利用泛型，把DataReader转换为List的，怎么报错

Question

我用vs2005的，下面的代码是把DataReader转换为List的，但是编译时提示：
The type or namespace name 'BindingFieldAttribute' could not be found (are you missing a using directive or an assembly reference?)
怎么会出这个错误呢？public static IList<T> FillList<T>(System.Data.IDataReader reader)
    {
        IList<T> lst = new List<T>();
        while (reader.Read())
        {
            T RowInstance = Activator.CreateInstance<T>();
            foreach (PropertyInfo Property in typeof(T).GetProperties())
            {
                foreach (BindingFieldAttribute FieldAttr in Property.GetCustomAttributes(typeof(BindingFieldAttribute), true))
                {
                    try
                    {
                        int Ordinal = reader.GetOrdinal(FieldAttr.FieldName);
                        if (reader.GetValue(Ordinal) != DBNull.Value)
                        {
                            Property.SetValue(RowInstance, Convert.ChangeType(reader.GetValue(Ordinal), Property.PropertyType), null);
                        }
                    }
                    catch
                    {
                        break;
                    }
                }
            }
            lst.Add(RowInstance);
        }
        return lst;
    }

Answer 1

public static IList<T> FillDataListGeneric<T>(System.Data.IDataReader reader) where T : Kchen.Core.BaseBusinessObject
        {
            //实例化一个List<>泛型集合
            IList<T> DataList = new List<T>();
            while (reader.Read())
            {
                //由于是是未知的类型,所以必须通过Activator.CreateInstance<T>()方法来依据T的类型动态创建数据实体对象
                T RowInstance = Activator.CreateInstance<T>();
                //通过反射取得对象所有的Property
                foreach (PropertyInfo Property in typeof(T).GetProperties())
                {
                    //BindingFieldAttribute为自定义的Attribute,用于与数据库字段进行绑定
                    foreach (BindingFieldAttribute FieldAttr in Property.GetCustomAttributes(typeof(BindingFieldAttribute), true))
                    {
                        try
                        {
                            //取得当前数据库字段的顺序
                            int Ordinal = reader.GetOrdinal(FieldAttr.FieldName);
                            if (reader.GetValue(Ordinal) != DBNull.Value)
                            {
                                //将DataReader读取出来的数据填充到对象实体的属性里
                                Property.SetValue(RowInstance, Convert.ChangeType(reader.GetValue(Ordinal), Property.PropertyType), null);
                            }
                        }
                        catch
                        {
                            break;
                        }
                    }
                }
                //将数据实体对象add到泛型集合中
                DataList.Add(RowInstance);
            }
            return DataList;
        }