// NewEditionPublished - Handler method for the NewEdition event.
// Note that the method matches the event's signature.
void NewEditionPublished(object sender, EventArgs e)
{
// Must cast e to get at its contents.
NewEditionEventArgs ne = (NewEditionEventArgs)e;
Console.WriteLine("({0}) {1}: {2} - {3}", ne.PubDate, ne.Head,
Name, Gripe);
}
// Publish - Put out a new edition of the DailyNoise.
// This causes the NewEdition event to be raised.
public void Publish(DateTime date, string majorHeadline)
{
Console.WriteLine("Publication: {0}, {1}", date, majorHeadline);
// Set up the event arguments.
NewEditionEventArgs e = new NewEditionEventArgs(date, majorHeadline);
// Call our "event raiser" method.
OnNewEdition(e);
}
// Main()'s handler method for the NewEdition event.
static void DailyNoise_NewEdition(object sender, EventArgs e)
{
// Cast sender if you need information from the sending object.
Publisher pub = (Publisher)sender;
// Cast e if you need additional arguments with the event.
NewEditionEventArgs ne = (NewEditionEventArgs)e;
Console.WriteLine("({0}) {1}: {2} - {3}", ne.PubDate, ne.Head,
pub.Name, "Ah, the paper's on my roof again!");
}
// OnNewEdition - This method takes the correct steps to
// safely raise the NewEdition event.
// Note: Always provide an OnXXX event raiser method.
protected virtual void OnNewEdition(NewEditionEventArgs e)
{
// Save a copy (for safety in multithreaded programs).
EventHandler temp = NewEdition;
// Make sure there are subscribers to the event.
if (temp != null)
{
// Actually raise the event.
// 'this' is the Publisher object.
temp(this, e);
}
}
// OnNewEdition - This method takes the correct steps to
// safely raise the NewEdition event.
// Note: Always provide an OnXXX event raiser method.
protected virtual void OnNewEdition(NewEditionEventArgs e)
{
// Save a copy (for safety in multithreaded programs).
EventHandler temp = NewEdition;
// Make sure there are subscribers to the event.
if (temp != null)
{
// Actually raise the event.
// 'this' is the Publisher object.
temp(this, e);
}
}
// Publish - Put out a new edition of the DailyNoise.
// This causes the NewEdition event to be raised.
public void Publish(DateTime date, string majorHeadline)
{
Console.WriteLine("Publication: {0}, {1}", date, majorHeadline);
// Set up the event arguments.
NewEditionEventArgs e = new NewEditionEventArgs(date, majorHeadline);
// Call our "event raiser" method.
OnNewEdition(e);
}