如何在 Entity Framework 中定义枚举？

Question

我担心我是否正确存储了枚举值？在我的 EventModel class 中，我将它们存储为 int Id。

如果您能想到更好的数据库设计，我将不胜感激？有什么我应该改变的吗？

事件模型：

public class EventModel
{
public int Id { get; set; }

public string Title { get; set; }

public string Location { get; set; }

public DateTime StartDate { get; set; }

public DateTime EndDate { get; set; }

public byte[] EventLogo { get; set; }

public string Description { get; set; }

public List<Ticket> Tickets { get; set; }

public int EventTypeId { get; set; }

public int EventTopicId { get; set; }
}

门票：

public class Ticket
{
    public int EventId { get; set; }

public string Name { get; set; }

public int Quantity { get; set; }

public decimal Price { get; set; }

public bool Free { get; set; }
}

事件类型枚举：

public enum EventType
{
    AppearanceOrSinging = 1,
    Attraction = 2,
    Conference = 3,
    Gaming = 4,
    Dinner = 5,
    FestivalOrFair = 6,
    SocialAndNetworking = 7,
    Competition = 8,
    Tour = 9, 
    Race = 10,
    SeminarOrTalk = 12,
    Workshop = 13,
    Other = 99
}

事件主题枚举：

public enum EventTopic
{
    BusinessAndProfessional = 1,
    Sporting = 2,
    CharityAndCause = 3,
    Music = 4,
    TravelAndOutdoor = 5,
    FashionAndBeauty = 6,
    ReligionAndSpirituality = 7,
    Education = 8,
    FoodAndDrinks = 9,
    CommunityAndCulture = 10,
    ComputingAndTechnology = 11,
    Other = 99
}

Answer 1

Entity Framework 从版本 5 开始直接支持枚举。您可以简单地替换您的属性定义，如下所示：

public EventType EventType { get; set; }

public EventTopic EventTopic { get; set; }

见MSDN

如何在 Entity Framework 中定义枚举？

How to define Enums in Entity Framework?

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