private static WindowsTimeZoneCollection LoadTimeZonesFromXml()
{
WindowsTimeZoneCollection tzs = new WindowsTimeZoneCollection();
XmlSerializer ser = new XmlSerializer(tzs.GetType());
using (StreamReader rs = new StreamReader(tzs.GetType().Assembly.GetManifestResourceStream(tzs.GetType().Namespace + ".WindowsTimeZoneCollection.xml")))
{
tzs = ser.Deserialize(rs) as WindowsTimeZoneCollection;
}
return(tzs);
}
static WindowsTimeZone()
{
RegistryPermission permission = new RegistryPermission(
RegistryPermissionAccess.Read,
"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zones");
try
{
permission.Demand();
timeZones = LoadTimeZonesFromRegistry();
}
catch //(Exception ex) //If we can't get into the Registry for any reason, try the fallback...
{
//SDH: Requires FullTrust
//System.Diagnostics.Debug.WriteLine("Error: LoadTimeZonesFromRegistry " + ex.ToString());
timeZones = LoadTimeZonesFromXml();
}
}
private static WindowsTimeZoneCollection LoadTimeZonesFromRegistry()
{
WindowsTimeZoneCollection tzs = new WindowsTimeZoneCollection();
RegistryKey timeZoneListKey = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zones", false);
string[] timeZoneKeyNames = timeZoneListKey.GetSubKeyNames();
foreach (string timeZoneKeyName in timeZoneKeyNames)
{
RegistryKey timeZoneKey = timeZoneListKey.OpenSubKey(timeZoneKeyName);
WindowsTimeZone windowsTimeZone =
new WindowsTimeZone(
timeZoneKey.GetValue("Display") as string,
timeZoneKey.GetValue("Dlt") as string,
timeZoneKey.GetValue("Std") as string,
(int)timeZoneKey.GetValue("Index"),
timeZoneKey.GetValue("TZI") as byte[]);
tzs.Add(windowsTimeZone);
}
tzs.SortByTimeZoneBias();
return(tzs);
}
public Enumerator(WindowsTimeZoneCollection collection)
{
this.wrapped = ((System.Collections.CollectionBase)collection).GetEnumerator();
}
private static WindowsTimeZoneCollection LoadTimeZonesFromXml()
{
WindowsTimeZoneCollection tzs = new WindowsTimeZoneCollection();
XmlSerializer ser = new XmlSerializer(tzs.GetType());
using (StreamReader rs = new StreamReader(tzs.GetType().Assembly.GetManifestResourceStream(tzs.GetType().Namespace + ".WindowsTimeZoneCollection.xml")))
{
tzs = ser.Deserialize(rs) as WindowsTimeZoneCollection;
}
return tzs;
}
private static WindowsTimeZoneCollection LoadTimeZonesFromRegistry()
{
WindowsTimeZoneCollection tzs = new WindowsTimeZoneCollection();
RegistryKey timeZoneListKey = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zones", false);
string[] timeZoneKeyNames = timeZoneListKey.GetSubKeyNames();
foreach (string timeZoneKeyName in timeZoneKeyNames)
{
RegistryKey timeZoneKey = timeZoneListKey.OpenSubKey(timeZoneKeyName);
WindowsTimeZone windowsTimeZone =
new WindowsTimeZone(
timeZoneKey.GetValue("Display") as string,
timeZoneKey.GetValue("Dlt") as string,
timeZoneKey.GetValue("Std") as string,
(int)timeZoneKey.GetValue("Index" ),
timeZoneKey.GetValue("TZI") as byte[] );
tzs.Add( windowsTimeZone );
}
tzs.SortByTimeZoneBias();
return tzs;
}
static WindowsTimeZone()
{
RegistryPermission permission = new RegistryPermission(
RegistryPermissionAccess.Read,
"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zones");
try
{
permission.Demand();
timeZones = LoadTimeZonesFromRegistry();
}
catch //(Exception ex) //If we can't get into the Registry for any reason, try the fallback...
{
//SDH: Requires FullTrust
//System.Diagnostics.Debug.WriteLine("Error: LoadTimeZonesFromRegistry " + ex.ToString());
timeZones = LoadTimeZonesFromXml();
}
}
