static void Main(string[] args)
{
var customers = new List <Customer>
{
new Customer {
City = "Phoenix", FirstName = "John", LastName = "Doe", ID = 1
},
new Customer {
City = "Phoenix", FirstName = "Jane", LastName = "Doe", ID = 500
},
new Customer {
City = "Seattle", FirstName = "Suki", LastName = "Pizzoro", ID = 3
},
new Customer {
City = "Phoenix", FirstName = "Abriel", LastName = "Lindsy", ID = 45
},
new Customer {
City = "NYC", FirstName = "Michelle", LastName = "Smith", ID = 4
}
};
var phxCustomers = customers
.Where(c => c.City == "Phoenix" && c.ID < 500)
.OrderBy(c => c.FirstName); // using System.Linq to query objects
foreach (var customer in phxCustomers)
{
Console.WriteLine(customer.FirstName + " is from " + customer.City);
}
var data = new ProcessData();
BizRulesDelegate addDel = (x, y) => x + y;
BizRulesDelegate multiplyDel = (x, y) => x * y;
data.Process(2, 3, multiplyDel);
Func <int, int, int> funcAddDel = (x, y) => x + y;
Func <int, int, int> funcMultiplyDel = (x, y) => x * y;
data.ProcessFunc(4, 5, funcAddDel);
Action <int, int> addAction = (x, y) => Console.WriteLine(x + y);
Action <int, int> multiplyAction = (x, y) => Console.WriteLine(x * y);
data.ProcessAction(2, 3, addAction);
data.ProcessAction(2, 3, multiplyAction);
var worker = new Worker();
worker.DoWork(7, WorkType.GenerateReports);
/*
* // Delegate Inference:
* worker.WorkPerformed += worker_WorkPerformed;
* worker.WorkCompleted += worker_WorkCompleted;
*
* worker.DoWork(8, WorkType.GenerateReports);
*
* static void worker_WorkPerformed(object sender, WorkPerformedEventArgs e)
* {
* Console.WriteLine("Hours worked: " + e.Hours + " " + e.WorkType);
* }
* static void worker_WorkCompleted(object sender, EventArgs e)
* {
* Console.WriteLine("Work is done");
* }
*/
// Lambda Approach for the code above:
worker.WorkPerformed += (s, e) =>
{
Console.WriteLine("Hours worked: " + e.Hours + " " + e.WorkType);
};
worker.WorkCompleted += (s, e) => Console.WriteLine("Work is done");
Console.Read();
}
