枚举工具

 1 public static partial class Extensions
 2 {
 3     #region 枚举成员转成dictionary类型
 4     /// <summary>
 5     /// 转成dictionary类型
 6     /// </summary>
 7     /// <param name="enumType"></param>
 8     /// <returns></returns>
 9     public static Dictionary<int, string> EnumToDictionary(this Type enumType)
10     {
11         Dictionary<int, string> dictionary = new Dictionary<int, string>();
12         Type typeDescription = typeof(DescriptionAttribute);
13         FieldInfo[] fields = enumType.GetFields();
14         int sValue = 0;
15         string sText = string.Empty;
16         foreach (FieldInfo field in fields)
17         {
18             if (field.FieldType.IsEnum)
19             {
20                 sValue = ((int)enumType.InvokeMember(field.Name, BindingFlags.GetField, null, null, null));
21                 object[] arr = field.GetCustomAttributes(typeDescription, true);
22                 if (arr.Length > 0)
23                 {
24                     DescriptionAttribute da = (DescriptionAttribute)arr[0];
25                     sText = da.Description;
26                 }
27                 else
28                 {
29                     sText = field.Name;
30                 }
31                 dictionary.Add(sValue, sText);
32             }
33         }
34         return dictionary;
35     }
36     /// <summary>
37     /// 枚举成员转成键值对Json字符串
38     /// </summary>
39     /// <param name="enumType"></param>
40     /// <returns></returns>
41     //public static string EnumToDictionaryString(this Type enumType)
42     //{
43     //    List<KeyValuePair<int, string>> dictionaryList = EnumToDictionary(enumType).ToList();
44     //    var sJson = JsonConvert.SerializeObject(dictionaryList);
45     //    return sJson;
46     //}
47     #endregion
48 
49     #region 获取枚举的描述
50     /// <summary>
51     /// 获取枚举值对应的描述
52     /// </summary>
53     /// <param name="enumType"></param>
54     /// <returns></returns>
55     public static string GetDescription(this System.Enum enumType)
56     {
57         FieldInfo EnumInfo = enumType.GetType().GetField(enumType.ToString());
58         if (EnumInfo != null)
59         {
60             DescriptionAttribute[] EnumAttributes = (DescriptionAttribute[])EnumInfo.GetCustomAttributes(typeof(DescriptionAttribute), false);
61             if (EnumAttributes.Length > 0)
62             {
63                 return EnumAttributes[0].Description;
64             }
65         }
66         return enumType.ToString();
67     }
68     #endregion
69 
70     #region 根据值获取枚举的描述
71     public static string GetDescriptionByEnum<T>(this object obj)
72     {
73         var tEnum = System.Enum.Parse(typeof(T), obj.ParseToString()) as System.Enum;
74         var description = tEnum.GetDescription();
75         return description;
76     }
77     #endregion
78 }