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RelationalQueryableMethodTranslatingExpressionVisitor.TranslateElementAtOrDefault Método

  • Referência

Definição

Namespace:
Microsoft.EntityFrameworkCore.Query
Assembly:
Microsoft.EntityFrameworkCore.Relational.dll
Pacote:
Microsoft.EntityFrameworkCore.Relational v3.0.0
Pacote:
Microsoft.EntityFrameworkCore.Relational v3.1.0
Pacote:
Microsoft.EntityFrameworkCore.Relational v5.0.0
Pacote:
Microsoft.EntityFrameworkCore.Relational v6.0.0
Pacote:
Microsoft.EntityFrameworkCore.Relational v7.0.0
Pacote:
Microsoft.EntityFrameworkCore.Relational v8.0.0

Converte o ElementAt<TSource>(IQueryable<TSource>, Int32) método ou ElementAtOrDefault<TSource>(IQueryable<TSource>, Int32) sobre a origem fornecida.

protected override Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression TranslateElementAtOrDefault (Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression source, System.Linq.Expressions.Expression index, bool returnDefault);
protected override Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression? TranslateElementAtOrDefault (Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression source, System.Linq.Expressions.Expression index, bool returnDefault);
override this.TranslateElementAtOrDefault : Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression * System.Linq.Expressions.Expression * bool -> Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression
Protected Overrides Function TranslateElementAtOrDefault (source As ShapedQueryExpression, index As Expression, returnDefault As Boolean) As ShapedQueryExpression

Parâmetros

source
ShapedQueryExpression

A consulta em forma na qual o operador é aplicado.

index
Expression

O índice do elemento.

returnDefault
Boolean

Um valor que indica se o padrão deve ser retornado ou gerado.

Retornos

ShapedQueryExpression

A consulta em forma após a tradução.

Aplica-se a