Oracle ODP.Net和EF CodeFirst - edm.decimal错误

时间:2012-04-10 18:44:21

标签: entity-framework ef-code-first odp.net dbcontext entity-framework-4.3

我有以下简单的实体:

public class Something{
    [DatabaseGenerated(DatabaseGeneratedOption.Computed)]
    public int ID { get; set; }
    public string NAME { get; set; }
    public int STATUS { get; set; }
}

如您所见,我不希望ID是从数据库生成的,但我要手动输入。这是我的DbContext类:

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);
    }
}

这里没什么特别的。但是这段代码失败了:

            using (MyCEContext ctx = new MyCEContext()) {
                Something t = new Something();
                t.ID= 1;
                t.NAME = "TEST";
                t.STATUS = 100;

                ctx.Somethings.Add(t);
                ctx.SaveChanges();
            }

这是错误:

指定的值不是&#39; Edm.Decimal&#39;

类型的实例

通常,总是EF尝试将值发送到int主键字段,我得到edm.decimal错误。

任何帮助?

1 个答案:

答案 0 :(得分:4)

正如我对之前的回答所评论的那样,我找到了更好的解决方案,这很奇怪,但它确实有效

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");
        }

和TestEntity看起来像这样

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; }
    }