C# 3.5 OrderBy with TimeZoneInfo.Ge tSystemTimeZone s()

24 New Member

Guys!

How to use OrderBy with TimeZoneInfo.Ge tSystemTimeZone s() in C# 3.5 (vide Code snippet 1)?

However, I got it in VB.NET 9 (vide Code snippet 2)!

Code snippet 1:

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using System;
 
using System.Collections.Generic;
 
using System.Linq;
 
using System.Text;
 
using System.Collections.ObjectModel;
 
class Mainclass
 
{
 
static void Main(string[] args) 

{
 
ReadOnlyCollection<TimeZoneInfo> timeZones = TimeZoneInfo.GetSystemTimeZones(); 
 
//OrderBy(Func<TimeZoneInfo zone> zone.BaseUtcOffset.TotalHours); //???
 
foreach (TimeZoneInfo timeZone in timeZones) 

{ 
 
Console.Write("Offset: {0}", timeZone.BaseUtcOffset.TotalHours); 
 
Console.Write(" "); 

Console.Write("Now: {0}", TimeZoneInfo.ConvertTime(DateTime.Now, timeZone).ToString("t"));
 
Console.Write(" "); Console.WriteLine(timeZone.DisplayName); 

} 
 
Console.ReadLine(); 

}
 
}

Code snippet 2:

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Class MainClass 

Public Shared Sub Main()
 
Dim Zones = TimeZoneInfo.GetSystemTimeZones().OrderBy(Function(zone As TimeZoneInfo) zone.BaseUtcOffset.TotalHours) 

For Each zone In Zones
 
Console.Write("Offset: {0}", zone.BaseUtcOffset.TotalHours) 

Console.Write(ControlChars.Tab)
 
Console.Write("Now: {0}", TimeZoneInfo.ConvertTime(DateTime.Now, zone).ToString("t")) 

Console.Write(ControlChars.Tab)
 
Console.WriteLine(zone.DisplayName)
 
Next
 
Console.ReadLine()
 
End Sub 

End Class

Thanks

Jul 29 '08 #1

Subscribe Reply

5514

r035198x

13,262

MVP

What do you want to order them by? The GetSystemTimeZo nes() methods already returns a sorted collection.

Jul 29 '08 #2

qwedster

New Member

What do you want to order them by? The GetSystemTimeZo nes() methods already returns a sorted collection.

Thanks for the reply!

I want to the TimeZones in the Order of of BaseUtcOffset (as I haved stated in the VB.NET 9 code - Code snippet 2).

I am not sure about the corresponding C# 3.5 code, which I guess should be something like,

TimeZoneInfo.Ge tSystemTimeZone s().OrderBy(Fun c<TimeZoneInfo zone> zone.BaseUtcOff set.TotalHours) ; //???

Jul 29 '08 #3

r035198x

13,262

MVP

Well they already are sorted by that.
Run

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 foreach(TimeZoneInfo info in TimeZoneInfo.GetSystemTimeZones()) {

      Console.WriteLine(info.BaseUtcOffset);

}

and check it out.

Jul 29 '08 #4

qwedster

New Member

Well they already are sorted by that.
Run

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foreach(TimeZoneInfo info in TimeZoneInfo.GetSystemTimeZones()) {

Console.WriteLine(info.BaseUtcOffset);

}

and check it out.

I want the following OUTPUT (as generated by my VB.NET 9 code - Code Snippet 2), please check the order:

