Condividi tramite

IDbCommandInterceptor.ScalarExecuting 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

Chiamato appena prima che EF intenda chiamare ExecuteScalar().

public Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<object> ScalarExecuting (System.Data.Common.DbCommand command, Microsoft.EntityFrameworkCore.Diagnostics.CommandEventData eventData, Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<object> result);
public virtual Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<object> ScalarExecuting (System.Data.Common.DbCommand command, Microsoft.EntityFrameworkCore.Diagnostics.CommandEventData eventData, Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<object> result);
abstract member ScalarExecuting : System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.Diagnostics.CommandEventData * Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<obj> -> Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<obj>
abstract member ScalarExecuting : System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.Diagnostics.CommandEventData * Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<obj> -> Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<obj>
override this.ScalarExecuting : System.Data.Common.DbCommand * Microsoft.EntityFrameworkCore.Diagnostics.CommandEventData * Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<obj> -> Microsoft.EntityFrameworkCore.Diagnostics.InterceptionResult<obj>
Public Function ScalarExecuting (command As DbCommand, eventData As CommandEventData, result As InterceptionResult(Of Object)) As InterceptionResult(Of Object)
Public Overridable Function ScalarExecuting (command As DbCommand, eventData As CommandEventData, result As InterceptionResult(Of Object)) As InterceptionResult(Of Object)

Parametri

command
DbCommand

Comando.

eventData
CommandEventData

Informazioni contestuali sul comando e sull'esecuzione.

result
InterceptionResult<Object>

Rappresenta il risultato corrente se esiste. Questo valore sarà HasResult impostato su true se un intercettatore precedente ha eliminato l'esecuzione chiamando SuppressWithResult(TResult). Questo valore viene in genere usato come valore restituito per l'implementazione di questo metodo.

Restituisce

InterceptionResult<Object>

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

Si applica a