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C# MVC 5未在DB中自动创建AspNetUser表

c# asp.net-mvc asp.net-mvc-5

C# MVC 5未在DB中自动创建AspNetUser表,c#,asp.net-mvc,asp.net-mvc-5,C#,Asp.net Mvc,Asp.net Mvc 5,我是MVC 5新手，我正在尝试在创建的新数据库上下文中配置单个用户身份验证，但ApplicationDBContext没有在我的新数据库中创建AspNetUser表。有人能给我指出正确的方向吗 错误 The entity type ApplicationUser is not part of the model for the current context. IdentityModel.cs public class ApplicationDbContext : IdentityDbCont

我是MVC 5新手，我正在尝试在创建的新数据库上下文中配置单个用户身份验证，但ApplicationDBContext没有在我的新数据库中创建AspNetUser表。有人能给我指出正确的方向吗

错误

The entity type ApplicationUser is not part of the model for the current context.
IdentityModel.cs

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    public ApplicationDbContext()
        : base("MyEntities", throwIfV1Schema: false)
    {
    }

    public static ApplicationDbContext Create()
    {
        return new ApplicationDbContext();
    }
}

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    public ApplicationDbContext()
        : base("MyConnection", throwIfV1Schema: false)
    {
    }

    public static ApplicationDbContext Create()
    {
        return new ApplicationDbContext();
    }
}

public类ApplicationDbContext:IdentityDbContext
{
公共应用程序上下文（）
：base（“MyEntities”，throwifvv1schema:false）
{
}
公共静态应用程序上下文创建（）
{
返回新的ApplicationDbContext（）；
}
}
Web.config

<connectionStrings>
  <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\aspnet-MVC5.WebSite-20150723075149.mdf;Initial Catalog=aspnet-MVC5.WebSite-20150723075149;Integrated Security=True" providerName="System.Data.SqlClient" />
  <add name="MyEntities" connectionString="metadata=res://*/Models.UserModel.csdl|res://*/Models.UserModel.ssdl|res://*/Models.UserModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=devserver;initial catalog=MyEntities;user id=user;password=pass;MultipleActiveResultSets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient" />
</connectionStrings>

<connectionStrings>
  <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\aspnet-MVC.WebSite-20150723075149.mdf;Initial Catalog=aspnet-MVC.WebSite-20150723075149;Integrated Security=True" providerName="System.Data.SqlClient" />
  <add name="MyConnection" connectionString="Data Source=devserver;initial catalog=MyCatalog;user id=user;password=pass;Integrated Security=True" providerName="System.Data.SqlClient" />
 </connectionStrings>
我知道MVC应该自动神奇地创建UserStore和相关表，但显然我在这里做了一些完全愚蠢的事情。非常感谢您的帮助。

您是否使用代码优先迁移

通常，为了创建数据库，您必须启用迁移、创建新迁移并应用它们

进入PackageManager控制台并执行以下命令

enable-migrations
add-migration initial
update-database
编辑

如果不想使用迁移，还可以将其放入上下文的构造函数中：

Database.SetInitializer<ApplicationDbContext>(new DropCreateDatabaseIfModelChanges<ApplicationDbContext>());

Database.SetInitializer（新的DropCreateDatabaseIfModelChanges（））；
但是每次重新创建数据库时，您都会丢失数据好吧，我做了些蠢事。基本上是试图让ApplicationDbContext使用EF创建的连接。不是正确的方法。让表格“自动神奇地”创建。我需要在Web.config中添加一个普通连接字符串，连接到所需的DB，然后在IdentityModel.cs中设置它

Web.config

<connectionStrings>
  <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\aspnet-MVC5.WebSite-20150723075149.mdf;Initial Catalog=aspnet-MVC5.WebSite-20150723075149;Integrated Security=True" providerName="System.Data.SqlClient" />
  <add name="MyEntities" connectionString="metadata=res://*/Models.UserModel.csdl|res://*/Models.UserModel.ssdl|res://*/Models.UserModel.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=devserver;initial catalog=MyEntities;user id=user;password=pass;MultipleActiveResultSets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient" />
</connectionStrings>

<connectionStrings>
  <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\aspnet-MVC.WebSite-20150723075149.mdf;Initial Catalog=aspnet-MVC.WebSite-20150723075149;Integrated Security=True" providerName="System.Data.SqlClient" />
  <add name="MyConnection" connectionString="Data Source=devserver;initial catalog=MyCatalog;user id=user;password=pass;Integrated Security=True" providerName="System.Data.SqlClient" />
 </connectionStrings>
IdentityModel.cs

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    public ApplicationDbContext()
        : base("MyEntities", throwIfV1Schema: false)
    {
    }

    public static ApplicationDbContext Create()
    {
        return new ApplicationDbContext();
    }
}

public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    public ApplicationDbContext()
        : base("MyConnection", throwIfV1Schema: false)
    {
    }

    public static ApplicationDbContext Create()
    {
        return new ApplicationDbContext();
    }
}

public类ApplicationDbContext:IdentityDbContext
{
公共应用程序上下文（）
：base（“MyConnection”，throwifvv1schema:false）
{
}
公共静态应用程序上下文创建（）
{
返回新的ApplicationDbContext（）；
}
}
希望这对某人有所帮助。感谢所有帮助过我的人。

我正在使用DB first，modified’s Response使其在我的系统上工作。在答案未修改的情况下，它不会注册，也不允许登录，也不显示注册链接，也不会自动创建魔法，但会在强制执行时抛出异常。 下面是对Web.config的修改，以使其正常工作