Offset: -12 Now: 1:48 AM (GMT-12:00) International Date Line West
Offset: -11 Now: 2:48 AM (GMT-11:00) Midway Island, Samoa
Offset: -10 Now: 3:48 AM (GMT-10:00) Hawaii
Offset: -9 Now: 5:48 AM (GMT-09:00) Alaska
Offset: -8 Now: 6:48 AM (GMT-08:00) Pacific Time (US & Canada)
Offset: -8 Now: 6:48 AM (GMT-08:00) Tijuana, Baja California
Offset: -7 Now: 6:48 AM (GMT-07:00) Arizona
Offset: -7 Now: 7:48 AM (GMT-07:00) Chihuahua, La Paz, Mazatlan - New
Offset: -7 Now: 7:48 AM (GMT-07:00) Chihuahua, La Paz, Mazatlan - Old
Offset: -7 Now: 7:48 AM (GMT-07:00) Mountain Time (US & Canada)
Offset: -6 Now: 7:48 AM (GMT-06:00) Central America
Offset: -6 Now: 8:48 AM (GMT-06:00) Central Time (US & Canada)
Offset: -6 Now: 8:48 AM (GMT-06:00) Guadalajara, Mexico City, Monterrey
- New
Offset: -6 Now: 8:48 AM (GMT-06:00) Guadalajara, Mexico City, Monterrey
- Old
Offset: -6 Now: 7:48 AM (GMT-06:00) Saskatchewan
Offset: -5 Now: 8:48 AM (GMT-05:00) Bogota, Lima, Quito, Rio Branco
Offset: -5 Now: 9:48 AM (GMT-05:00) Eastern Time (US & Canada)
Offset: -5 Now: 8:48 AM (GMT-05:00) Indiana (East)
Offset: -4.5 Now: 9:18 AM (GMT-04:30) Caracas
Offset: -4 Now: 10:48 AM (GMT-04:00) Atlantic Time (Canada)
Offset: -4 Now: 9:48 AM (GMT-04:00) La Paz
Offset: -4 Now: 9:48 AM (GMT-04:00) Manaus
Offset: -4 Now: 9:48 AM (GMT-04:00) Santiago
Offset: -3.5 Now: 11:18 AM (GMT-03:30) Newfoundland
Offset: -3 Now: 10:48 AM (GMT-03:00) Brasilia
Offset: -3 Now: 10:48 AM (GMT-03:00) Buenos Aires, Georgetown
Offset: -3 Now: 11:48 AM (GMT-03:00) Greenland
Offset: -3 Now: 10:48 AM (GMT-03:00) Montevideo
Offset: -2 Now: 12:48 PM (GMT-02:00) Mid-Atlantic
Offset: -1 Now: 1:48 PM (GMT-01:00) Azores
Offset: -1 Now: 12:48 PM (GMT-01:00) Cape Verde Is.
Offset: 0 Now: 1:48 PM (GMT) Casablanca, Monrovia, Reykjavik
Offset: 0 Now: 2:48 PM (GMT) Greenwich Mean Time : Dublin, Edinburgh, L
isbon, London
Offset: 1 Now: 3:48 PM (GMT+01:00) Amsterdam, Berlin, Bern, Rome, Stock
holm, Vienna
Offset: 1 Now: 3:48 PM (GMT+01:00) Belgrade, Bratislava, Budapest, Ljub
ljana, Prague
Offset: 1 Now: 3:48 PM (GMT+01:00) Brussels, Copenhagen, Madrid, Paris
Offset: 1 Now: 3:48 PM (GMT+01:00) Sarajevo, Skopje, Warsaw, Zagreb
Offset: 1 Now: 2:48 PM (GMT+01:00) West Central Africa
Offset: 2 Now: 4:48 PM (GMT+02:00) Amman
Offset: 2 Now: 4:48 PM (GMT+02:00) Athens, Bucharest, Istanbul
Offset: 2 Now: 4:48 PM (GMT+02:00) Beirut
