Raise event at a certain time?

Raise event at a certain time?

• Hussein Khalifeh

  You can use a thread. Use thread.sleep() method. Get the difference between the current time and user defined time. Set the thread to sleep mode for that specified duration.

  The thread will automatically start at that time.

  
  
  

• Alex James

  Hi

  This works fine for me using timer

• Darren903

  You could use the Timer class. This is from System.Timers namespace but if you have a windows form you could look at that Timer class.

  Set the interval to be from now to when the it needs to be activated. You can use the TotalMilliseconds of a TimeSpan containing the difference between the time to alert the user and DateTime.Now to set the Interval property of the Timer.

  
  
  

• Scott.Anderson

  I ended up using the TimeSpan and Timer to get this working. Here is the class I ended up using (incase anyone else runs into a similar problem) feel free to add suggestions.
  
  [code]
  public class ScheduledEvent
  {
  // Our timer
  private Timer timer;
  // Our ScheduleHandler
  public delegate void ScheduleHandler ( );
  // And the event
  public event ScheduleHandler RaiseAction;
  
  public ScheduledEvent ( DateTime when )
  {
  // If we are already passed when we should do it
  if ( when < DateTime.Now )
  // Dont bother
  throw ( new Exception ( "Cannot schedule an event in history." ) );
  
  // Get our timespan
  TimeSpan timeSpan = when - DateTime.Now;
  // Create our timer
  timer = new Timer ( timeSpan.TotalMilliseconds );
  // Our elapse function
  timer.Elapsed += new ElapsedEventHandler(timer_Elapsed);
  // Start our timer
  timer.Start ( );
  } // End constructor
  
  private void timer_Elapsed ( object sender, ElapsedEventArgs e )
  {
  // If we have something watching the event
  if ( null != RaiseAction )
  // Do it
  RaiseAction ( );
  
  // Stop the timer
  timer.Stop ( );
  } // End timer elapsed
  [/code]
  
  
• Raise event at a certain time?