Enumerations

C# enables you to create your own set of named constants using the enum keyword. These data types allow you to declare a set of names or other literal values that define all the possible values that can be assigned to a variable.

For example, if your program deals with the days of the week, you might want to create a new type called DayOfWeek. You could then declare a new variable of DayOfWeek type, and assign it a value. Using this data type allows your code to be more readable, and also makes it less likely that an illegal or unexpected value will be assigned to the variable.