DbCommandInterceptor.ScalarExecutedAsync Metode

Referensi

Definisi

Ruang nama:: Microsoft.EntityFrameworkCore.Diagnostics

Rakitan:: Microsoft.EntityFrameworkCore.Relational.dll

Paket:: Microsoft.EntityFrameworkCore.Relational v3.0.0

Paket:: Microsoft.EntityFrameworkCore.Relational v3.1.0

Paket:: Microsoft.EntityFrameworkCore.Relational v5.0.0

Paket:: Microsoft.EntityFrameworkCore.Relational v6.0.0

Paket:: Microsoft.EntityFrameworkCore.Relational v7.0.0

Paket:: Microsoft.EntityFrameworkCore.Relational v8.0.0

Penting

Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.

Dipanggil segera setelah EF memanggil ExecuteScalarAsync().

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).

public virtual System.Threading.Tasks.Task<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);

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>
override this.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>
override this.ScalarExecutedAsync : System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.Diagnostics.CommandExecutedEventData * obj * System.Threading.CancellationToken -> System.Threading.Tasks.ValueTask<obj>

Public Overridable Function ScalarExecutedAsync (command As DbCommand, eventData As CommandExecutedEventData, result As Object, Optional cancellationToken As CancellationToken = Nothing) As Task(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

Task<Object>

ValueTask<Object>

Memberikan Task hasil yang akan digunakan EF. Implementasi normal dari metode ini untuk setiap pencegat yang tidak mencoba mengubah hasilnya adalah mengembalikan nilai yang result diteruskan, sering kali menggunakan FromResult<TResult>(TResult)

Penerapan

ScalarExecutedAsync(DbCommand, CommandExecutedEventData, Object, CancellationToken)

Pengecualian

OperationCanceledException

CancellationToken Jika dibatalkan.

Berlaku untuk

Bagikan melalui