CoreLoggerExtensions.QueryCompilationStarting Método

Definición

Espacio de nombres:

Microsoft.EntityFrameworkCore.Diagnostics

Ensamblado:

Microsoft.EntityFrameworkCore.dll

Paquete:

Microsoft.EntityFrameworkCore v8.0.0

Sobrecargas

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

Registra el QueryCompilationStarting evento.

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

Registra el QueryCompilationStarting evento.

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)

Parámetros

diagnostics

IDiagnosticsLogger<DbLoggerCategory.Query>

Registrador de diagnóstico que se va a usar.

context

DbContext

Objeto actual DbContexto null si no se conoce.

expressionPrinter

ExpressionPrinter

Se usa para crear una representación legible del árbol de expresiones.

queryExpression

Expression

Árbol de expresiones de consulta.

Devoluciones

ValueTuple<Expression,QueryExpressionEventData>

Expresión de consulta y datos de eventos.