QueryableMethodTranslatingExpressionVisitor.TranslateElementAtOrDefault Método

  • Referência

Definição

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

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

protected abstract Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression TranslateElementAtOrDefault (Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression source, System.Linq.Expressions.Expression index, bool returnDefault);
protected abstract Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression? TranslateElementAtOrDefault (Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression source, System.Linq.Expressions.Expression index, bool returnDefault);
abstract member TranslateElementAtOrDefault : Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression * System.Linq.Expressions.Expression * bool -> Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression
Protected MustOverride 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