Oracle ODP.Net and EF CodeFirst - edm.decimal error - entity-framework

Question

I have the following simple entity:
public class Something{
[DatabaseGenerated(DatabaseGeneratedOption.Computed)]
public int ID { get; set; }
public string NAME { get; set; }
public int STATUS { get; set; }
}
As you can see, I do not want the ID is generated from the database but I'm going to enter manually. This my DbContext class:
public class MyCEContext : DbContext {
...
public DbSet<Something> Somethings { get; set; }
protected override void OnModelCreating(DbModelBuilder modelBuilder) {
string dbsch = "myce";
modelBuilder.Entity<Something>().ToTable("SOMETHING", dbsch);
}
}
There is nothing special here. But this code fails:
using (MyCEContext ctx = new MyCEContext()) {
Something t = new Something();
t.ID= 1;
t.NAME = "TEST";
t.STATUS = 100;
ctx.Somethings.Add(t);
ctx.SaveChanges();
}
This is the error:
The specified value is not an instance of type 'Edm.Decimal'
In general, allways EF try to send a value to an int primary key field, I get the edm.decimal error.
Any help?

Answer 1

As I commented on previous answer, I've found better solution, it is strange, but it works
protected override void OnModelCreating(System.Data.Entity.DbModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
modelBuilder.Entity<TestEntity>().ToTable("TESTENTITY", "SCHEMENAME");
modelBuilder.Entity<TestEntity>().Property(p => p.Id).HasColumnName("ID").HasColumnType("INT");
modelBuilder.Entity<TestEntity>().Property(p => p.TestDateTime).HasColumnName("TESTDATETIME");
modelBuilder.Entity<TestEntity>().Property(p => p.TestFloat).HasColumnName("TESTFLOAT");
modelBuilder.Entity<TestEntity>().Property(p => p.TestInt).HasColumnName("TESTINT");
modelBuilder.Entity<TestEntity>().Property(p => p.TestString).HasColumnName("TESTSTRING");
}
and TestEntity looks like this
public class TestEntity
{
public int Id{ get; set; }
public string TestString { get; set; }
public int TestInt { get; set; }
public float TestFloat { get; set; }
public DateTime TestDateTime { get; set; }
}