C# 上下文和上下文初始值设定项未运行

我正在MVC站点上尝试代码优先开发，尽管global.ascx文件正在运行代码以生成新的初始值设定项，但初始值设定项本身并没有运行。我在上下文的开头和初始值设定项上都放置了一个断点，但它们都没有被命中

Global.ascx

Database.SetInitializer<AbstractContext>(new AbstractContextInitializer());

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请确保将初始值设定项代码放入Global.asax.cs文件中MVCAPApplication类的受保护的void应用程序\u Start（）方法中。

以下是关于DropCreateDatabaseAlwaysInitializer的帖子

@EduLopez是对的，请确保运行以下命令

Database.SetInitializer(new AbstractContextInitializer());

在访问上下文之前

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我也不是100%确定，但我认为在您尝试访问上下文之前不会进行种子设定。因此，在认为查询不起作用之前，请确保运行查询。

您可以将对初始值设定项的调用放入DbContext类中，如下所示：

Public Class AuctionsDataContext
    Inherits DbContext

    Public Property Auctions As DbSet(Of Auction)
    Public Property Bids As DbSet(Of Bid)

    Shared Sub New()
        Database.SetInitializer(New DropCreateDatabaseIfModelChanges(Of AuctionsDataContext))
    End Sub

End Class

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请注意，构造函数需要定义为静态（C#）或共享（VB）方法。

您是否更改了模型？初始值设定项仅在模型更改时运行。尝试运行命令var modelChanged=context.Database.CompatibleWithModel（true）；看看模型是否改变了。。。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Web;

namespace AbstractThinking2015.Models
{
    public class BlogModel
    {
        //public BlogModel()
        //{
        //    Date = DateTime.Now;
        //    User = "Liane";
        //}

        public int BlogModelId { get; set; }
        [DisplayName("Blog Title")]
        [Required(ErrorMessage = "Your blog must have a title")]
        public string Title { get; set; }
        [DisplayName("Blog Date")]
        [Required(ErrorMessage = "Your blog must have a date")]
        public DateTime Date { get; set; }
        [DisplayName("Blog User")]
        [Required(ErrorMessage = "Your blog must have a user")]
        public string User { get; set; }
        [DisplayName("Blog Category")]
        [Required(ErrorMessage = "Your blog must have a category")]
        public string Category { get; set; }
        [DisplayName("Blog Post")]
        [Required(ErrorMessage = "Your blog must have a post")]
        [DataType(DataType.MultilineText)]
        public string Post { get; set; }
    }
}

Database.SetInitializer(new AbstractContextInitializer());

Public Class AuctionsDataContext
    Inherits DbContext

    Public Property Auctions As DbSet(Of Auction)
    Public Property Bids As DbSet(Of Bid)

    Shared Sub New()
        Database.SetInitializer(New DropCreateDatabaseIfModelChanges(Of AuctionsDataContext))
    End Sub

End Class