获取枚举变量值的 Description 属性

        /// <summary>
        /// 获取枚举变量值的 Description 属性
        /// </summary>
        /// <param name="obj">枚举变量</param>
        /// <param name="isTop">是否改变为返回该类、枚举类型的头 Description 属性,而不是当前的属性或枚举变量值的 Description 属性</param>
        /// <returns>如果包含 Description 属性,则返回 Description 属性的值,否则返回枚举变量值的名称</returns>
        public string GetDescription(object obj)
        {
            bool isTop = false;
            if (obj == null)
            {
                return string.Empty;
            }
            try
            {
                Type _enumType = obj.GetType();
                DescriptionAttribute dna = null;
                if (isTop)
                {
                    dna = (DescriptionAttribute)Attribute.GetCustomAttribute(_enumType, typeof(DescriptionAttribute));
                }
                else
                {
                    FieldInfo fi = _enumType.GetField(Enum.GetName(_enumType, obj));
                    dna = (DescriptionAttribute)Attribute.GetCustomAttribute(
                       fi, typeof(DescriptionAttribute));
                }
                if (dna != null && string.IsNullOrEmpty(dna.Description) == false)
                    return dna.Description;
            }
            catch
            {
            }
            return obj.ToString();
        }
posted @ 2011-05-11 13:50  潇客的技术博客  阅读(3096)  评论(1编辑  收藏  举报