Customer.cs

using System;
using System.Linq;
 
namespace CSharp_Attributes_Walkthrough.My_Custom_Attributes
{
    [Alias("Filipino_Customers", ConsoleColor.Yellow)]
    public class Customer
    {
        [Alias("Fname", ConsoleColor.White, AlternativeName = "Customer_FirstName")]
        public string Firstname { get; set; }
 
        [Alias("Lname", ConsoleColor.White, AlternativeName = "Customer_LastName")]
        public string LastName { get; set; }
 
        public override string ToString()
        {
            //get the current running instance.
            Type instanceType = this.GetType(); 
 
            //get the namespace of the running instance.
            string current_namespace = (instanceType.Namespace) ?? "";
 
            //get the alias.
            string alias = (this.GetType().GetCustomAttributes(false).FirstOrDefault() as AliasAttribute)?.Alias;
 
            return $"{current_namespace}.{alias}";
        }
    }
}