/// <summary>
 /// 获取字段说明符上的说明文本
 /// </summary>
 /// <param name="member"></param>
 /// <returns></returns>
 public static string GetDescription(this FieldInfo field)
 {
     if (Attribute.IsDefined(field, typeof(ResourceDescriptionAttribute)))
     {
         ResourceDescriptionAttribute att = Attribute.GetCustomAttribute(field, typeof(ResourceDescriptionAttribute)) as ResourceDescriptionAttribute;
         return(att.ResourceDescription);
     }
     if (Attribute.IsDefined(field, typeof(DescriptionAttribute)))
     {
         DescriptionAttribute att = Attribute.GetCustomAttribute(field, typeof(DescriptionAttribute)) as DescriptionAttribute;
         return(att.Description);
     }
     return(null);
 }
        /// <summary>
        /// 获取属性说明符上的说明文本
        /// </summary>
        /// <param name="member"></param>
        /// <returns></returns>
        public static string GetDescription(this PropertyDescriptor member)
        {
            ResourceDescriptionAttribute attr = member.Attributes[typeof(ResourceDescriptionAttribute)] as ResourceDescriptionAttribute;

            if (attr != null)
            {
                return(attr.ResourceDescription);
            }
            DescriptionAttribute attr2 = member.Attributes[typeof(DescriptionAttribute)] as DescriptionAttribute;

            if (attr2 != null)
            {
                return(attr2.Description);
            }
            return(null);
        }