CoreStrings.KeyAttributeOnDerivedEntity 方法

定义

命名空间:

Microsoft.EntityFrameworkCore.Diagnostics

程序集:

Microsoft.EntityFrameworkCore.dll

包:

Microsoft.EntityFrameworkCore v8.0.0

重载

KeyAttributeOnDerivedEntity(Object, Object, Object)

派生类型“{derivedType}”不能在属性“{property}”上具有 [Key] 属性，因为主键只能在根类型上声明。 使用 [NotMapped] 属性或调用“OnModelCreating”中基类型的“EntityTypeBuilder.Ignore”，将属性“{property}”移动到“{rootType}”或从模型中删除“{rootType}”。

KeyAttributeOnDerivedEntity(Object, Object, Object)

派生类型“{derivedType}”不能在属性“{property}”上具有 [Key] 属性，因为主键只能在根类型上声明。 使用 [NotMapped] 属性或调用“OnModelCreating”中基类型的“EntityTypeBuilder.Ignore”，将属性“{property}”移动到“{rootType}”或从模型中删除“{rootType}”。

public static string KeyAttributeOnDerivedEntity (object? derivedType, object? property, object? rootType);

static member KeyAttributeOnDerivedEntity : obj * obj * obj -> string

Public Shared Function KeyAttributeOnDerivedEntity (derivedType As Object, property As Object, rootType As Object) As String

参数

derivedType

Object

property

Object

rootType

Object

返回

String