C# 从枚举值获取对应的文本描述详解

#region YesNoEnum 
 public enum YesNoEnum 
 { 
   [Description("是")] 
   Yes, 
   [Description("否")] 
   No 
 } 
 #endregion 

public static class EnumUtil 
 { 
   #region FetchDescription 
   /// <summary> 
   /// 获取枚举值的描述文本 
   /// </summary> 
   /// <param name="value"></param> 
   /// <returns></returns> 
   public static string FetchDescription(this Enum value) 
   { 
     FieldInfo fi = value.GetType().GetField(value.ToString()); 
     DescriptionAttribute[] attributes = 
        (DescriptionAttribute[])fi.GetCustomAttributes( 
        typeof(DescriptionAttribute), false); 
     return (attributes.Length > 0) ? attributes[0].Description : value.ToString(); 
   } 
   #endregion 
 } 

YesNoEnum yesNoEnum = YesNoEnum.Yes; 
 string description = yesNoEnum.FetchDescription(); 
 Console.WriteLine(description);