Time EventHandler

[brunoconde]

I'm making a program to schedule my programs and to shut down my computer in a choosen time but this way my processor is 100 percent, logicaly. How can i change this. while (!(System.DateTime.Now.Equals(shut.getDateTime()))) { } this.Computer_Shutdown(); Please help me. Thank you. :((

[Stefan Troschuetz]

Add a Thread.Sleep(1) into your while loop and cpu usage will drop :) Otherwise you could use a timer to periodically process the following:

if (System.DateTime.Now.Equals(shut.getDateTime()))
this.Computer_Shutdown();

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www.troschuetz.de

[mav northwind]

Using such a busy wait is _really_ bad style. I'd suggest the following: Create a new timer and set it's interval to the amount of milliseconds from now to the desired shutdown time:

Timer shutTimer = new Timer();
shutTimer.Tick += new EventHandler(shutTimer_Tick);
TimeSpan waitDuration = shut.GetDateTime().Subtract(DateTime.Now);
shutTimer.Interval = (int)waitDuration.TotalMilliseconds;
shutTimer.Start();
[...]
private void shutTimer_Tick(object sender, EventArgs e)
{
this.Computer_Shutdown();
}

Regards, mav

[brunoconde]

But I can't use a timer because I'm using a thread to do this, i tried and did not work. The idea is great. Thanks. ;)

[mav northwind]

That's why there are several different types of timers in .NET. If you can't use a System.Windows.Forms.Timer (because you don't have a GUI) then a System.Timers.Timer should work fine. The events differ a little, but the concept stays the same: Calculate how long until the desired shutdown time and wind up the timer... Regards, mav