Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

C# Entity Framework Basics Extending Our Entity Data Model Using the Fluent API

Entity Framework Basics

In Context.cs use the Fluent API in the OnModelCreating method to configure the CourseStudent.Grade property to have a precision of "4" and a scale of "3". This will allow the associated database column to store values between "0.000" and "1.000" (i.e. between 0.0% and 100.0%).

I've been working on this code challenge and I always get an error "Bummer! Did you call the model Builder's Entity method? " .I am not able to find the mistake I'm doing in the code.

Context.cs
using System.Data.Entity;

namespace Treehouse.CodeChallenges
{
    public class Context : DbContext
    {
        public Context()
        {
            Database.SetInitializer(new DropCreateDatabaseAlways<Context>());
        }

        public DbSet<Course> Courses { get; set; }

        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
        //  modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
        // modelBuilder.Conventions.Remove<DecimalPropertyConvention>();
         // modelBuilder.Conventions.Add(new DecimalPropertyConvention(4,3));




          modelBuilder.Entity<CourseStudent>().Property(c => c.Grade).HasPrecision(4,3);




        }
    }
}

1 Answer

I was finally able to fix the error. The code is just fine. All that I had to do is to remove those comments from the code. Hope this helps someone some day :-) .

Yes it helped I was missing a semicolon.