//the whole purpose is to implement generic PROMOTE Employe method that can be resued again and again
// this can be achieved by Delegates
static void Main(string[] args)
{
List <Employee> employees = new List <Employee>();
employees.Add(new Employee {
Id = 101, Name = "John", Salary = 5000, Experience = 4
});
employees.Add(new Employee {
Id = 102, Name = "Mary", Salary = 10000, Experience = 9
});
employees.Add(new Employee {
Id = 103, Name = "Walid", Salary = 8000, Experience = 6
});
employees.Add(new Employee {
Id = 104, Name = "Ola", Salary = 2000, Experience = 1
});
// this is way number one to call the method(Employee.PromoteEmployee)
Ispromotoable isPromoted = new Ispromotoable(Promote);
Employee.PromoteEmployee(employees, isPromoted);
// Another way to call the method(Employee.PromoteEmployee) by using LAMBDA expression
// in that case you do not need to implement (Promote method)
Employee.PromoteEmployee(employees, x => x.Experience > 5);
}
// adding a function as parameter to the PromoteEmployee method
public static void PromoteEmployee(IList <Employee> emloyeeList, Ispromotoable isEligible)
{
// this method need to be implemnted by Delegates
foreach (Employee emp in emloyeeList)
{
// this method will pass to promote the employee based on logic "E.g. Employee experience greater than 5 years"
// this will be passed by LAMDA expression or by calling a bool method which return true or false
if (isEligible(emp))
{
Console.WriteLine("Employee : {0} -- promoted", emp.Name);
}
}
}