Offset: 2 Now: 4:48 PM (GMT+02:00) Cairo
Offset: 2 Now: 3:48 PM (GMT+02:00) Harare, Pretoria
Offset: 2 Now: 4:48 PM (GMT+02:00) Helsinki, Kyiv, Riga, Sofia, Tallinn
, Vilnius
Offset: 2 Now: 4:48 PM (GMT+02:00) Jerusalem
Offset: 2 Now: 4:48 PM (GMT+02:00) Minsk
Offset: 2 Now: 2:48 PM (GMT+02:00) Windhoek
Offset: 3 Now: 5:48 PM (GMT+03:00) Baghdad
Offset: 3 Now: 4:48 PM (GMT+03:00) Kuwait, Riyadh
Offset: 3 Now: 5:48 PM (GMT+03:00) Moscow, St. Petersburg, Volgograd
Offset: 3 Now: 4:48 PM (GMT+03:00) Nairobi
Offset: 3 Now: 4:48 PM (GMT+03:00) Tbilisi
Offset: 3.5 Now: 5:18 PM (GMT+03:30) Tehran
Offset: 4 Now: 5:48 PM (GMT+04:00) Abu Dhabi, Muscat
Offset: 4 Now: 6:48 PM (GMT+04:00) Baku
Offset: 4 Now: 5:48 PM (GMT+04:00) Caucasus Standard Time
Offset: 4 Now: 6:48 PM (GMT+04:00) Yerevan
Offset: 4.5 Now: 6:18 PM (GMT+04:30) Kabul
Offset: 5 Now: 7:48 PM (GMT+05:00) Ekaterinburg
Offset: 5 Now: 6:48 PM (GMT+05:00) Islamabad, Karachi, Tashkent
Offset: 5.5 Now: 7:18 PM (GMT+05:30) Chennai, Kolkata, Mumbai, New Delhi
Offset: 5.5 Now: 7:18 PM (GMT+05:30) Sri Jayawardenepura
Offset: 5.75 Now: 7:33 PM (GMT+05:45) Kathmandu
Offset: 6 Now: 8:48 PM (GMT+06:00) Almaty, Novosibirsk
Offset: 6 Now: 7:48 PM (GMT+06:00) Astana, Dhaka
Offset: 6.5 Now: 8:18 PM (GMT+06:30) Yangon (Rangoon)
Offset: 7 Now: 8:48 PM (GMT+07:00) Bangkok, Hanoi, Jakarta
Offset: 7 Now: 9:48 PM (GMT+07:00) Krasnoyarsk
Offset: 8 Now: 9:48 PM (GMT+08:00) Beijing, Chongqing, Hong Kong, Urumq
i
Offset: 8 Now: 10:48 PM (GMT+08:00) Irkutsk, Ulaan Bataar
Offset: 8 Now: 9:48 PM (GMT+08:00) Kuala Lumpur, Singapore
Offset: 8 Now: 9:48 PM (GMT+08:00) Perth
Offset: 8 Now: 9:48 PM (GMT+08:00) Taipei
Offset: 9 Now: 10:48 PM (GMT+09:00) Osaka, Sapporo, Tokyo
Offset: 9 Now: 10:48 PM (GMT+09:00) Seoul
Offset: 9 Now: 11:48 PM (GMT+09:00) Yakutsk
Offset: 9.5 Now: 11:18 PM (GMT+09:30) Adelaide
Offset: 9.5 Now: 11:18 PM (GMT+09:30) Darwin
Offset: 10 Now: 11:48 PM (GMT+10:00) Brisbane
Offset: 10 Now: 11:48 PM (GMT+10:00) Canberra, Melbourne, Sydney
Offset: 10 Now: 11:48 PM (GMT+10:00) Guam, Port Moresby
Offset: 10 Now: 11:48 PM (GMT+10:00) Hobart
Offset: 10 Now: 12:48 AM (GMT+10:00) Vladivostok
Offset: 11 Now: 12:48 AM (GMT+11:00) Magadan, Solomon Is., New Caledonia
Offset: 12 Now: 1:48 AM (GMT+12:00) Auckland, Wellington
Offset: 12 Now: 1:48 AM (GMT+12:00) Fiji, Kamchatka, Marshall Is.
Offset: 13 Now: 2:48 AM (GMT+13:00) Nuku'alofa

