Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Posted by Marcus Stigall
Marcus Stigall
13,252 Points

need help

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%).

Bummer! Did you call the model builder's 'Entity' method?

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);




        }
    }
}

2 Answers

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

It looks like you completed the task requirements with your last line, but you have several other new lines before it that are not part of the task instructions.

Just remove the extra code and you should pass the challenge.

Marcus Stigall
Marcus Stigall
13,252 Points
Marcus Stigall
Marcus Stigall
13,252 Points

thanks so much