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IDbConnectionInterceptor.ConnectionOpeningAsync Metode

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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
Paket:
Microsoft.EntityFrameworkCore.Relational v9.0.0
Sumber:
IDbConnectionInterceptor.cs
Sumber:
IDbConnectionInterceptor.cs
Sumber:
IDbConnectionInterceptor.cs

Dipanggil tepat sebelum EF berniat untuk memanggil OpenAsync().

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

Parameter

connection
DbConnection

Koneksi.

eventData
ConnectionEventData

Informasi kontekstual tentang koneksi.

result
InterceptionResult

Mewakili hasil saat ini jika ada. Nilai ini akan diatur IsSuppressed ke true jika beberapa pencegat sebelumnya menekan eksekusi dengan memanggil Suppress(). Nilai ini biasanya digunakan sebagai nilai pengembalian untuk implementasi metode ini.

cancellationToken
CancellationToken

A CancellationToken untuk mengamati sambil menunggu tugas selesai.

Mengembalikan

Task<InterceptionResult>
ValueTask<InterceptionResult>

Jika IsSuppressed adalah false, maka EF akan berlanjut seperti biasa. Jika IsSuppressed adalah true, maka EF akan menekan operasi yang akan dilakukannya. Implementasi metode ini untuk setiap pencegat yang tidak mencoba menekan operasi adalah mengembalikan nilai yang result diteruskan.

Pengecualian

OperationCanceledException

CancellationToken Jika dibatalkan.

Berlaku untuk