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ThaiBuddhistCalendar Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Represents the Thai Buddhist calendar.

Inheritance Hierarchy

System.Object
  System.Globalization.Calendar
    System.Globalization.ThaiBuddhistCalendar

Namespace:  System.Globalization
Assembly:  mscorlib (in mscorlib.dll)

Syntax

'Declaration
<ComVisibleAttribute(True)> _
Public Class ThaiBuddhistCalendar _
    Inherits Calendar

[ComVisibleAttribute(true)]
public class ThaiBuddhistCalendar : Calendar

The ThaiBuddhistCalendar type exposes the following members.

Constructors

  Name Description
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 ThaiBuddhistCalendar Initializes a new instance of the ThaiBuddhistCalendar class.

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Properties

  Name Description
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360 Eras Gets the list of eras in the ThaiBuddhistCalendar class. (Overrides Calendar.Eras.)
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360 IsReadOnly Gets a value indicating whether this Calendar object is read-only. (Inherited from Calendar.)
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360 MaxSupportedDateTime Gets the latest date and time supported by the ThaiBuddhistCalendar class. (Overrides Calendar.MaxSupportedDateTime.)
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360 MinSupportedDateTime Gets the earliest date and time supported by the ThaiBuddhistCalendar class. (Overrides Calendar.MinSupportedDateTime.)
Public propertySupported by Silverlight for Windows PhoneSupported by Xbox 360 TwoDigitYearMax Gets or sets the last year of a 100-year range that can be represented by a 2-digit year. (Overrides Calendar.TwoDigitYearMax.)

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Methods

  Name Description
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddDays Returns a DateTime that is the specified number of days away from the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddHours Returns a DateTime that is the specified number of hours away from the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddMilliseconds Returns a DateTime that is the specified number of milliseconds away from the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddMinutes Returns a DateTime that is the specified number of minutes away from the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddMonths Returns a DateTime that is the specified number of months away from the specified DateTime. (Overrides Calendar.AddMonths(DateTime, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddSeconds Returns a DateTime that is the specified number of seconds away from the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddWeeks Returns a DateTime that is the specified number of weeks away from the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 AddYears Returns a DateTime that is the specified number of years away from the specified DateTime. (Overrides Calendar.AddYears(DateTime, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 Equals(Object) Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 Finalize Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDayOfMonth Returns the day of the month in the specified DateTime. (Overrides Calendar.GetDayOfMonth(DateTime).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDayOfWeek Returns the day of the week in the specified DateTime. (Overrides Calendar.GetDayOfWeek(DateTime).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDayOfYear Returns the day of the year in the specified DateTime. (Overrides Calendar.GetDayOfYear(DateTime).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDaysInMonth(Int32, Int32) Returns the number of days in the specified month and year of the current era. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDaysInMonth(Int32, Int32, Int32) Returns the number of days in the specified month in the specified year in the specified era. (Overrides Calendar.GetDaysInMonth(Int32, Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDaysInYear(Int32) Returns the number of days in the specified year of the current era. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetDaysInYear(Int32, Int32) Returns the number of days in the specified year in the specified era. (Overrides Calendar.GetDaysInYear(Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetEra Returns the era of a specified DateTime value. (Overrides Calendar.GetEra(DateTime).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetHashCode Serves as a hash function for a particular type. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetHour Returns the hours value in the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetLeapMonth Calculates the leap month for a specified year and era. (Overrides Calendar.GetLeapMonth(Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetMilliseconds Returns the milliseconds value in the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetMinute Returns the minutes value in the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetMonth Returns the month in the specified DateTime. (Overrides Calendar.GetMonth(DateTime).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetMonthsInYear(Int32) Returns the number of months in the specified year in the current era. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetMonthsInYear(Int32, Int32) Returns the number of months in the specified year in the specified era. (Overrides Calendar.GetMonthsInYear(Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetSecond Returns the seconds value in the specified DateTime. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetType Gets the Type of the current instance. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetWeekOfYear Returns the week of the year that includes the date in the specified DateTime. (Overrides Calendar.GetWeekOfYear(DateTime, CalendarWeekRule, DayOfWeek).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 GetYear Returns the year in the specified DateTime. (Overrides Calendar.GetYear(DateTime).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 IsLeapDay(Int32, Int32, Int32) Determines whether the specified date in the current era is a leap day. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 IsLeapDay(Int32, Int32, Int32, Int32) Determines whether the specified date in the specified era is a leap day. (Overrides Calendar.IsLeapDay(Int32, Int32, Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 IsLeapMonth(Int32, Int32) Determines whether the specified month in the specified year in the current era is a leap month. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 IsLeapMonth(Int32, Int32, Int32) Determines whether the specified month in the specified year in the specified era is a leap month. (Overrides Calendar.IsLeapMonth(Int32, Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 IsLeapYear(Int32) Determines whether the specified year in the current era is a leap year. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 IsLeapYear(Int32, Int32) Determines whether the specified year in the specified era is a leap year. (Overrides Calendar.IsLeapYear(Int32, Int32).)
Protected methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 ToDateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32) Returns a DateTime that is set to the specified date and time in the current era. (Inherited from Calendar.)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 ToDateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Int32) Returns a DateTime that is set to the specified date and time in the specified era. (Overrides Calendar.ToDateTime(Int32, Int32, Int32, Int32, Int32, Int32, Int32, Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 ToFourDigitYear Converts the specified year to a four-digit year by using the TwoDigitYearMax property to determine the appropriate century. (Overrides Calendar.ToFourDigitYear(Int32).)
Public methodSupported by Silverlight for Windows PhoneSupported by Xbox 360 ToString Returns a string that represents the current object. (Inherited from Object.)

