DateTimeFormatInfo.GetShortestDayName(DayOfWeek) メソッド

public:
 System::String ^ GetShortestDayName(DayOfWeek dayOfWeek);

[System.Runtime.InteropServices.ComVisible(false)]
public string GetShortestDayName(DayOfWeek dayOfWeek);

public string GetShortestDayName(DayOfWeek dayOfWeek);

[<System.Runtime.InteropServices.ComVisible(false)>]
member this.GetShortestDayName : DayOfWeek -> string

member this.GetShortestDayName : DayOfWeek -> string

Public Function GetShortestDayName (dayOfWeek As DayOfWeek) As String

パラメーター

返品

dayOfWeek パラメーターに対応する週の省略名。

属性

ComVisibleAttribute

例外

例

次の例では、日付と時刻の書式パターン、ネイティブカレンダー名、完全名と省略形の月と日の名前を指定するいくつかのメソッドとプロパティを示します。

string[] myDateTimePatterns = ["MM/dd/yy", "MM/dd/yyyy"];

// Get the en-US culture.
CultureInfo ci = new("en-US");
// Get the DateTimeFormatInfo for the en-US culture.
DateTimeFormatInfo dtfi = ci.DateTimeFormat;

// Display the effective culture.
Console.WriteLine("This code example uses the {0} culture.", ci.Name);

// Display the native calendar name.
Console.WriteLine("\nNativeCalendarName...");
Console.WriteLine($"\"{dtfi.NativeCalendarName}\"");

// Display month genitive names.
Console.WriteLine("\nMonthGenitiveNames...");
foreach (string name in dtfi.MonthGenitiveNames)
{
    Console.WriteLine($"\"{name}\"");
}

// Display abbreviated month genitive names.
Console.WriteLine("\nAbbreviatedMonthGenitiveNames...");
foreach (string name in dtfi.AbbreviatedMonthGenitiveNames)
{
    Console.WriteLine($"\"{name}\"");
}

// Display shortest day names.
Console.WriteLine("\nShortestDayNames...");
foreach (string name in dtfi.ShortestDayNames)
{
    Console.WriteLine($"\"{name}\"");
}

// Display shortest day name for a particular day of the week.
Console.WriteLine("\nGetShortestDayName(DayOfWeek.Sunday)...");
Console.WriteLine($"\"{dtfi.GetShortestDayName(DayOfWeek.Sunday)}\"");

// Display the initial DateTime format patterns for the 'd' format specifier.
Console.WriteLine("\nInitial DateTime format patterns for the 'd' format specifier...");
foreach (string name in dtfi.GetAllDateTimePatterns('d'))
{
    Console.WriteLine($"\"{name}\"");
}

// Change the initial DateTime format patterns for the 'd' DateTime format specifier.
Console.WriteLine("\nChange the initial DateTime format patterns for the \n" +
                  "'d' format specifier to my format patterns...");
dtfi.SetAllDateTimePatterns(myDateTimePatterns, 'd');

// Display the new DateTime format patterns for the 'd' format specifier.
Console.WriteLine("\nNew DateTime format patterns for the 'd' format specifier...");
foreach (string name in dtfi.GetAllDateTimePatterns('d'))
{
    Console.WriteLine($"\"{name}\"");
}

/*
Output:

This code example uses the en-US culture.

NativeCalendarName...
"Gregorian Calendar"

MonthGenitiveNames...
"January"
"February"
"March"
"April"
"May"
"June"
"July"
"August"
"September"
"October"
"November"
"December"
""

AbbreviatedMonthGenitiveNames...
"Jan"
"Feb"
"Mar"
"Apr"
"May"
"Jun"
"Jul"
"Aug"
"Sep"
"Oct"
"Nov"
"Dec"
""

ShortestDayNames...
"S"
"M"
"T"
"W"
"T"
"F"
"S"

GetShortestDayName(DayOfWeek.Sunday)...
"S"

Initial DateTime format patterns for the 'd' format specifier...
"M/d/yyyy"
"MMM d, yyyy"
"M/d/yy"

Change the initial DateTime format patterns for the
'd' format specifier to my format patterns...

