The entity type ApplicationUser is not part of the model for the current context. Used two different databases at beginning of project

Question

I\'ve created an MVC 4 application using entity framework to read and write data to a database I am hosting on an Azure database. The Azure database was supposed to keep th

Answer 1

Use your database name instead of passing connection string. Check the database name in my example TestDB

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

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

Answer 2

I have tried to reproduce your issue according with below steps:

1) create Asp.net MVC template, then register a new user.

Result: We could find user info on local database.

2) Add controller with views using Entity Framework. And use Azure SQL database as its resource.

Result: we will find two connection in our web.config

3) Delete default connection string

4) Change Application DB Context connection string

   <add name="jambdbEntities" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=tcp:jambdb.database.windows.net,1433;initial catalog=jambdb;user id=jambor;password=***;MultipleActiveResultSets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient" />

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

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

After above steps, My application give me below error:

Solution:

1) Edit 'DefaultConnection' connection string

  <connectionStrings>
    <add name="jambdbEntitiesapplication"   providerName="System.Data.SqlClient" connectionString="Server=tcp:jambdb.database.windows.net,1433;Initial Catalog=jambdb;Persist Security Info=False;User ID=jambor;Password=***;MultipleActiveResultSets=False;Encrypt=True;TrustServerCertificate=False;Connection Timeout=30;" />
    <add name="jambdbEntities" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=System.Data.SqlClient;provider connection string=&quot;data source=tcp:jambdb.database.windows.net,1433;initial catalog=jambdb;user id=jambor;password=***;MultipleActiveResultSets=True;App=EntityFramework&quot;" providerName="System.Data.EntityClient" />
  </connectionStrings>

2) Modify the code:

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

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

3) Modify AutomaticMigrationsEnabled = true; in Configuration class under Migrations folder.

Here is the result: