. Net c # obtain the enumerated value set and its attributes,

. Net c # obtain the enumerated value set and its attributes,

Problem description:

As shown in, the position of the article is an enumeration value, which generates a drop-down box on the right.

 

Finally select a solution:

You can use the following method to generate a dictionary for the required enumeration Attribute before using it.

 public static Dictionary<int, string> EnumToDictionary<T>()        {            Dictionary<int, string> dic = new Dictionary<int, string>();            if (!typeof(T).IsEnum)            {                return dic;            }            string desc = string.Empty;            foreach (var item in Enum.GetValues(typeof(T)))            {                var attrs = item.GetType().GetField(item.ToString()).GetCustomAttributes(typeof(DescriptionAttribute), true);                if (attrs != null && attrs.Length > 0)                {                    DescriptionAttribute descAttr = attrs[0] as DescriptionAttribute;                    desc = descAttr.Description;                }                dic.Add(Convert.ToInt32(item), desc);            }            return dic;        }

My use cases:

 

Abandoned solution:

  public static List<T> EnumToList<T>()        {            List<T> list = new List<T>();            foreach (var item in Enum.GetValues(typeof(T)))            {                list.Add((T)item);            }            return list;        }

The result of this scheme is as follows:

Apparently it does not meet the project requirements, so it is discarded.

Finally, I attached a common method to obtain the descriptive feature information of enumeration values:

       public static string GetDescription(this Enum obj)        {            return GetDescription(obj, false);        }        private static string GetDescription(this Enum obj, bool isTop)        {            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 string.Empty;            }            return obj.ToString();        }

This method is used in the following scenarios: directly calling Enumeration type values --> because it is an enumeration extension method!

PS: If you have any of the above errors, I hope you can give me some advice. If you have any better methods to achieve this, I hope you can leave a message and discuss and learn from each other.

[Reference] http://blog.csdn.net/razorluo/article/details/42707331