Question

我正在尝试首先使用Entityframework代码来实现ASP.NET MVC 4应用程序。我的DbContext是这样的

[DbConfigurationType(typeof(MySqlEFConfiguration))]
public class ApplicationDbContext : IdentityDbContext<ApplicationUser>
{
    public ApplicationDbContext(): this("MyConnection") { }
    public ApplicationDbContext(string connStringName) : base(connStringName) { }
    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);
        //ASPNetUsers -> User
        modelBuilder.Entity<ApplicationUser>().ToTable("User");
        //ASPNetRoles -> Role
        modelBuilder.Entity<IdentityRole>().ToTable("Role");
        //ASPNetUserClaims -> UserClaims
        modelBuilder.Entity<IdentityUserClaim>().ToTable("UserClaims");
        //ASPNetUserLogin -> UserLogin
        modelBuilder.Entity<IdentityUserLogin>().ToTable("UserLogin");
        //ASPNetUserRole -> UserRole
        modelBuilder.Entity<IdentityUserRole>().ToTable("UserRole");
    }

和如下所示的connectionString

<connectionStrings> <add name="MyConnection" connectionString="Server=server; Database=dbname; Uid=user; Pwd=pw; Convert Zero Datetime=True; Allow User Variables=True;" providerName="MySql.Data.MySqlClient" /> </connectionStrings> 但是当我要启用迁移和更新数据库时，它将给出类似

的错误

提供程序未返回ProviderManifestToken字符串。

我的connectionString在另一个示例项目中运行正常。我该如何解决？

ASP.Net错误：更改连接字符串和迁移时

0 个答案: