IDbCommandInterceptor.ScalarExecutedAsync Metode
Definisi
Penting
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Dipanggil segera setelah EF memanggil ExecuteScalarAsync().
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)Parameter
- command
- DbCommand
Perintah.
- eventData
- CommandExecutedEventData
Informasi kontekstual tentang perintah dan eksekusi.
- result
- Object
Hasil panggilan ke ExecuteScalarAsync(). Nilai ini biasanya digunakan sebagai nilai pengembalian untuk implementasi metode ini.
- cancellationToken
- CancellationToken
A CancellationToken untuk mengamati sambil menunggu tugas selesai.
Mengembalikan
Memberikan Task hasil yang akan digunakan EF.
Implementasi metode ini untuk setiap pencegat yang tidak mencoba mengubah hasilnya adalah mengembalikan nilai yang result diteruskan, sering kali menggunakan FromResult<TResult>(TResult)
Pengecualian
CancellationToken Jika dibatalkan.
Keterangan
Metode ini masih dipanggil jika pencegat menekan eksekusi perintah di ScalarExecutingAsync(DbCommand, CommandEventData, InterceptionResult<Object>, CancellationToken). Dalam hal ini, result adalah hasil yang dikembalikan oleh ScalarExecutingAsync(DbCommand, CommandEventData, InterceptionResult<Object>, CancellationToken).
