c# Enum获取name,value和description

public enum EnumTest
{
[Description("Attribute")]
Attribute1 = 1,
[Description("Attribute")]
Attribute2 = 2,
[Description("Measure")]
Measure1 = 3,
[Description("Measure")]
Measure2 = 4
}

/// <summary>
/// get all information of enum,include value,name and description
/// </summary>
/// <param name="enumName">the type of enumName</param>
/// <returns></returns>
public static List<dynamic> GetAllItems(this Type enumName)
{
List<dynamic> list = new List<dynamic>();
// get enum fileds
FieldInfo[] fields = enumName.GetFields();
foreach (FieldInfo field in fields)
{
if (!field.FieldType.IsEnum)
{
continue;
}
// get enum value
int value = (int)enumName.InvokeMember(field.Name, BindingFlags.GetField, null, null, null);
string text = field.Name;
string description = string.Empty;
object[] array = field.GetCustomAttributes(typeof(DescriptionAttribute), false);
if (array.Length > 0)
{
description = ((DescriptionAttribute)array[0]).Description;
}
else
{
description = ""; //none description,set empty
}
//add to list
dynamic obj = new ExpandoObject();
obj.Value = value;
obj.Text = text;
obj.Description = description;
list.Add(obj);
}
return list;
}

/// <summary>
/// get enum description by name
/// </summary>
/// <typeparam name="T">enum type</typeparam>
/// <param name="enumItemName">the enum name</param>
/// <returns></returns>
public static string GetDescriptionByName<T>(this T enumItemName)
{
FieldInfo fi = enumItemName.GetType().GetField(enumItemName.ToString());

DescriptionAttribute[] attributes = (DescriptionAttribute[])fi.GetCustomAttributes(
typeof(DescriptionAttribute), false);

if (attributes != null && attributes.Length > 0)
{
return attributes[0].Description;
}
else
{
return enumItemName.ToString();
}
}