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SelectExpression.AddLeftJoin Metodo

  • Riferimento

Definizione

Spazio dei nomi:
Microsoft.EntityFrameworkCore.Query.SqlExpressions
Assembly:
Microsoft.EntityFrameworkCore.Relational.dll
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v3.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v3.1.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v5.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v6.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v7.0.0
Pacchetto:
Microsoft.EntityFrameworkCore.Relational v8.0.0

Overload

AddLeftJoin(SelectExpression, SqlExpression, Type)
Obsoleti.

Aggiunge l'oggetto specificato SelectExpression alle origini di tabella usando LEFT JOIN.
AddLeftJoin(SelectExpression, SqlExpression)

Aggiunge l'oggetto specificato SelectExpression alle origini di tabella usando LEFT JOIN.
AddLeftJoin(ShapedQueryExpression, SqlExpression, Expression)

Aggiunge l'espressione di query dell'oggetto specificato ShapedQueryExpression alle origini di tabella usando LEFT JOIN e combinare i shaper.

AddLeftJoin(SelectExpression, SqlExpression, Type)

Attenzione

Use the other overloads.

Aggiunge l'oggetto specificato SelectExpression alle origini di tabella usando LEFT JOIN.

public void AddLeftJoin (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression innerSelectExpression, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression joinPredicate, Type transparentIdentifierType);
[System.Obsolete("Use the other overloads.")]
public void AddLeftJoin (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression innerSelectExpression, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression joinPredicate, Type transparentIdentifierType);
[System.Obsolete("Use the other overloads.")]
public void AddLeftJoin (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression innerSelectExpression, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression joinPredicate, Type? transparentIdentifierType);
member this.AddLeftJoin : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression * Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * Type -> unit
[<System.Obsolete("Use the other overloads.")>]
member this.AddLeftJoin : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression * Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * Type -> unit
Public Sub AddLeftJoin (innerSelectExpression As SelectExpression, joinPredicate As SqlExpression, transparentIdentifierType As Type)

Parametri

innerSelectExpression
SelectExpression

Oggetto SelectExpression con cui partecipare.

joinPredicate
SqlExpression

Predicato da usare per il join.

transparentIdentifierType
Type

Tipo del risultato generato dopo l'esecuzione del join.

Attributi
ObsoleteAttribute

Si applica a

AddLeftJoin(SelectExpression, SqlExpression)

Aggiunge l'oggetto specificato SelectExpression alle origini di tabella usando LEFT JOIN.

public void AddLeftJoin (Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression innerSelectExpression, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression joinPredicate);
member this.AddLeftJoin : Microsoft.EntityFrameworkCore.Query.SqlExpressions.SelectExpression * Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression -> unit
Public Sub AddLeftJoin (innerSelectExpression As SelectExpression, joinPredicate As SqlExpression)

Parametri

innerSelectExpression
SelectExpression

Oggetto SelectExpression con cui partecipare.

joinPredicate
SqlExpression

Predicato da usare per il join.

Si applica a

AddLeftJoin(ShapedQueryExpression, SqlExpression, Expression)

Aggiunge l'espressione di query dell'oggetto specificato ShapedQueryExpression alle origini di tabella usando LEFT JOIN e combinare i shaper.

public System.Linq.Expressions.Expression AddLeftJoin (Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression innerSource, Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression joinPredicate, System.Linq.Expressions.Expression outerShaper);
member this.AddLeftJoin : Microsoft.EntityFrameworkCore.Query.ShapedQueryExpression * Microsoft.EntityFrameworkCore.Query.SqlExpressions.SqlExpression * System.Linq.Expressions.Expression -> System.Linq.Expressions.Expression
Public Function AddLeftJoin (innerSource As ShapedQueryExpression, joinPredicate As SqlExpression, outerShaper As Expression) As Expression

Parametri

innerSource
ShapedQueryExpression

Oggetto ShapedQueryExpression con cui partecipare.

joinPredicate
SqlExpression

Predicato da usare per il join.

outerShaper
Expression

Espressione per lo shaper esterno.

Restituisce

Expression

Espressione che forma il risultato di questo join.

Si applica a