Definition and use of enumeration types in C #

Introduction
Enumeration is a specified constant. Its basic type can be divisionCharAny integer outside.
If the basic type is not explicitly declared, useInt32.
Programming Languages generally provide syntax to declare an enumeration consisting of a group of named constants and their values.
Definition
The default base number starts from O and can also be specified.
Enum  Days {Saturday = 1 ,Sunday,Monday,Tuesday,Wednesday,Thursday,Friday} ;
Enum  Colors {Red =   1 ,Green =   2 ,Blue =   4 ,Yellow =   8  } ;

Use
ColorsMycolors =  Colors. Red;
String  Strcolor = Mycolors. tostring ();
Int     Intcolor = ( Int ) Mycolors;
Bit or
ColorsMycolors =  Colors. Red |  Colors. Blue |  Colors. Yellow;
Bitwise AND
ColorsMycolors =  Colors. Red &  Colors. Blue &  Colors. Yellow;
Traversal
Foreach  ( String  S In  Enum. getnames ( Typeof (Days )))
  Response. Write (S +   " -- "   +  Enum. parse ( Typeof (Days ),S). tostring ());
Conversion
ColorsMC = ColorsEnum. parse ( Typeof (Colors), " Red " );
  If  (System. enum. isdefined ( Typeof (Days ), " Monday " ))
   DaysDS =  (Days) enum. parse ( Typeof (Days ), " Monday " );


Example 2:
     Public   Enum  Noticetype
     {
        Notice =   ' A ' ,
        Labrule =   ' H ' ,
        Hotinformation =   ' N ' ,
        Column =   ' C ' ,
        All =   ' 1 ' ,
        Null =   ' 0 '
   }
      // Create Enumeration type
        NoticetypeNoticetype1 =  Noticetype. column;

         // Convert the enumerated type to stringD = "column"
         String  D =  Noticetype1.tostring ();

         // Obtains the base number of the enumeration type.Dd = 'C'
         Char  Dd =  ( Char ) Noticetype1;

         // Obtain the corresponding Enumeration type through the base numberNoticetype2=Noticetype. Notice
         // (Noticetype) 'A '; Both methods are supported.
        NoticetypeNoticetype2 =  (Noticetype) Char. parse ( " A " );

     // Retrieve Enumeration type by nameNoticetype3=Noticetype. Notice
        NoticetypeNoticetype3 =  (Noticetype) enum. parse ( Typeof (Noticetype ), " Notice " );