Getting the name of the Enumeration Constant having Specified value in C#

Enum.GetName(Type, Object) Method is used to get the name of the constant in the specified enumeration that has the specified value.

Syntax:

public static string GetName (Type enumType, object value);

Parameters:

enumType: It is an enumeration type.
value: It is the value of a particular enumerated constant in terms of its underlying type.

Returns: It is a string containing the name of the enumerated constant in enumType whose value is the value or null if no such constant is found.

Exceptions:

ArgumentNullException: If the enumType or value is null.
ArgumentException: If the enumType is not an Enum or value is neither of type enumType nor does it have the same underlying type as enumType.

Example:

// C# program to illustrate the 
// Enum.GetName(Type, Object) Method 
using System; 
  
enum Animals { Dog, 
               Cat, 
               Cow, 
               Monkey }; 
  
class GFG { 
  
    // Main Method 
    public static void Main(String[] args) 
    { 
  
        // using the method 
        Console.WriteLine("2nd value is {0}", Enum.GetName(typeof(Animals), 1)); 
        Console.WriteLine("4th value is {0}", Enum.GetName(typeof(Animals), 3)); 
    } 
} 

Output:

2nd value is Cat
4th value is Monkey

Reference:

https://docs.microsoft.com/en-us/dotnet/api/system.enum.getname?view=netframework-4.8

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