<connectionStrings>
<add name="DefaultConnection" connectionString="data source=devserver;initial catalog=MyCatalog;user id=user;password=pass" providerName="System.Data.SqlClient" />
<add name="MyConnection" connectionString="metadata=res://*/Models.MyCatalog.csdl|res://*/Models.MyCatalog.ssdl|res://*/Models.MyCatalog.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=devserver;initial catalog=MyCatalog;user id=user;password=pass;MultipleActiveResultSets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient" />

这可能对那些认为以上答案复杂或有其他挑战的人有所帮助。



 <add name="DefaultConnection" connectionString="Server=yourservername;Database=yourdbname;User Id=yourusername;Password=yourpassword;" providerName="System.Data.SqlClient" />
只需在web.config中创建此连接字符串，然后运行应用程序，然后注册一个帐户。现在检查数据库。

如果需要重新创建表，以下是ASP.net EF 2.2的生成脚本

USE [YourDatabaseNameHere]
GO
/****** Object:  Table [dbo].[AspNetRoles]    Script Date: 3/27/2019 3:42:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[AspNetRoles](
    [Id] [nvarchar](128) NOT NULL,
    [Name] [nvarchar](256) NOT NULL,
 CONSTRAINT [PK_dbo.AspNetRoles] PRIMARY KEY CLUSTERED 
(
    [Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
/****** Object:  Table [dbo].[AspNetUserClaims]    Script Date: 3/27/2019 3:42:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[AspNetUserClaims](
    [Id] [int] IDENTITY(1,1) NOT NULL,
    [UserId] [nvarchar](128) NOT NULL,
    [ClaimType] [nvarchar](max) NULL,
    [ClaimValue] [nvarchar](max) NULL,
 CONSTRAINT [PK_dbo.AspNetUserClaims] PRIMARY KEY CLUSTERED 
(
    [Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

GO
/****** Object:  Table [dbo].[AspNetUserLogins]    Script Date: 3/27/2019 3:42:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[AspNetUserLogins](
    [LoginProvider] [nvarchar](128) NOT NULL,
    [ProviderKey] [nvarchar](128) NOT NULL,
    [UserId] [nvarchar](128) NOT NULL,
 CONSTRAINT [PK_dbo.AspNetUserLogins] PRIMARY KEY CLUSTERED 
(
    [LoginProvider] ASC,
    [ProviderKey] ASC,
    [UserId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
/****** Object:  Table [dbo].[AspNetUserRoles]    Script Date: 3/27/2019 3:42:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[AspNetUserRoles](
    [UserId] [nvarchar](128) NOT NULL,
    [RoleId] [nvarchar](128) NOT NULL,
 CONSTRAINT [PK_dbo.AspNetUserRoles] PRIMARY KEY CLUSTERED 
(
    [UserId] ASC,
    [RoleId] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO
/****** Object:  Table [dbo].[AspNetUsers]    Script Date: 3/27/2019 3:42:37 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[AspNetUsers](
    [Id] [nvarchar](128) NOT NULL,
    [Email] [nvarchar](256) NULL,
    [EmailConfirmed] [bit] NOT NULL,
    [PasswordHash] [nvarchar](max) NULL,
    [SecurityStamp] [nvarchar](max) NULL,
    [PhoneNumber] [nvarchar](max) NULL,
    [PhoneNumberConfirmed] [bit] NOT NULL,
    [TwoFactorEnabled] [bit] NOT NULL,
    [LockoutEndDateUtc] [datetime] NULL,
    [LockoutEnabled] [bit] NOT NULL,
    [AccessFailedCount] [int] NOT NULL,
    [UserName] [nvarchar](256) NOT NULL,
 CONSTRAINT [PK_dbo.AspNetUsers] PRIMARY KEY CLUSTERED 
(
    [Id] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

GO
ALTER TABLE [dbo].[AspNetUserClaims]  WITH CHECK ADD  CONSTRAINT [FK_dbo.AspNetUserClaims_dbo.AspNetUsers_UserId] FOREIGN KEY([UserId])
REFERENCES [dbo].[AspNetUsers] ([Id])
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[AspNetUserClaims] CHECK CONSTRAINT [FK_dbo.AspNetUserClaims_dbo.AspNetUsers_UserId]
GO
ALTER TABLE [dbo].[AspNetUserLogins]  WITH CHECK ADD  CONSTRAINT [FK_dbo.AspNetUserLogins_dbo.AspNetUsers_UserId] FOREIGN KEY([UserId])
REFERENCES [dbo].[AspNetUsers] ([Id])
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[AspNetUserLogins] CHECK CONSTRAINT [FK_dbo.AspNetUserLogins_dbo.AspNetUsers_UserId]
GO
ALTER TABLE [dbo].[AspNetUserRoles]  WITH CHECK ADD  CONSTRAINT [FK_dbo.AspNetUserRoles_dbo.AspNetRoles_RoleId] FOREIGN KEY([RoleId])
REFERENCES [dbo].[AspNetRoles] ([Id])
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[AspNetUserRoles] CHECK CONSTRAINT [FK_dbo.AspNetUserRoles_dbo.AspNetRoles_RoleId]
GO
ALTER TABLE [dbo].[AspNetUserRoles]  WITH CHECK ADD  CONSTRAINT [FK_dbo.AspNetUserRoles_dbo.AspNetUsers_UserId] FOREIGN KEY([UserId])
REFERENCES [dbo].[AspNetUsers] ([Id])
ON DELETE CASCADE
GO
ALTER TABLE [dbo].[AspNetUserRoles] CHECK CONSTRAINT [FK_dbo.AspNetUserRoles_dbo.AspNetUsers_UserId]
GO
你试过在上面放些数据吗？EF在放入一些数据并调用
SaveChanges（）之前不生成DB方法。还没有数据。这个答案在网上应该更明显。我正在重写一个应用程序，它是DBFirst，需要升级数据库。所有其他模型都表现不错，只是不明白为什么它没有在新数据库中自动创建。