Use enum type categorize objects : enum « Data Type « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Data Type
3. enum

using System;

enum EmployeeTypeEnum
{
    Employee,
    Manager
}

class Employee
{
    public Employee(string name, float billingRate)
    {
        this.name = name;
        this.billingRate = billingRate;
        type = EmployeeTypeEnum.Employee;
    }
    
    public float CalculateCharge(float hours)
    {
        if (type == EmployeeTypeEnum.Manager)
        {
            Manager c = (Manager) this;
            return(c.CalculateCharge(hours));
        }
        else if (type == EmployeeTypeEnum.Employee)    
            return(hours * billingRate);
        return(0F);
    }
    
    public string TypeName()
    {
        if (type == EmployeeTypeEnum.Manager)
        {
            Manager c = (Manager) this;
            return(c.TypeName());
        }
        else if (type == EmployeeTypeEnum.Employee)
            return("Employee");
        return("No Type Matched");
    }
    
    private string name;
    protected float billingRate;
    protected EmployeeTypeEnum type;
}

class Manager: Employee
{
    public Manager(string name, float billingRate) :
    base(name, billingRate)
    {
        type = EmployeeTypeEnum.Manager;
    }
    
    public new float CalculateCharge(float hours)
    {
        if (hours < 1.0F)
        hours = 1.0F;        // minimum charge.
        return(hours * billingRate);
    }
    
    public new string TypeName()
    {
        return("Civil Employee");
    }
}

class MainClasss{
    public static void Main(){
        Employee[]    earray = new Employee[2];
        earray[0] = new Employee("A", 15.50F);
        earray[1] = new Manager("B", 40F);
        
        Console.WriteLine("{0} charge = {1}",
        earray[0].TypeName(),
        earray[0].CalculateCharge(2F));
        Console.WriteLine("{0} charge = {1}",
        earray[1].TypeName(),
        earray[1].CalculateCharge(0.75F));
    }
}

Employee charge = 31
Civil Employee charge = 40