CreateTableBuilder<TColumns>.ForeignKey Metoda

  • Reference

Definice

Obor názvů:
Microsoft.EntityFrameworkCore.Migrations.Operations.Builders
Sestavení:
Microsoft.EntityFrameworkCore.Relational.dll
Balíček:
Microsoft.EntityFrameworkCore.Relational v1.0.6
Balíček:
Microsoft.EntityFrameworkCore.Relational v1.1.6
Balíček:
Microsoft.EntityFrameworkCore.Relational v2.0.3
Balíček:
Microsoft.EntityFrameworkCore.Relational v2.1.11
Balíček:
Microsoft.EntityFrameworkCore.Relational v2.2.6
Balíček:
Microsoft.EntityFrameworkCore.Relational v3.0.0
Balíček:
Microsoft.EntityFrameworkCore.Relational v3.1.0
Balíček:
Microsoft.EntityFrameworkCore.Relational v5.0.0
Balíček:
Microsoft.EntityFrameworkCore.Relational v6.0.0
Balíček:
Microsoft.EntityFrameworkCore.Relational v7.0.0
Balíček:
Microsoft.EntityFrameworkCore.Relational v8.0.0

Přetížení

ForeignKey(String, Expression<Func<TColumns,Object>>, String, String, String, ReferentialAction, ReferentialAction)

Nakonfiguruje v tabulce cizí klíč s jedním sloupcem.
ForeignKey(String, Expression<Func<TColumns,Object>>, String, String[], String, ReferentialAction, ReferentialAction)

Nakonfiguruje v tabulce cizí klíč s více sloupci (složený).

ForeignKey(String, Expression<Func<TColumns,Object>>, String, String, String, ReferentialAction, ReferentialAction)

Nakonfiguruje v tabulce cizí klíč s jedním sloupcem.

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddForeignKeyOperation> ForeignKey (string name, System.Linq.Expressions.Expression<Func<TColumns,object>> column, string principalTable, string principalColumn, string principalSchema = default, Microsoft.EntityFrameworkCore.Migrations.ReferentialAction onUpdate = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction, Microsoft.EntityFrameworkCore.Migrations.ReferentialAction onDelete = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction);
public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddForeignKeyOperation> ForeignKey (string name, System.Linq.Expressions.Expression<Func<TColumns,object>> column, string principalTable, string? principalColumn = default, string? principalSchema = default, Microsoft.EntityFrameworkCore.Migrations.ReferentialAction onUpdate = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction, Microsoft.EntityFrameworkCore.Migrations.ReferentialAction onDelete = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction);
abstract member ForeignKey : string * System.Linq.Expressions.Expression<Func<'Columns, obj>> * string * string * string * Microsoft.EntityFrameworkCore.Migrations.ReferentialAction * Microsoft.EntityFrameworkCore.Migrations.ReferentialAction -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddForeignKeyOperation>
override this.ForeignKey : string * System.Linq.Expressions.Expression<Func<'Columns, obj>> * string * string * string * Microsoft.EntityFrameworkCore.Migrations.ReferentialAction * Microsoft.EntityFrameworkCore.Migrations.ReferentialAction -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddForeignKeyOperation>
Public Overridable Function ForeignKey (name As String, column As Expression(Of Func(Of TColumns, Object)), principalTable As String, principalColumn As String, Optional principalSchema As String = Nothing, Optional onUpdate As ReferentialAction = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction, Optional onDelete As ReferentialAction = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction) As OperationBuilder(Of AddForeignKeyOperation)
Public Overridable Function ForeignKey (name As String, column As Expression(Of Func(Of TColumns, Object)), principalTable As String, Optional principalColumn As String = Nothing, Optional principalSchema As String = Nothing, Optional onUpdate As ReferentialAction = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction, Optional onDelete As ReferentialAction = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction) As OperationBuilder(Of AddForeignKeyOperation)

Parametry

name
String

Název omezení cizího klíče.

column
Expression<Func<TColumns,Object>>

Sloupec použitý pro cizí klíč.

principalTable
String

Tabulka, na kterou je cizí klíč omezen.

principalColumn
String

Sloupec, na který je sloupec cizího klíče omezen.

principalSchema
String

Schéma, které obsahuje tabulku, na kterou je cizí klíč omezen.

onUpdate
ReferentialAction

Slouží ReferentialAction k použití pro aktualizace.

onDelete
ReferentialAction

Příkaz ReferentialAction , který se má použít pro odstranění.

Návraty

OperationBuilder<AddForeignKeyOperation>

Stejný tvůrce, aby bylo možné zřetězených více volání.

Platí pro

ForeignKey(String, Expression<Func<TColumns,Object>>, String, String[], String, ReferentialAction, ReferentialAction)

Nakonfiguruje v tabulce cizí klíč s více sloupci (složený).

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddForeignKeyOperation> ForeignKey (string name, System.Linq.Expressions.Expression<Func<TColumns,object>> columns, string principalTable, string[] principalColumns, string principalSchema = default, Microsoft.EntityFrameworkCore.Migrations.ReferentialAction onUpdate = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction, Microsoft.EntityFrameworkCore.Migrations.ReferentialAction onDelete = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction);
public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddForeignKeyOperation> ForeignKey (string name, System.Linq.Expressions.Expression<Func<TColumns,object>> columns, string principalTable, string[]? principalColumns, string? principalSchema = default, Microsoft.EntityFrameworkCore.Migrations.ReferentialAction onUpdate = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction, Microsoft.EntityFrameworkCore.Migrations.ReferentialAction onDelete = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction);
abstract member ForeignKey : string * System.Linq.Expressions.Expression<Func<'Columns, obj>> * string * string[] * string * Microsoft.EntityFrameworkCore.Migrations.ReferentialAction * Microsoft.EntityFrameworkCore.Migrations.ReferentialAction -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddForeignKeyOperation>
override this.ForeignKey : string * System.Linq.Expressions.Expression<Func<'Columns, obj>> * string * string[] * string * Microsoft.EntityFrameworkCore.Migrations.ReferentialAction * Microsoft.EntityFrameworkCore.Migrations.ReferentialAction -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddForeignKeyOperation>
Public Overridable Function ForeignKey (name As String, columns As Expression(Of Func(Of TColumns, Object)), principalTable As String, principalColumns As String(), Optional principalSchema As String = Nothing, Optional onUpdate As ReferentialAction = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction, Optional onDelete As ReferentialAction = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction) As OperationBuilder(Of AddForeignKeyOperation)

Parametry

name
String

Název omezení cizího klíče.

columns
Expression<Func<TColumns,Object>>

Sloupce použité pro cizí klíč

principalTable
String

Tabulka, na kterou je cizí klíč omezen.

principalColumns
String[]

Sloupce, na které je sloupec cizího klíče omezen.

principalSchema
String

Schéma, které obsahuje tabulku, na kterou je cizí klíč omezen.

onUpdate
ReferentialAction

Slouží ReferentialAction k použití pro aktualizace.

onDelete
ReferentialAction

Příkaz ReferentialAction , který se má použít pro odstranění.

Návraty

OperationBuilder<AddForeignKeyOperation>

Stejný tvůrce, aby bylo možné zřetězených více volání.

Platí pro