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Fields

  Name Description
Public fieldStatic memberSupported by Silverlight for Windows PhoneSupported by Xbox 360 ThaiBuddhistEra Represents the current era. This field is constant.

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Remarks

The Thai Buddhist calendar works exactly like the Gregorian calendar, except that the year and era are different.

The ThaiBuddhistCalendar class recognizes only the current era.

Leap years in the Thai Buddhist calendar correspond to the same leap years in the Gregorian calendar. A leap year in the Gregorian calendar is defined as a Gregorian year that is evenly divisible by four, except if it is divisible by 100. However, Gregorian years that are divisible by 400 are leap years. A common year has 365 days and a leap year has 366 days.

The Thai Buddhist calendar has 12 months with 28 to 31 days each:

GetMonth value

Month

Days in common years

Days in leap years

1

มกราคม (January)

31

31

2

กุมภาพันธ์ (February)

28

29

3

มีนาคม (March)

31

31

4

เมษายน (April)

30

30

5

พฤษภาคม (May)

31

31

6

มิถุนายน (June)

30

30

7

กรกฎาคม (July)

31

31

8

สิงหาคม (August)

31

31

9

กันยายน (September)

30

30

10

ตุลาคม (October)

31

31

11

พฤศจิกายน (November)

30

30

12

ธันวาคม (December)

31

31

February has 29 days during leap years and 28 during common years.

The date January 1, 2001 A.D. in the Gregorian calendar is equivalent to the first day of January in the year 2544 of the current era in the Thai Buddhist calendar.

Each CultureInfo object supports a set of calendars. The CultureInfo.Calendar property returns the default calendar for the culture, and the CultureInfo.OptionalCalendars property returns an array containing all the calendars supported by the culture. To change the calendar used by a CultureInfo object, the application can set the DateTimeFormatInfo.Calendar property of CultureInfo.DateTimeFormat to a new Calendar object if the new calendar is one of the culture's optional calendars. The following example shows how to change the calendar for the th-TH culture to the Thai Buddhist calendar. Note, however, that in most cases the default calendar used by a th-TH CultureInfo object is the ThaiBuddhistCalendar.

' Change the calendar used by a th-TH CultureInfo object to ThaiBuddhist. 
Dim thaiCulture As New CultureInfo("th-TH")
Dim originalCalendar As Calendar = thaiCulture.Calendar
Dim message As String = Nothing

' Confirm that the default calendar is not the ThaiBuddhist calendar.
If originalCalendar.ToString <> "System.Globalization.ThaiBuddhistCalendar" Then
   ' Check whether the culture supports the Taiwan calendar.
   Dim supported As Boolean = False
   For Each supportedCal As Calendar In thaiCulture.OptionalCalendars
      If supportedCal.ToString = "System.Globalization.ThaiBuddhistCalendar" Then
         supported = True            
         thaiCulture.DateTimeFormat.Calendar = supportedCal
         message = String.Format("Changed the current calendar for the {0} culture from {1} to {2}.", _
                                 thaiCulture.ToString(), _
                                 originalCalendar.ToString.Replace("System.Globalization.", ""), _
                                 supportedCal.ToString.Replace("System.Globalization.", ""))                                 
         Exit For
      End If
      If Not supported Then message = "The ThaiBuddhist calendar is not supported."
   Next        
Else
   message = String.Format("ThaiBuddhist is the default calendar for the {0} culture.", _
                           thaiCulture.ToString())
End If
outputBlock.Text += message + vbCrLf
' The example displays the following output:
'   ThaiBuddhist is the default calendar for the th-TH culture.

// Change the calendar used by a th-TH CultureInfo object to ThaiBuddhist. 
CultureInfo thaiCulture = new CultureInfo("th-TH");
Calendar originalCalendar = thaiCulture.Calendar;
string message = null;

// Confirm that the default calendar is not the ThaiBuddhist calendar.
if (originalCalendar.ToString() != "System.Globalization.ThaiBuddhistCalendar")
{
   // Check whether the culture supports the Taiwan calendar.
   bool supported = false;
   foreach (Calendar supportedCal in thaiCulture.OptionalCalendars)
{
      if (supportedCal.ToString() == "System.Globalization.ThaiBuddhistCalendar")
      {
         supported = true;            
         thaiCulture.DateTimeFormat.Calendar = supportedCal;
         message = String.Format("Changed the current calendar for the {0} culture from {1} to {2}.",
                                 thaiCulture.ToString(),
                                 originalCalendar.ToString().Replace("System.Globalization.", ""),
                                 supportedCal.ToString().Replace("System.Globalization.", ""));                                 
         break;
      }
   }        
   if (! supported) message = "The ThaiBuddhist calendar is not supported.";
}
else
{
   message = String.Format("ThaiBuddhist is the default calendar for the {0} culture.",
                           thaiCulture.ToString());
}
outputBlock.Text += message + "\n";
// The example displays the following output:
//   ThaiBuddhist is the default calendar for the th-TH culture.

Platform Notes

Silverlight for Windows Phone Silverlight for Windows Phone

This type is present but is not currently supported on Windows Phone.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Xbox 360, Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.