CreateTableBuilder<TColumns>.PrimaryKey Methode

Definition

Namespace:

Microsoft.EntityFrameworkCore.Migrations.Operations.Builders

Assembly:

Microsoft.EntityFrameworkCore.Relational.dll

Paket:

Microsoft.EntityFrameworkCore.Relational v8.0.0

Konfiguriert einen Primärschlüssel für die Tabelle.

public virtual Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddPrimaryKeyOperation> PrimaryKey (string name, System.Linq.Expressions.Expression<Func<TColumns,object>> columns);

abstract member PrimaryKey : string * System.Linq.Expressions.Expression<Func<'Columns, obj>> -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddPrimaryKeyOperation>
override this.PrimaryKey : string * System.Linq.Expressions.Expression<Func<'Columns, obj>> -> Microsoft.EntityFrameworkCore.Migrations.Operations.Builders.OperationBuilder<Microsoft.EntityFrameworkCore.Migrations.Operations.AddPrimaryKeyOperation>

Public Overridable Function PrimaryKey (name As String, columns As Expression(Of Func(Of TColumns, Object))) As OperationBuilder(Of AddPrimaryKeyOperation)

Parameter

name

String

Der Name der Primärschlüsseleinschränkung.

columns

Expression<Func<TColumns,Object>>

Die Spalten, aus denen der Primärschlüssel besteht.

Gibt zurück

OperationBuilder<AddPrimaryKeyOperation>

Derselbe Generator, damit mehrere Aufrufe verkettet werden können.