EntityType“品种”未定义键。定义此EntityType的键

问题描述

它可能看起来像已经问过的问题的副本。
i已经检查了所有解决方案，但我的问题是不合逻辑的。

It may looks like a copy of already asked question.i have checked all the solutions but my problem is non-logical.

public class Breed
{
    [Key]
    [DatabaseGeneratedAttribute(DatabaseGeneratedOption.Identity)]
    int id { get; set; }
    string name { get; set; }
}

错误Kamdhenu.Models.Breed：：EntityType'Breed'没有密钥定义。定义此EntityType的键。
品种：EntityType：EntitySet品种基于未定义键的类型品种。

Error Kamdhenu.Models.Breed: : EntityType 'Breed' has no key defined. Define the key for this EntityType.Breeds: EntityType: EntitySet 'Breeds' is based on type 'Breed' that has no keys defined.

推荐答案

将属性定义为 public 。没有指定者，默认情况下它们为私有，EF不会识别和映射私有属性：

Define the properties as public. Without specifier they are private by default and EF won't recognize and map private properties:

public int id { get; set; }
public string name { get; set; }

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