public void SimulateMailArrived(string from, string to, string subj, string body)
{
MailEventArgs args = new MailEventArgs()
{
Body = body,
From = from,
Subject = subj,
To = to
};
MailArrived?.Invoke(this, args);
/*
* EQUIVALENTE A :
* if (MailArrived !=null)
* {
* MailArrived(this, args);
* /*EQUIVALENTE A
* foreach (var item in MailArrived.GetInvocationList().ToList())
* {
* MailEventHandler mm_eh = (MailEventHandler)item;
* mm_eh(this, args);
* }
*
* }
*/
}
public void SimulateMailArrived(string from, string to, string subject, string body) // simulazione di sollevamento evento
{
MailEventArgs args = new MailEventArgs() // li ho creati nella classe delegatestuff per comodita
{
Body = body,
From = from,
Subject = subject,
To = to
};
// devo sollevare l'evento, quindo scorrere la lista dei delegate
if (MailArrived != null) // se qualcuno si è sottoscritto
{
foreach (var item in MailArrived.GetInvocationList().ToList())
{
MailManagerEventHandler mm_eh = (MailManagerEventHandler)item; // downcast per non avere un delegate generico
mm_eh(this, args); //uso il puntatore come metodo, metto this perchè sono io che sollevo l'evento e ci passo gli argomenit
}
}
// analogo di tutto quello che ho nell'if è MailArrived(this, args) o MailArrived?.Invoce(this, args)
}
public void SimulateMailArrived(string from, string to, string subject, string body)
{
MailEventArgs args = new MailEventArgs()
{
Body = body,
From = from,
Subject = subject,
To = to
};
#region altri modi di invocare la invocation list
/*
* // primo metodo
* MailArrived?.Invoke(this, args);
*
*
* // secondo metodo
* if (MailArrived != null)
* {
* MailArrived(this, args);
* }
*/
#endregion
// metodo esplicito
if (MailArrived != null)
{
// Rise Event!!!!!!!!!!
foreach (var item in MailArrived.GetInvocationList())
{
MailManagerEventHandler mm_eh = (MailManagerEventHandler)item;
mm_eh(this, args);
}
}
}
private void _mm_MailArrived(object sender, MailEventArgs args)
{
Console.WriteLine("I'm a Printer \r\n Mail From: {0} \t\t Mail to: {1} \r\n Subject: {2}\t\t Body: {3}",
args.From, args.To, args.Subject, args.Body);
}
public void mm_MailArrived(Object sender, MailEventArgs e)
{
Console.WriteLine("i'm a PRINTER \r\n Mail From: {0}, Mail to: {1}, \r\n Subject: {2}, Body: {3}",
e.From, e.To, e.Subject, e.Body);
}
private void _mm_MailArrived(object sender, MailEventArgs e)
{
Console.WriteLine("i'm a FAX \r\n Mail From: {0}, Mail to: {1}, \r\n Subject: {2}, Body: {3}",
e.From, e.To, e.Subject, e.Body);
}
public void mm_MailArrived(Object sender, MailEventArgs args)
{
Console.WriteLine("I'm a Fax \r\n Mail From: {0} \t\t Mail to: {1} \r\n Subject: {2}\t\t Body: {3}",
args.From, args.To, args.Subject, args.Body);
}
public void mm_MailArrived(Object sender, MailEventArgs args) // predispongo il metodo
{
Console.WriteLine("I'm a Fax \r\n Mail from: {0}, Mail to: {1} \r\n Subject: {2} \t\t Body:{3}",
args.From, args.To, args.Subject, args.Body);
}
