CoreLoggerExtensions.QueryCompilationStarting Method

Definition

Namespace:

Microsoft.EntityFrameworkCore.Diagnostics

Assembly:

Microsoft.EntityFrameworkCore.dll

Package:

Microsoft.EntityFrameworkCore v8.0.0

Overloads

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

Logs for the QueryCompilationStarting event.

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

Logs for the QueryCompilationStarting event.

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)

Parameters

diagnostics

IDiagnosticsLogger<DbLoggerCategory.Query>

The diagnostics logger to use.

context

DbContext

The current DbContext, or null if not known.

expressionPrinter

ExpressionPrinter

Used to create a human-readable representation of the expression tree.

queryExpression

Expression

The query expression tree.

Returns

ValueTuple<Expression,QueryExpressionEventData>

The query expression and event data.