Bagikan melalui

SelectExpression.AddLeftJoin Metode

  • Referensi

Definisi

Ruang nama:
Microsoft.EntityFrameworkCore.Query.SqlExpressions
Rakitan:
Microsoft.EntityFrameworkCore.Relational.dll
Paket:
Microsoft.EntityFrameworkCore.Relational v3.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v3.1.0
Paket:
Microsoft.EntityFrameworkCore.Relational v5.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v6.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v7.0.0
Paket:
Microsoft.EntityFrameworkCore.Relational v8.0.0

Overload

AddLeftJoin(SelectExpression, SqlExpression, Type)
Kedaluwarsa.

Menambahkan yang diberikan SelectExpression ke sumber tabel menggunakan LEFT JOIN.
AddLeftJoin(SelectExpression, SqlExpression)

Menambahkan yang diberikan SelectExpression ke sumber tabel menggunakan LEFT JOIN.
AddLeftJoin(ShapedQueryExpression, SqlExpression, Expression)

Menambahkan ekspresi kueri dari sumber tabel yang diberikan ShapedQueryExpression ke menggunakan LEFT JOIN dan menggabungkan pembentuk.

AddLeftJoin(SelectExpression, SqlExpression, Type)

Perhatian

Use the other overloads.

Menambahkan yang diberikan SelectExpression ke sumber tabel menggunakan 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)

Parameter

innerSelectExpression
SelectExpression

A SelectExpression untuk bergabung dengan.

joinPredicate
SqlExpression

Predikat yang digunakan untuk gabungan.

transparentIdentifierType
Type

Jenis hasil yang dihasilkan setelah melakukan gabungan.

Atribut
ObsoleteAttribute

Berlaku untuk

AddLeftJoin(SelectExpression, SqlExpression)

Menambahkan yang diberikan SelectExpression ke sumber tabel menggunakan 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)

Parameter

innerSelectExpression
SelectExpression

A SelectExpression untuk bergabung dengan.

joinPredicate
SqlExpression

Predikat yang digunakan untuk gabungan.

Berlaku untuk

AddLeftJoin(ShapedQueryExpression, SqlExpression, Expression)

Menambahkan ekspresi kueri dari sumber tabel yang diberikan ShapedQueryExpression ke menggunakan LEFT JOIN dan menggabungkan pembentuk.

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

Parameter

innerSource
ShapedQueryExpression

A ShapedQueryExpression untuk bergabung dengan.

joinPredicate
SqlExpression

Predikat yang digunakan untuk gabungan.

outerShaper
Expression

Ekspresi untuk pembentuk luar.

Mengembalikan

Expression

Ekspresi yang membentuk hasil gabungan ini.

Berlaku untuk