Entity Framework, Connection String throws formatexception - entity-framework

Question

I am Using Entity Framework 6.1.1
I have a class in one project, which include FBuyShopContext, another for models, and one Asp project with MVC 5
In my first project I have following
public class FBuyShopContext : DbContext
{
public FBuyShopContext()
: base("name=FBuyShopContext")
{
}
public virtual DbSet<Product> Admins { get; set; }
}
}
And a Product Model in a other Library project
public class Product
{
public Product()
{}
public int Id { get; set; }
[Required]
public string Name { get; set; }
}
my connection string is following
<connectionStrings>
<add name="FBuyShopContext" connectionString="data source=tschikovani\SQLEXPRESS;initial catalog=OnlineShop;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
and when I want to add a new product into database in my controller
FBuyShopContext db = new FBuyShopContext();
Product new = new Product ();
new.Name = "Iphone";
db.Products.Add(new);
db.SaveChanges();
I have a following exception
An exception of type 'System.ArgumentException' occurred in EntityFramework.dll
keyword not supported: 'data source'.
Why this happened? connection string is fully right

Answer 1

I can see three things going on here:
1) DbContext's contructor should take the name of the connection string, therefore change it to just FBuyShopContext and not name=FBuyShopContext.
public class FBuyShopContext : DbContext
{
public FbuyShopContext() : base("FBuyShopContext") {}
}
2) Your connection string ends with a ", which is an invalid character. You should remove it.
3) You should specify your primary key on the model, either using the fluent API, or by data annotations:
public class Product {
[Key]
public int Id { get; set; }
[Required]
public string Name { get; set; }
}
I'm pretty sure the error you are getting is caused by 2), but 1) and 3) would have caused you problems later.