IDbConnectionInterceptor.ConnectionOpeningAsync Metodo

Riferimento

Definizione

Spazio dei nomi:: Microsoft.EntityFrameworkCore.Diagnostics

Assembly:: Microsoft.EntityFrameworkCore.Relational.dll

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:: IDbConnectionInterceptor.cs

Origine:: IDbConnectionInterceptor.cs

Origine:: IDbConnectionInterceptor.cs

Importante

Alcune informazioni sono relative alla release non definitiva del prodotto, che potrebbe subire modifiche significative prima della release definitiva. Microsoft non riconosce alcuna garanzia, espressa o implicita, in merito alle informazioni qui fornite.

Chiamato appena prima che EF intenda chiamare 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)

Parametri

connection: DbConnection

Connessione.

eventData: ConnectionEventData

Informazioni contestuali sulla connessione.

result: InterceptionResult

Rappresenta il risultato corrente se esiste. Questo valore sarà IsSuppressed impostato su true se un intercettatore precedente ha eliminato l'esecuzione chiamando Suppress(). 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

Task<InterceptionResult>

ValueTask<InterceptionResult>

Se IsSuppressed è false, EF continuerà come normale. Se IsSuppressed è true, EF elimina l'operazione che sta per eseguire. Un'implementazione di questo metodo per qualsiasi intercettatore che non tenta di eliminare l'operazione consiste nel restituire il result valore passato.

Eccezioni

OperationCanceledException

Se CancellationToken viene annullato.

Si applica a

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