EF CTP5 error: Invalid object name - asp.net-mvc-2

Question

I followed the example on scottgu's blog about EF code first CTP5 but I get the error that
System.Data.SqlClient.SqlException:
Invalid object name 'dbo.Products'.
this is the code I got.
<add name="CTP5Context"
connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|EFCTP5.mdf;User Instance=true"
providerName="System.Data.SqlClient" />
public class CTP5Context : DbContext
{
public DbSet<Product> Products { get; set; }
}
public class Product
{
public int Id { get; set; }
public string ProductName { get; set; }
public int Amount { get; set; }
}
var context = new CTP5Context();
var products = context.Products;
return View(products);
im kinda clueless here I done the same as the blogpost, its not my first time with EF (But CTP5 tho), I'm I overlooking something?

Answer 1

If your table name is Product in the database, try this:
[Table("Product", SchemaName = "dbo")]
public class Product
{
public int Id { get; set; }
public string ProductName { get; set; }
public int Amount { get; set; }
}
To use the Table attribute You will need to add the following using statement:
using System.ComponentModel.DataAnnotations;
Hope this helps! It worked for me.

Answer 2

I had the same problem but I've done 2 changes and it works for me. I changed connection string (Added initial catalog)
<add name="CTP5Context"
connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\northwind.mdf;User Instance=true;initial catalog=Northwind"
providerName="System.Data.SqlClient" />
and in the Global.asax I've added following line in Application_Start()
Database.SetInitializer<Northwind>(new System.Data.Entity.DropCreateDatabaseAlways<Northwind>());

Answer 3

The exception looks like it's coming from the database. Are you sure your table name is 'Products' or is it 'Product' (singular instead of plural?)

Answer 4

It seems EF Code First works differently depending on which type of database you're connecting to. If you work with SQLCE which is what ScottGu is using to showcase EF Code First, then all tables will be created with names that are not plural. However, if you use SQL Server 2008 (that's what I tested with), it expected tables names to be plural. There are few ways around this, you could add the table name attribute as Omar shows, or you could override the OnModelCreating event for the context.
protected override void OnModelCreating(DbModelBuilder modelBuilder) {
modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
base.OnModelCreating(modelBuilder);
}

Answer 5

Make sure your Products table was created with the dbo Schema, a lot of times the schema will be something other than dbo, such as it can be your username or server name (if the account you're working with isnt in the db_owner schema). Open up the DB (since it's SQLExpress) with Server Explorer in Visual Studio)
To do this right click on the table name and select Open Table Definition then inside the table definition right click and select Properties and in the properties window check what is listed in the schema value. If it's not DBO then you should be able to change it to dbo and save it.