enum c#
// ---------------------- HOW TO USE ENUMS? ----------------------- //
// How to create?
public enum Colors // It needs to be defined at the namespace level (outside any class)!
{
red = 1,
green = 2,
blue = 3,
white = 4,
black = 5
}
// How to get the values?
var itemRed = Colors.red;
Console.WriteLine((int)itemRed); // Using casting to convert to int
// How to get the keys?
var itemX = 4;
Console.WriteLine((Colors)itemX); // Using casting to convert to Colors
// How to convert enums to strings?
var itemBlue = Colors.blue;
Console.WriteLine(itemBlue.ToString());
// How to convert strings to enums?
var colorName = "green";
var enumName = (Colors)Enum.Parse(typeof(Colors), colorName);
Console.WriteLine(enumName); // To see the key
Console.WriteLine((int)enumName); // To see the value
enum cars
{
Exit, // Default value = 0
Racing, // Can set next value Racing = 3 then Military would be 4
Military,
Trucks // Can set value to a character Trucks = 'a'
}
static void Main(string[] args)
{
Console.WriteLine("1. Racing");
Console.WriteLine("2. Military");
Console.WriteLine("3. Trucks");
Console.WriteLine("0. Exit");
int option = int.Parse(Console.ReadLine());
Menu choice = (Menu)option;
switch (choice)
{
case Menu.Exit:
break;
case Menu.Racing:
//Console.Writeline("You selected Racing");
break;
case Menu.Military:
int myOption = (int) cars.Military;
Console.WriteLine(myOption);
//Output: 2
break;
case Menu.Trucks:
cars myVar = cars.Trucks;
Console.WriteLine(myVar);
//Output: Trucks
break;
}
}