CreateTableBuilder<TColumns>.PrimaryKey 方法

定义

命名空间:

Microsoft.EntityFrameworkCore.Migrations.Operations.Builders

程序集:

Microsoft.EntityFrameworkCore.Relational.dll

包:

Microsoft.EntityFrameworkCore.Relational v9.0.0

Source:

CreateTableBuilder.cs

在表上配置主键。

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)

参数

name

String

主键约束名称。

columns

Expression<Func<TColumns,Object>>

构成主键的列。

返回

OperationBuilder<AddPrimaryKeyOperation>

同一生成器，以便可以链接多个调用。