And I don't want the order generated by my C# 3.5 (Code Snippet 2) which is as follows:

Offset: 0 Now: 1:53 PM (GMT) Casablanca, Monrovia, Reykjavik
Offset: 0 Now: 2:53 PM (GMT) Greenwich Mean Time : Dublin, Edinburgh, Lisbon, Lo
ndon
Offset: 1 Now: 3:53 PM (GMT+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vie
nna
Offset: 1 Now: 3:53 PM (GMT+01:00) Belgrade, Bratislava, Budapest, Ljubljana, Pr
ague
Offset: 1 Now: 3:53 PM (GMT+01:00) Brussels, Copenhagen, Madrid, Paris
Offset: 1 Now: 3:53 PM (GMT+01:00) Sarajevo, Skopje, Warsaw, Zagreb
Offset: 1 Now: 2:53 PM (GMT+01:00) West Central Africa
Offset: 2 Now: 4:53 PM (GMT+02:00) Amman
Offset: 2 Now: 4:53 PM (GMT+02:00) Athens, Bucharest, Istanbul
Offset: 2 Now: 4:53 PM (GMT+02:00) Beirut
Offset: 2 Now: 4:53 PM (GMT+02:00) Cairo
Offset: 2 Now: 3:53 PM (GMT+02:00) Harare, Pretoria
Offset: 2 Now: 4:53 PM (GMT+02:00) Helsinki, Kyiv, Riga, Sofia, Tallinn, Vilnius

