- c#中获取时区列表 下面方法获得的仅仅用来显示和使用，无法用来进行时间转换。
1
2 public static List<DisplayTimeZone> GetSystemTimeZones()
3 {
4 List<DisplayTimeZone> list = new List<DisplayTimeZone>();
5
6 PermissionSet set = new PermissionSet(PermissionState.None);
7 set.AddPermission(new RegistryPermission(RegistryPermissionAccess.Read, @"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones"));
8 set.Assert();
9 using (RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones", RegistryKeyPermissionCheck.Default, RegistryRights.ExecuteKey))
10 {
11 if (key != null)
12 {
13 foreach (string str in key.GetSubKeyNames())
14 {
15 DisplayTimeZone timeZone = null;
16 Exception e = null;
17 TryGetTimeZone(str, out timeZone, out e);
18 if (timeZone != null)
19 {
20 list.Add(timeZone);
21 }
22 }
23 }
24 }
25 return list;
26 }
27
28 private static void TryGetTimeZone(string id, out DisplayTimeZone value, out Exception e)
29 {
30 e = null;
31 value = new DisplayTimeZone();
32 try
33 {
34 using (RegistryKey key = Registry.LocalMachine.OpenSubKey(string.Format(CultureInfo.InvariantCulture, @"{0}\{1}", new object[] { @"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones", id }), RegistryKeyPermissionCheck.Default, RegistryRights.ExecuteKey))
35 {
36 value.DisplayName = key.GetValue("Display", string.Empty, RegistryValueOptions.None) as string;
37 value.StandardName = key.GetValue("Std", string.Empty, RegistryValueOptions.None) as string;
38 value.DaylightName = key.GetValue("Dlt", string.Empty, RegistryValueOptions.None) as string;
39 }
40 }
41 catch (Exception ex)
42 {
43 e = ex;
44 value = null;
45 }
46 }
47
48 public class DisplayTimeZone
49 {
50 public string StandardName;
51 public string DisplayName;
52 public string DaylightName;
53 }
