设计一个Enum Class

最近项目中需要将一个枚举类型设计成为一个对应的类，设计结果如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace CompanyName.ProductName.Model.Agency
{
    /// <summary>
    /// 区域,Design as an Enum Class
    /// </summary>
    [Serializable]
    public class LocationInfo
    { 
        /// <summary>
        /// 区域：本地
        /// </summary>
        public static readonly LocationInfo Local = new LocationInfo("本地");

        /// <summary>
        /// 区域：外埠
        /// </summary>
        public static readonly LocationInfo Other = new LocationInfo("外埠");

        /// <summary>
        /// 私有区域名称字段
        /// </summary>
        private string locationTypeName;

        /// <summary>
        /// Initializes a new instance of the <see cref="LocationInfo"/> class.
        /// 私有构造函数保证Enum值域的封闭性
        /// </summary>
        /// <param name="typeName">Name of the type.</param>
        private LocationInfo(string typeName)
        {
            this.locationTypeName = typeName;
        }

        /// <summary>
        /// 根据一个符合指定格式的字符串返回类型实例。
        /// </summary>
        /// <param name="typeName">Name of the type.</param>
        /// <returns>LocationInfo</returns>
        public static LocationInfo Parse(string typeName)
        {
            switch (typeName.Trim())
            {
                case "Local": 
                case "本地":
                    return Local;
                case "Other":
                case "外埠":
                    return Other;
                default:
                    return Other;
            }
        }

        /// <summary>
        /// 根据一个符合指定格式的整数返回类型实例
        /// </summary>
        /// <param name="typeId">The type id.</param>
        /// <returns>LocationInfo</returns>
        public static LocationInfo Parse(int typeId)
        {
            switch (typeId)
            {
                case 0:
                    return Local;
                case 1:
                    return Other;
                default:
                    return Other;
            }
        }

        /// <summary>
        /// 将Enum Class 转换成存入数据库中的整数值
        /// </summary>
        /// <returns>ToDBValue</returns>
        public int ToDBValue()
        {
            return (this.locationTypeName == "本地") ? 0 : 1;
        }

        /// <summary>
        /// 提供重载的"=="操作符，使用locationTypeName来判断是否是相同的LocationInfo类型 
        /// </summary>
        /// <param name="li1">The li1.</param>
        /// <param name="li2">The li2.</param>
        /// <returns>The result of the operator.</returns>
        public static bool operator ==(LocationInfo li1, LocationInfo li2)
        {
            if (Object.Equals(li1, null))
            {
                return Object.Equals(li2, null);
            }

            return li1.Equals(li2);
        }

        /// <summary>
        /// Implements the operator !=.
        /// </summary>
        /// <param name="li1">The li1.</param>
        /// <param name="li2">The li2.</param>
        /// <returns>The result of the operator.</returns>
        public static bool operator !=(LocationInfo li1, LocationInfo li2)
        {
            return !(li1 == li2);
        }

        /// <summary>
        /// Determines whether the specified <see cref="System.Object"/> is equal to this instance.
        /// </summary>
        /// <param name="obj">The <see cref="System.Object"/> to compare with this instance.</param>
        /// <returns>
        ///     <c>true</c> if the specified <see cref="System.Object"/> is equal to this instance; otherwise, <c>false</c>.
        /// </returns>
        /// <exception cref="T:System.NullReferenceException">
        /// The <paramref name="obj"/> parameter is null.
        /// </exception>
        public override bool Equals(object obj)
        {
            LocationInfo li = obj as LocationInfo;
            if (obj == null)
            {
                return false;
            }

            return this.locationTypeName == li.locationTypeName;
        }

        /// <summary>
        /// Returns a hash code for this instance.
        /// </summary>
        /// <returns>
        /// A hash code for this instance, suitable for use in hashing algorithms and data structures like a hash table. 
        /// </returns>
        public override int GetHashCode()
        {
            //return this.locationTypeName.GetHashCode();
            return this.ToDBValue();
        }

        /// <summary>
        /// Returns a <see cref="System.String"/> that represents this instance.
        /// </summary>
        /// <returns>
        /// A <see cref="System.String"/> that represents this instance.
        /// </returns>
        public override string ToString()
        {
            return this.locationTypeName;
        }
    }
}