private void btnAdminAddUser_Click(object sender, EventArgs e)
{
myDel methods = RechargeGDV;
methods += ResetTxt;
try
{
string name = txtAdminName.Text;
string lastName = txtAdminLname.Text;
string pass = txtAdminPass.Text;
string dui = txtAdminDUI.Text;
DateTime dateTime = dtpAdminBirth.Value;
string sqlFormattedDate = dateTime.ToString("yyyy-MM-dd");
int dept = cmbAdminDept.SelectedIndex + 1;
if (name.Equals("") || pass.Equals("") || dui.Equals(""))
{
MessageBox.Show("Asegúrese de ingresar correctamente la información.");
}
else
{
UserDAO.CreateUser(pass, name, lastName, dui, sqlFormattedDate, dept);
MessageBox.Show("Usuario creado correctamente.\nAsegúrese de guardar la contraseña.");
methods.Invoke();
}
}
catch (Exception exception)
{
MessageBox.Show("Asegúrese de ingresar correctamente la información.");
}
}
public void DoEvent(string Address)
{
Random rnd = new Random();
FireDel?.Invoke("Вызов принят", DateTime.Now);
FireDel?.Invoke("Бригада выехала на ", DateTime.Now);
for (int i = 0; i < rnd.Next(10, 30); i++)
{
Thread.Sleep(50);
Console.Write(".");
}
Console.WriteLine("");
FireDel?.Invoke("Бригада приехала", DateTime.Now);
for (int i = 0; i < rnd.Next(10, 30); i++)
{
Thread.Sleep(50);
Console.Write(".");
}
Console.WriteLine("");
FireDel?.Invoke("Пожар потушен ", DateTime.Now);
}
delegate void Operation(int num); //method that returns void and receive a number
static void Main(string[] args)
{
myDel del = new myDel(sayHello);
//how to invoke delegate:
del.Invoke(); //will invoke sayHello
//syntax sugar of above
myDel del2 = sayHello;
del2(); //instead of invoke
//how to chaindelegates
Operation op = Double;
op += Triple; //concat also the triple method
op(2); //will invoke Double and Triple
/*
* ======================================
* Anonymous Methods & Lambda Expressions
* ======================================
*/
Operation op2 = (num) => { Console.WriteLine(num); };//sugar syntax that let us avoid form declaring a method
/*
* ======================================
* Generic Delegates
* ======================================
*/
//- Let us avoid of declaring a Delegate Type (for ex as we declared above Operation and myDel types)
//Action - doesn't have a return value
Action <int> action;//can contain methods that doesnt return value and has int as input
action = Double;
action(2); //will print 4
action += Triple; //concating another method
action(3); //will print 6 and then 9
//Func - does have return value
Func <int, string> func; //can contain methods that return string value and has int as input
func = (int num) => { return(num.ToString()); };
//action and func can have many inputs as we want
Action <int, string, double> action2 = (num, s, d) => Console.WriteLine($"{num}{s}{d}");;
Console.ReadKey();
}
static void Main(string[] args)
{
Console.WriteLine("Enter a number:");
int number = 0;
try {
string num = Console.ReadLine();
number = Convert.ToInt32(num);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
Console.WriteLine("Hello World!");
myDel addd = (x) => x + 10;
Console.WriteLine($"The number {number} plus 10 is {addd.Invoke(number)}");
myDel power = delegate(int x) { return(Math.Pow(x, 10)); };
Console.WriteLine($"The number {number} to power 10 is {power.Invoke(number)}");
}