Jak zapętlić wszystkie wartości enum w C#? [duplikat]
To pytanie ma już odpowiedź tutaj:
jak wyliczyć enum w C#? 26 odpowiedzi
public enum Foos
{
A,
B,
C
}
Czy istnieje sposób na przepętanie możliwych wartości Foos
?
foreach(Foo in Foos)
1144
8 answers
Tak możesz użyć metody GetValues
:
var values = Enum.GetValues(typeof(Foos));
Lub wersja na literę:
var values = Enum.GetValues(typeof(Foos)).Cast<Foos>();
Dawno temu dodałem funkcję helpera do mojej prywatnej biblioteki na taką właśnie okazję:
public static class EnumUtil {
public static IEnumerable<T> GetValues<T>() {
return Enum.GetValues(typeof(T)).Cast<T>();
}
}
Użycie:
var values = EnumUtil.GetValues<Foos>();
1633
Author: JaredPar,
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2018-04-28 13:34:05
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2018-04-28 13:34:05
foreach(Foos foo in Enum.GetValues(typeof(Foos)))
686
Author: SLaks,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2011-12-01 11:27:34
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2011-12-01 11:27:34
foreach (EMyEnum val in Enum.GetValues(typeof(EMyEnum)))
{
Console.WriteLine(val);
}
Kredyt dla Jona Skeeta tutaj: http://bytes.com/groups/net-c/266447-how-loop-each-items-enum
99
Author: Inisheer,
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2009-06-09 20:28:56
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2009-06-09 20:28:56
foreach (Foos foo in Enum.GetValues(typeof(Foos)))
{
...
}
48
Author: adrianbanks,
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2009-06-09 20:43:08
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2009-06-09 20:43:08
Aktualizacja
Jakiś czas później widzę komentarz, który przywraca mi dawną odpowiedź i myślę, że teraz zrobiłbym to inaczej. W dzisiejszych czasach napisałbym:
private static IEnumerable<T> GetEnumValues<T>()
{
// Can't use type constraints on value types, so have to do check like this
if (typeof(T).BaseType != typeof(Enum))
{
throw new ArgumentException("T must be of type System.Enum");
}
return Enum.GetValues(typeof(T)).Cast<T>();
}
28
Author: Neil Barnwell,
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2013-02-04 10:48:55
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2013-02-04 10:48:55
static void Main(string[] args)
{
foreach (int value in Enum.GetValues(typeof(DaysOfWeek)))
{
Console.WriteLine(((DaysOfWeek)value).ToString());
}
foreach (string value in Enum.GetNames(typeof(DaysOfWeek)))
{
Console.WriteLine(value);
}
Console.ReadLine();
}
public enum DaysOfWeek
{
monday,
tuesday,
wednesday
}
20
Author: dbones,
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2017-03-08 15:01:37
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2017-03-08 15:01:37
Enum.GetValues(typeof(Foos))
7
Author: Vasu Balakrishnan,
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2009-06-09 20:30:07
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2009-06-09 20:30:07
Tak. Użycie GetValues()
metoda w System.Enum
klasy.
6
Author: Pablo Santa Cruz,
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2018-04-09 21:24:00
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/doraprojects.net/template/agent.layouts/content.php on line 54
2018-04-09 21:24:00