Offset: 2 Now: 4:53 PM (GMT+02:00) Jerusalem
Offset: 2 Now: 4:53 PM (GMT+02:00) Minsk
Offset: 2 Now: 2:53 PM (GMT+02:00) Windhoek
Offset: 3 Now: 5:53 PM (GMT+03:00) Baghdad
Offset: 3 Now: 4:53 PM (GMT+03:00) Kuwait, Riyadh
Offset: 3 Now: 5:53 PM (GMT+03:00) Moscow, St. Petersburg, Volgograd
Offset: 3 Now: 4:53 PM (GMT+03:00) Nairobi
Offset: 3 Now: 4:53 PM (GMT+03:00) Tbilisi
Offset: 3.5 Now: 5:23 PM (GMT+03:30) Tehran
Offset: 4 Now: 5:53 PM (GMT+04:00) Abu Dhabi, Muscat
Offset: 4 Now: 6:53 PM (GMT+04:00) Baku
Offset: 4 Now: 5:53 PM (GMT+04:00) Caucasus Standard Time
Offset: 4 Now: 6:53 PM (GMT+04:00) Yerevan
Offset: 4.5 Now: 6:23 PM (GMT+04:30) Kabul
Offset: 5 Now: 7:53 PM (GMT+05:00) Ekaterinburg
Offset: 5 Now: 6:53 PM (GMT+05:00) Islamabad, Karachi, Tashkent
Offset: 5.5 Now: 7:23 PM (GMT+05:30) Chennai, Kolkata, Mumbai, New Delhi
Offset: 5.5 Now: 7:23 PM (GMT+05:30) Sri Jayawardenepura
Offset: 5.75 Now: 7:38 PM (GMT+05:45) Kathmandu
Offset: 6 Now: 8:53 PM (GMT+06:00) Almaty, Novosibirsk
Offset: 6 Now: 7:53 PM (GMT+06:00) Astana, Dhaka
Offset: 6.5 Now: 8:23 PM (GMT+06:30) Yangon (Rangoon)
Offset: 7 Now: 8:53 PM (GMT+07:00) Bangkok, Hanoi, Jakarta
Offset: 7 Now: 9:53 PM (GMT+07:00) Krasnoyarsk
Offset: 8 Now: 9:53 PM (GMT+08:00) Beijing, Chongqing, Hong Kong, Urumqi
Offset: 8 Now: 10:53 PM (GMT+08:00) Irkutsk, Ulaan Bataar
Offset: 8 Now: 9:53 PM (GMT+08:00) Kuala Lumpur, Singapore
Offset: 8 Now: 9:53 PM (GMT+08:00) Perth
Offset: 8 Now: 9:53 PM (GMT+08:00) Taipei
Offset: 9 Now: 10:53 PM (GMT+09:00) Osaka, Sapporo, Tokyo
Offset: 9 Now: 10:53 PM (GMT+09:00) Seoul
Offset: 9 Now: 11:53 PM (GMT+09:00) Yakutsk
Offset: 9.5 Now: 11:23 PM (GMT+09:30) Adelaide
Offset: 9.5 Now: 11:23 PM (GMT+09:30) Darwin
Offset: 10 Now: 11:53 PM (GMT+10:00) Brisbane
Offset: 10 Now: 11:53 PM (GMT+10:00) Canberra, Melbourne, Sydney
Offset: 10 Now: 11:53 PM (GMT+10:00) Guam, Port Moresby
Offset: 10 Now: 11:53 PM (GMT+10:00) Hobart
Offset: 10 Now: 12:53 AM (GMT+10:00) Vladivostok
Offset: 11 Now: 12:53 AM (GMT+11:00) Magadan, Solomon Is., New Caledonia
Offset: 12 Now: 1:53 AM (GMT+12:00) Auckland, Wellington
Offset: 12 Now: 1:53 AM (GMT+12:00) Fiji, Kamchatka, Marshall Is.
Offset: 13 Now: 2:53 AM (GMT+13:00) Nuku'alofa
Offset: -1 Now: 1:53 PM (GMT-01:00) Azores
Offset: -1 Now: 12:53 PM (GMT-01:00) Cape Verde Is.
Offset: -2 Now: 12:53 PM (GMT-02:00) Mid-Atlantic
Offset: -3 Now: 10:53 AM (GMT-03:00) Brasilia
Offset: -3 Now: 10:53 AM (GMT-03:00) Buenos Aires, Georgetown
Offset: -3 Now: 11:53 AM (GMT-03:00) Greenland
Offset: -3 Now: 10:53 AM (GMT-03:00) Montevideo
Offset: -3.5 Now: 11:23 AM (GMT-03:30) Newfoundland
Offset: -4 Now: 10:53 AM (GMT-04:00) Atlantic Time (Canada)
Offset: -4 Now: 9:53 AM (GMT-04:00) La Paz
Offset: -4 Now: 9:53 AM (GMT-04:00) Manaus
Offset: -4 Now: 9:53 AM (GMT-04:00) Santiago
Offset: -4.5 Now: 9:23 AM (GMT-04:30) Caracas
Offset: -5 Now: 8:53 AM (GMT-05:00) Bogota, Lima, Quito, Rio Branco
Offset: -5 Now: 9:53 AM (GMT-05:00) Eastern Time (US & Canada)
Offset: -5 Now: 8:53 AM (GMT-05:00) Indiana (East)
Offset: -6 Now: 7:53 AM (GMT-06:00) Central America
Offset: -6 Now: 8:53 AM (GMT-06:00) Central Time (US & Canada)
Offset: -6 Now: 8:53 AM (GMT-06:00) Guadalajara, Mexico City, Monterrey - New
Offset: -6 Now: 8:53 AM (GMT-06:00) Guadalajara, Mexico City, Monterrey - Old
Offset: -6 Now: 7:53 AM (GMT-06:00) Saskatchewan
Offset: -7 Now: 6:53 AM (GMT-07:00) Arizona
Offset: -7 Now: 7:53 AM (GMT-07:00) Chihuahua, La Paz, Mazatlan - New
Offset: -7 Now: 7:53 AM (GMT-07:00) Chihuahua, La Paz, Mazatlan - Old
Offset: -7 Now: 7:53 AM (GMT-07:00) Mountain Time (US & Canada)
Offset: -8 Now: 6:53 AM (GMT-08:00) Pacific Time (US & Canada)
Offset: -8 Now: 6:53 AM (GMT-08:00) Tijuana, Baja California
Offset: -9 Now: 5:53 AM (GMT-09:00) Alaska
Offset: -10 Now: 3:53 AM (GMT-10:00) Hawaii
Offset: -11 Now: 2:53 AM (GMT-11:00) Midway Island, Samoa
Offset: -12 Now: 1:53 AM (GMT-12:00) International Date Line West

Jul 29 '08 #5

r035198x

13,262

MVP

I see then that you want the order reversed. I don't know that VB syntax's equivalent in C# but a work around is to add all the timezones into a List<TimeZoneIn fo> and then calling list.Reverse() on it.

Jul 29 '08 #6

Kitizhi

New Member

Instead of using

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 ReadOnlyCollection<TimeZoneInfo> timeZones = TimeZoneInfo.GetSystemTimeZones()
 

use

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 System.Collections.ArrayList timeZones = Infragistics.Win.Utilities.GetTimeZones();
 

Aug 29 '13 #7

usmanarshad1

New Member

@qwedster
Below code should help.
TimeZoneInfo.Ge tSystemTimeZone s().OrderBy(t => t.BaseUtcOffset );

while assigning to drop down use this
ValueMember = "Id"
DisplayMember = "DisplayNam e"

Jan 17 '14 #8

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