Lingua

SqlNullabilityProcessor.TryMakeNonNullable Metodo

Definizione

Spazio dei nomi:
Microsoft.EntityFrameworkCore.Query
Assembly:
Microsoft.EntityFrameworkCore.Relational.dll
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v10.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v11.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v9.0.0
Origine:
SqlNullabilityProcessor.cs
Origine:
SqlNullabilityProcessor.cs
Origine:
SqlNullabilityProcessor.cs

Tenta di convertire l'oggetto specificato selectExpression, che ha una proiezione nullable, in un'espressione identica che non dispone di una proiezione nullable. Viene usato per estrarre valori NULL dall'esterno, ad esempio l'argomento del parametro di SQL Server OPENJSON, per consentire una traduzione più efficiente.

[Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkInternal]
protected virtual bool TryMakeNonNullable(Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression selectExpression, out Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression? rewrittenSelectExpression, out bool? foundNull);
[<Microsoft.EntityFrameworkCore.Infrastructure.EntityFrameworkInternal>]
abstract member TryMakeNonNullable : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression * SelectExpression * Nullable -> bool
override this.TryMakeNonNullable : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression * SelectExpression * Nullable -> bool
Protected Overridable Function TryMakeNonNullable (selectExpression As SelectExpression, ByRef rewrittenSelectExpression As SelectExpression, ByRef foundNull As Nullable(Of Boolean)) As Boolean

Parametri

selectExpression
SelectExpression
rewrittenSelectExpression
SelectExpression
foundNull
Nullable<Boolean>

Valori restituiti

Boolean
Attributi
EntityFrameworkInternalAttribute

Si applica a