ConnectionString属性尚未在update-database上初始化

Question

在包管理器控制台中,我在azure上对我的数据库运行命令更新数据库,但是我收到错误,说ConnectionString属性尚未初始化.

我对本地数据库做了同样的事情,一切都很好.在我的web配置中,我已经将连接字符串更改为mach我的azure数据库,这是我的数据库上下文的样子:

 public class MadLabsDatabaseContext : IdentityDbContext<User>
{
    public MadLabsDatabaseContext()
        : base("DefaultConnection")
    {
        Configuration.LazyLoadingEnabled = true;
    }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);

        modelBuilder.Entity<IdentityUser>()
           .ToTable("AspNetUsers");
        modelBuilder.Entity<User>()
            .ToTable("AspNetUsers");
    }
}

这是web.config中的连接字符串:

<connectionStrings>
<add name="DefaultConnection" connectionString="Data Source=tcp:serverName.database.windows.net,1433;Database=madLabs_db;User ID=username;Password=password;Trusted_Connection=False;Encrypt=True;Connection Timeout=30;MultipleActiveResultSets=True;" providerName="System.Data.SqlClient" />
</connectionStrings>

这是我的Package Manager控制台代码:

Update-database -ConnectionString "Data Source=tcp:serverName.database.windows.net,1433;Database=madLabs_db;User ID=userName;Password=password;Trusted_Connection=False;Encrypt=True;Connection Timeout=30;MultipleActiveResultSets=True;" -ConnectionProviderName "System.Data.SqlClient"

为什么我收到此错误？

Answer 1

我想我已在这里回答了这个问题.

我猜你有ASP Identity 2.0.0,由于某种原因,这会导致Azure上的问题而不是本地问题,但修复很容易.

尝试将代码更改为:

public class MadLabsDatabaseContext : IdentityDbContext<User>
{
    // This is the offending line
    // Add throwIfV1Schema: false
    public MadLabsDatabaseContext() : base("DefaultConnection", throwIfV1Schema: false)
    {
        Configuration.LazyLoadingEnabled = true;
    }

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);

        modelBuilder.Entity<IdentityUser>()
           .ToTable("AspNetUsers");
        modelBuilder.Entity<User>()
           .ToTable("AspNetUsers");
    }
}

现在尝试发布到Azure,它应该工作.