> System.Threading.Tasks.Task<obj>
abstract member ScalarExecutedAsync : System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData * obj * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<obj>
abstract member ScalarExecutedAsync : System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData * obj * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<obj>
override this.ScalarExecutedAsync : System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData * obj * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<obj>
Public Function ScalarExecutedAsync (command As DbCommand, eventData As CommandExecutedEventData, result As Object, Optional cancellationToken As CancellationToken = Nothing) As Task(Of Object)
Public Function ScalarExecutedAsync (command As DbCommand, eventData As CommandExecutedEventData, result As Object, Optional cancellationToken As CancellationToken = Nothing) As ValueTask(Of Object)
Public Overridable Function ScalarExecutedAsync (command As DbCommand, eventData As CommandExecutedEventData, result As Object, Optional cancellationToken As CancellationToken = Nothing) As ValueTask(Of Object)
Parametri
- command
- DbCommand
Comando.
- eventData
- CommandExecutedEventData
Informazioni contestuali sul comando e sull'esecuzione.
- result
- Object
Risultato della chiamata a ExecuteScalarAsync(). 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.
Restituisce
Oggetto Task che fornisce il risultato che verrà usato da EF.
Un'implementazione di questo metodo per qualsiasi intercettatore che non tenta di modificare il risultato consiste nel restituire il result
valore passato, spesso usando FromResult<TResult>(TResult)
Eccezioni
Se CancellationToken viene annullato.
Commenti
Questo metodo viene ancora chiamato se un intercettatore ha eliminato l'esecuzione di un comando in ScalarExecutingAsync(DbCommand, CommandEventData, InterceptionResult<Object>, CancellationToken). In questo caso, result
è il risultato restituito da ScalarExecutingAsync(DbCommand, CommandEventData, InterceptionResult<Object>, CancellationToken).