EF代码先找不到数据库

Question

I have created a service which is fetching some data and being stored into the database. While fetching the data or storing the data, I can see data is being stored properly but I am unable to see the Database anywhere.

My connection string and context are as follows

public class Context: DbContext 
{
    public DBContext() : base("name=DBConnectionString") 
    {
        public DbSet<IEmployee> Employees {get; set;}
    }
}


 <connectionStrings>
    <add name="DBConnectionString" 
    connectionString="Data Source=(localdb)\v11.0;Initial Catalog=SLDB;Integrated Security=true" 
    providerName="System.Data.SqlClient"/>
 </connectionStrings>

DB isn't appearing in SQL server object explorer neither I can find it on physical file system.

I have looked at following location for physical/mdf file already

• c:\\user\\HaseebAsif
• %AppData%(roaming/local)\\Microsoft....
• c:\\Program Files\\Microsoft\\Microsoft sql server ....

When I connect to server using '(localdb)/v11.0', it just shows the system database, not mine, SLDB.

Any idea how can I see the database in SSMS or in windows explorer

Answer 1

Add AttachDbFilename=c:\\path\\todb\\SLDB.mdf to the connection string to both the project holding the EF context/models, etc. and the application itself.

You can also use application domain properties in the connection string as such |TheVariable|

Then in your Configuration.cs EF class module constructor:

public Configuration()
{
    AppDomain.CurrentDomain.SetData("TheVariable", @"c:\path\todb"); //or something dynamic...
}

Do the same at startup of your application and then you can it so:

AttachDbFilename=|TheVariable|\SLDB.mdf

Do an Update-database again, the MDF file will be at the path specified in the connection string.

If the database does not appear in SQL Management Studio at this point, right click the Database node and Attach the MDF manually.