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.NET Scheduled Timer

, 16 Sep 2005 CPOL
A timer that easily supports absolute schedules like run at 4:00 AM every day or at 5:00 PM on Fridays..
scheduletimer_demo.zip
ReportTimerTest
bin
Release
ReportTimerTest.exe
ScheduleTimer.dll
App.ico
ScheduleTimer
bin
Release
ScheduleTimer.dll
ScheduledItems
StopTest
App.ico
TimerTest
bin
Release
ScheduleTimer.dll
TimerTest.exe
App.ico
TransClock
bin
Release
ScheduleTimer.dll
TransClock.exe
App.ico
ScheduleTimer.png
TransClock.build
scheduletimer_src.zip
App.ico
App.ico
App.ico
App.ico
ScheduleTimer.png
TransClock.build
transclock_demo.zip
App.ico
App.ico
/***************************************************************************
 * Copyright Andy Brummer 2004-2005
 * 
 * This code is provided "as is", with absolutely no warranty expressed
 * or implied. Any use is at your own risk.
 *
 * This code may be used in compiled form in any way you desire. This
 * file may be redistributed unmodified by any means provided it is
 * not sold for profit without the authors written consent, and
 * providing that this notice and the authors name is included. If
 * the source code in  this file is used in any commercial application
 * then a simple email would be nice.
 * 
 **************************************************************************/

using System;
using System.Collections;

namespace Schedule
{
	/// <summary>
	/// This is an empty filter that does not filter any of the events.
	/// </summary>
	public class Filter : IResultFilter
	{
		public static IResultFilter Empty = new Filter();
		private Filter() {}

		public void FilterResultsInInterval(DateTime Start, DateTime End, ArrayList List)
		{
			if (List == null)
				return;
			List.Sort();
		}
	}

	/// <summary>
	/// This causes only the first event of the interval to be counted.
	/// </summary>
	public class FirstEventFilter : IResultFilter
	{
		public static IResultFilter Filter = new FirstEventFilter();
		private FirstEventFilter() {}

		public void FilterResultsInInterval(DateTime Start, DateTime End, ArrayList List)
		{
			if (List == null)
				return;
			if (List.Count < 2)
				return;
			List.Sort();
			List.RemoveRange(1, List.Count-1);
		}
	}

	/// <summary>
	/// This causes only the last event of the interval to be counted.
	/// </summary>
	public class LastEventFilter : IResultFilter
	{
		public static IResultFilter Filter = new LastEventFilter();
		private LastEventFilter() {}

		public void FilterResultsInInterval(DateTime Start, DateTime End, ArrayList List)
		{
			if (List == null)
				return;
			if (List.Count < 2)
				return;
			List.Sort();
			List.RemoveRange(0, List.Count-1);
		}
	}

}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Andy Brummer
Architect Michael & Susan Dell Foundation
United States United States
I'm a web developer, math and physics enthusiast, and all around great guy. I live in Austin TX and love using technology to change people's lives for the better.
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