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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.

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.