Condividi tramite


MigrationBuilder.AddForeignKey Metodo

Definizione

Overload

AddForeignKey(String, String, String, String, String, String, String, ReferentialAction, ReferentialAction)

Compila un oggetto AddForeignKeyOperation per aggiungere una nuova chiave esterna a una tabella.

AddForeignKey(String, String, String[], String, String, String, String[], ReferentialAction, ReferentialAction)

Compila un oggetto AddForeignKeyOperation per aggiungere una nuova chiave esterna composita (a più colonne) a una tabella.

AddForeignKey(String, String, String, String, String, String, String, ReferentialAction, ReferentialAction)

Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs

Compila un oggetto AddForeignKeyOperation per aggiungere una nuova chiave esterna a una tabella.

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddForeignKeyOperation> AddForeignKey (string name, string table, string column, string principalTable, string schema = default, string principalSchema = default, string principalColumn = 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> AddForeignKey (string name, string table, string column, string principalTable, string? schema = default, string? principalSchema = default, string? principalColumn = default, Microsoft.EntityFrameworkCore.Migrations.ReferentialAction onUpdate = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction, Microsoft.EntityFrameworkCore.Migrations.ReferentialAction onDelete = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction);
abstract member AddForeignKey : string * string * string * string * string * string * string * Microsoft.EntityFrameworkCore.Migrations.ReferentialAction * Microsoft.EntityFrameworkCore.Migrations.ReferentialAction -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddForeignKeyOperation>
override this.AddForeignKey : string * string * string * string * 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 AddForeignKey (name As String, table As String, column As String, principalTable As String, Optional schema As String = Nothing, Optional principalSchema As String = Nothing, Optional principalColumn 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)

Parametri

name
String

Nome del vincolo chiave esterna.

table
String

Tabella contenente la chiave esterna.

column
String

Colonna vincolata.

principalTable
String

Tabella a cui è vincolata la chiave esterna.

schema
String

Schema contenente la tabella o null se lo schema predefinito deve essere usato.

principalSchema
String

Schema contenente la tabella principale o null se lo schema predefinito deve essere usato.

principalColumn
String

Colonna a cui la colonna chiave esterna è vincolata o null per limitare la colonna chiave primaria.

onUpdate
ReferentialAction

Azione da eseguire sugli aggiornamenti.

onDelete
ReferentialAction

Azione da eseguire sulle eliminazioni.

Restituisce

Generatore per consentire l'aggiunta di annotazioni all'operazione.

Commenti

Per altre informazioni ed esempi, vedere Migrazioni di database .

Si applica a

AddForeignKey(String, String, String[], String, String, String, String[], ReferentialAction, ReferentialAction)

Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs
Origine:
MigrationBuilder.cs

Compila un oggetto AddForeignKeyOperation per aggiungere una nuova chiave esterna composita (a più colonne) a una tabella.

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddForeignKeyOperation> AddForeignKey (string name, string table, string[] columns, string principalTable, string schema = default, string principalSchema = default, string[] principalColumns = 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> AddForeignKey (string name, string table, string[] columns, string principalTable, string? schema = default, string? principalSchema = default, string[]? principalColumns = default, Microsoft.EntityFrameworkCore.Migrations.ReferentialAction onUpdate = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction, Microsoft.EntityFrameworkCore.Migrations.ReferentialAction onDelete = Microsoft.EntityFrameworkCore.Migrations.ReferentialAction.NoAction);
abstract member AddForeignKey : string * string * string[] * string * string * string * string[] * Microsoft.EntityFrameworkCore.Migrations.ReferentialAction * Microsoft.EntityFrameworkCore.Migrations.ReferentialAction -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddForeignKeyOperation>
override this.AddForeignKey : string * string * string[] * string * 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 AddForeignKey (name As String, table As String, columns As String(), principalTable As String, Optional schema As String = Nothing, Optional principalSchema As String = Nothing, Optional principalColumns 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)

Parametri

name
String

Nome del vincolo chiave esterna.

table
String

Tabella contenente la chiave esterna.

columns
String[]

Elenco ordinato di colonne vincolate.

principalTable
String

Tabella a cui è vincolata la chiave esterna.

schema
String

Schema contenente la tabella o null se lo schema predefinito deve essere usato.

principalSchema
String

Schema contenente la tabella principale o null se lo schema predefinito deve essere usato.

principalColumns
String[]

Colonne a cui le colonne chiave esterna sono vincolate o null per limitare le colonne chiave primaria.

onUpdate
ReferentialAction

Azione da eseguire sugli aggiornamenti.

onDelete
ReferentialAction

Azione da eseguire sulle eliminazioni.

Restituisce

Generatore per consentire l'aggiunta di annotazioni all'operazione.

Commenti

Per altre informazioni ed esempi, vedere Migrazioni di database .

Si applica a