Calendar.AlgorithmType Property

Definition

Namespace:

System.Globalization

Assembly:

System.Runtime.dll

Source:

Calendar.cs

Gets a value indicating whether the current calendar is solar-based, lunar-based, or a combination of both.

public:
 virtual property System::Globalization::CalendarAlgorithmType AlgorithmType { System::Globalization::CalendarAlgorithmType get(); };

public virtual System.Globalization.CalendarAlgorithmType AlgorithmType { get; }

member this.AlgorithmType : System.Globalization.CalendarAlgorithmType

Public Overridable ReadOnly Property AlgorithmType As CalendarAlgorithmType

Property Value

CalendarAlgorithmType

One of the CalendarAlgorithmType values.

Examples

The following example uses reflection to instantiate each Calendar type found in .NET and displays the value of its AlgorithmType property.

using System;
using System.Collections;
using System.Globalization;
using System.Reflection;

public class Example
{
   public static void Main()
   {
      Assembly assem = Assembly.GetAssembly(typeof(Calendar));
      Type[] types = assem.GetExportedTypes();
      Type[] calendars = Array.FindAll(types, IsValidCalendar);
      Array.Sort(calendars, new CalendarComparer());

      Console.WriteLine("{0,-30} {1}\n", "Calendar", "Algorithm Type");
      foreach (var cal in calendars) {
         // Instantiate a calendar object.
         ConstructorInfo ctor = cal.GetConstructor( new Type[] {} );
         Calendar calObj = (Calendar) ctor.Invoke( new Type[] {} );

         Console.WriteLine("{0,-30} {1}",
                          cal.ToString().Replace("System.Globalization.", ""),
                          cal.InvokeMember("AlgorithmType",
                                           BindingFlags.Public | BindingFlags.Instance | BindingFlags.GetProperty,
                                           null, calObj, null));
      }
   }

   private static bool IsValidCalendar(Type t)
   {
        if (t.IsSubclassOf(typeof(Calendar)))
            if (t.IsAbstract)
                return false;
            else
                return true;
        else
            return false;
   }
}

public class CalendarComparer : IComparer
{
   public int Compare(object x, object y)
   {
      Type tX = (Type) x;
      Type tY = (Type) y;

      return tX.Name.CompareTo(tY.Name);
   }
}
// The example displays the following output:
//       Calendar                       Algorithm Type
//
//       ChineseLunisolarCalendar       LunisolarCalendar
//       GregorianCalendar              SolarCalendar
//       HebrewCalendar                 LunisolarCalendar
//       HijriCalendar                  LunarCalendar
//       JapaneseCalendar               SolarCalendar
//       JapaneseLunisolarCalendar      LunisolarCalendar
//       JulianCalendar                 SolarCalendar
//       KoreanCalendar                 SolarCalendar
//       KoreanLunisolarCalendar        LunisolarCalendar
//       PersianCalendar                SolarCalendar
//       TaiwanCalendar                 SolarCalendar
//       TaiwanLunisolarCalendar        LunisolarCalendar
//       ThaiBuddhistCalendar           SolarCalendar
//       UmAlQuraCalendar               LunarCalendar

Imports System.Collections
Imports System.Globalization
Imports System.Reflection

Module Example
   Public Sub Main()
      Dim assem As Assembly = Assembly.GetAssembly(GetType(Calendar))
      Dim types() As Type = assem.GetExportedTypes()
      Dim calendars() As Type = Array.FindAll(types, AddressOf IsValidCalendar)
      Array.Sort(calendars, New CalendarComparer())

      Console.WriteLine("{0,-30} {1}", "Calendar", "Algorithm Type")
      Console.WriteLine()
      For Each cal In calendars
         ' Instantiate a calendar object.
         Dim ctor As ConstructorInfo = cal.GetConstructor( {} )
         Dim calObj As Calendar = CType(ctor.Invoke( {} ), Calendar) 

         Console.WriteLine("{0,-30} {1}", 
                          cal.ToString().Replace("System.Globalization.", ""),
                          cal.InvokeMember("AlgorithmType", 
                                           BindingFlags.Public Or BindingFlags.Instance Or BindingFlags.GetProperty,
                                           Nothing, calObj, Nothing))
      Next
   End Sub
   
   Private Function IsValidCalendar(ByVal t As Type) As Boolean
        If t.IsSubClassOf(GetType(Calendar)) Then
            If t.IsAbstract Then
                Return False
            Else
                Return True
            End If
        Else
            Return False
        End If
    End Function
End Module

Public Class CalendarComparer : Implements IComparer
   Public Function Compare(ByVal x As Object, ByVal y As Object) As Integer _
                  Implements IComparer.Compare
      Dim tX As Type = DirectCast(x, Type)
      Dim tY As Type = DirectCast(y, Type)

      Return tX.Name.CompareTo(tY.Name)
   End Function
End Class
' The example displays the following output:
'       Calendar                       Algorithm Type
'       
'       ChineseLunisolarCalendar       LunisolarCalendar
'       GregorianCalendar              SolarCalendar
'       HebrewCalendar                 LunisolarCalendar
'       HijriCalendar                  LunarCalendar
'       JapaneseCalendar               SolarCalendar
'       JapaneseLunisolarCalendar      LunisolarCalendar
'       JulianCalendar                 SolarCalendar
'       KoreanCalendar                 SolarCalendar
'       KoreanLunisolarCalendar        LunisolarCalendar
'       PersianCalendar                SolarCalendar
'       TaiwanCalendar                 SolarCalendar
'       TaiwanLunisolarCalendar        LunisolarCalendar
'       ThaiBuddhistCalendar           SolarCalendar
'       UmAlQuraCalendar               LunarCalendar