New DateTime format patterns for the 'd' format specifier...
"MM/dd/yy"
"MM/dd/yyyy"

*/

Dim myDateTimePatterns() As String = {"MM/dd/yy", "MM/dd/yyyy"}
Dim name As String = ""

' Get the en-US culture.
Dim ci As New CultureInfo("en-US")
' Get the DateTimeFormatInfo for the en-US culture.
Dim dtfi As DateTimeFormatInfo = ci.DateTimeFormat

' Display the effective culture.
Console.WriteLine("This code example uses the {0} culture.", ci.Name)

' Display the native calendar name.    
Console.WriteLine(vbCrLf & "NativeCalendarName...")
Console.WriteLine("""{0}""", dtfi.NativeCalendarName)

' Display month genitive names.
Console.WriteLine(vbCrLf & "MonthGenitiveNames...")
For Each name In dtfi.MonthGenitiveNames
    Console.WriteLine("""{0}""", name)
Next name

' Display abbreviated month genitive names.
Console.WriteLine(vbCrLf & "AbbreviatedMonthGenitiveNames...")
For Each name In dtfi.AbbreviatedMonthGenitiveNames
    Console.WriteLine("""{0}""", name)
Next name

' Display shortest day names.
Console.WriteLine(vbCrLf & "ShortestDayNames...")
For Each name In dtfi.ShortestDayNames
    Console.WriteLine("""{0}""", name)
Next name

' Display shortest day name for a particular day of the week.
Console.WriteLine(vbCrLf & "GetShortestDayName(DayOfWeek.Sunday)...")
Console.WriteLine("""{0}""", dtfi.GetShortestDayName(DayOfWeek.Sunday))

' Display the initial DateTime format patterns for the 'd' format specifier.
Console.WriteLine(vbCrLf & "Initial DateTime format patterns for " &
                  "the 'd' format specifier...")
For Each name In dtfi.GetAllDateTimePatterns("d"c)
    Console.WriteLine("""{0}""", name)
Next name

' Change the initial DateTime format patterns for the 'd' DateTime format specifier.
Console.WriteLine(vbCrLf & "Change the initial DateTime format patterns for the " &
                  vbCrLf & "'d' format specifier to my format patterns...")
dtfi.SetAllDateTimePatterns(myDateTimePatterns, "d"c)

' Display the new DateTime format patterns for the 'd' format specifier.
Console.WriteLine(vbCrLf &
                  "New DateTime format patterns for the 'd' format specifier...")
For Each name In dtfi.GetAllDateTimePatterns("d"c)
    Console.WriteLine("""{0}""", name)
Next name

'Output:
'
'This code example uses the en-US culture.
'
'NativeCalendarName...
'"Gregorian Calendar"
'
'MonthGenitiveNames...
'"January"
'"February"
'"March"
'"April"
'"May"
'"June"
'"July"
'"August"
'"September"
'"October"
'"November"
'"December"
'""
'
'AbbreviatedMonthGenitiveNames...
'"Jan"
'"Feb"
'"Mar"
'"Apr"
'"May"
'"Jun"
'"Jul"
'"Aug"
'"Sep"
'"Oct"
'"Nov"
'"Dec"
'""
'
'ShortestDayNames...
'"S"
'"M"
'"T"
'"W"
'"T"
'"F"
'"S"
'
'GetShortestDayName(DayOfWeek.Sunday)...
'"S"
'
'Initial DateTime format patterns for the 'd' format specifier...
'"M/d/yyyy"
'"MMM d, yyyy"
'"M/d/yy"
'
'Change the initial DateTime format patterns for the
''d' format specifier to my format patterns...
'
'New DateTime format patterns for the 'd' format specifier...
'"MM/dd/yy"
'"MM/dd/yyyy"
'