CoreLoggerExtensions.QueryCompilationStarting Metodo

Definizione

Spazio dei nomi:

Microsoft.EntityFrameworkCore.Diagnostics

Assembly:

Microsoft.EntityFrameworkCore.dll

Pacchetto:

Microsoft.EntityFrameworkCore v8.0.0

Overload

QueryCompilationStarting(IDiagnosticsLogger<DbLoggerCategory.Query>, DbContext, ExpressionPrinter, Expression)

Registra l'evento QueryCompilationStarting .

QueryCompilationStarting(IDiagnosticsLogger<DbLoggerCategory.Query>, DbContext, ExpressionPrinter, Expression)

Registra l'evento QueryCompilationStarting .

public static (System.Linq.Expressions.Expression Query, Microsoft.EntityFrameworkCore.Diagnostics.QueryExpressionEventData? EventData) QueryCompilationStarting (this Microsoft.EntityFrameworkCore.Diagnostics.IDiagnosticsLogger<Microsoft.EntityFrameworkCore.DbLoggerCategory.Query> diagnostics, Microsoft.EntityFrameworkCore.DbContext? context, Microsoft.EntityFrameworkCore.Query.ExpressionPrinter expressionPrinter, System.Linq.Expressions.Expression queryExpression);

static member QueryCompilationStarting : Microsoft.EntityFrameworkCore.Diagnostics.IDiagnosticsLogger<Microsoft.EntityFrameworkCore.DbLoggerCategory.Query> * Microsoft.EntityFrameworkCore.DbContext * Microsoft.EntityFrameworkCore.Query.ExpressionPrinter * System.Linq.Expressions.Expression -> ValueTuple<System.Linq.Expressions.Expression, Microsoft.EntityFrameworkCore.Diagnostics.QueryExpressionEventData>

<Extension()>
Public Function QueryCompilationStarting (diagnostics As IDiagnosticsLogger(Of DbLoggerCategory.Query), context As DbContext, expressionPrinter As ExpressionPrinter, queryExpression As Expression) As ValueTuple(Of Expression, QueryExpressionEventData)

Parametri

diagnostics

IDiagnosticsLogger<DbLoggerCategory.Query>

Logger di diagnostica da usare.

context

DbContext

Oggetto corrente DbContexto null se non noto.

expressionPrinter

ExpressionPrinter

Usato per creare una rappresentazione leggibile dell'albero delle espressioni.

queryExpression

Expression

Struttura ad albero delle espressioni di query.

Restituisce

ValueTuple<Expression,QueryExpressionEventData>

Espressione di query e dati dell'evento.