asked on

C# - Always run an app with the same interval.

Hello,

I use timers in my app, but after a while , begins to have delays on timers, these delays will grow over the time.

I throught of some solutions to this problem, and if anyone has other, I would learn.

1st - We always run function at the same time according to the system time.
2nd - Everyday reset the timer.

How to call a function in accordance with the system clock?
How to repeat this function every 2 hours until the funtion is canceled?

Thanks in advance,
ocaccy

"delay captured"

2013/6/24 - 7:57:00	first function
2013/6/24 - 8:00:00	second function
2013/6/24 - 8:00:10	third function
2013/6/24 - 8:12:00	fourth function
	
2013/6/24 - 9:57:00	first function
2013/6/24 - 10:00:00	second function
2013/6/24 - 10:00:10	third function
2013/6/24 - 10:12:00	fourth function
	
2013/6/24 - 11:57:01	first function
2013/6/24 - 12:00:01	second function
2013/6/24 - 12:00:11	third function
2013/6/24 - 12:12:01	fourth function
	
2013/6/24 - 13:57:01	first function
2013/6/24 - 14:00:01	second function
2013/6/24 - 14:00:11	third function
2013/6/24 - 14:12:01	fourth function
	
2013/6/24 - 15:57:04	first function
2013/6/24 - 16:00:05	second function
2013/6/24 - 16:00:15	third function
2013/6/24 - 16:12:05	fourth function
	
2013/6/24 - 17:57:04	first function
2013/6/24 - 18:00:04	second function
2013/6/24 - 18:00:14	third function
2013/6/24 - 18:12:04	fourth function
	
2013/6/24 - 19:57:06	first function
2013/6/24 - 20:00:06	second function
2013/6/24 - 20:00:16	third function
2013/6/24 - 20:12:06	fourth function
	
2013/6/24 - 21:57:09	first function
2013/6/24 - 22:00:09	second function
2013/6/24 - 22:00:19	third function
2013/6/24 - 22:12:09	fourth function
	
2013/6/24 - 23:57:11	first function
2013/6/25 - 0:00:11	second function
2013/6/25 - 0:00:21	third function
2013/6/25 - 0:12:11	fourth function
	
2013/6/25 - 1:57:13	first function
2013/6/25 - 2:00:13	second function
2013/6/25 - 2:00:23	third function
2013/6/25 - 2:12:13	fourth function

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SOLUTION

Julian Hansen

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ocaccy

ASKER

Code OK. embed=snippet 8257405

How to reset the timers after processing?

System scheduler? Tell me about it, please.

            timer_sensorLoop.Interval=7200000;
            timer_sensorCopy.Interval=900000;
            timer_preSensor.Interval=180000;
            timer_SENSOR.Interval=30000;

        #region timer_sensorLoop_Tick
        private void timer_sensorLoop_Tick(object sender,EventArgs e)
            {
            counterSENSOR=(Convert.ToInt32(Settings.ment.s_nUD_ILS*60));

            save1Time=save1Time+DateTime.Now.ToLongDateString()+" - "+DateTime.Now.ToLongTimeString()+","+"Sensor Copy Start 'sensorLoop'";
            Event_save();

            if(timer_sensorCopy.Enabled!=true) { timer_sensorCopy.Start(); }
            if(timer_preSensor.Enabled!=true) { timer_preSensor.Start(); }
            }
        #endregion

        #region timer_preSensor_Tick
        private void timer_preSensor_Tick(object sender,EventArgs e)
            {
            save1Time=save1Time+DateTime.Now.ToLongDateString()+" - "+DateTime.Now.ToLongTimeString()+","+"Sensor Clear Start 'preSensor'";
            Event_save();

            timer_preFilter.Stop(); timer_filterCopy.Stop(); timer_FILTER.Stop();
            timer_SENSOR.Start();
            timer_preSensor.Stop();
            label11.Text="preSensor: Turn ON the SENSOR.";
            }
        #endregion

        #region timer_SENSOR_Tick
        private void timer_SENSOR_Tick(object sender,EventArgs e)
            {
            save1Time=save1Time+DateTime.Now.ToLongDateString()+" - "+DateTime.Now.ToLongTimeString()+","+"Sensor Clear Stop 'SENSOR'";
            Event_save();

            timer_SENSOR.Stop();
            label11.Text="SENSOR: Turn OFF the SENSOR.";
            }
        #endregion

        #region timer_sensorCopy_Tick
        private void timer_sensorCopy_Tick(object sender,EventArgs e)
            {
            save1Time=save1Time+DateTime.Now.ToLongDateString()+" - "+DateTime.Now.ToLongTimeString()+","+"Sensor Copy Stop 'sensorCopy'"+Environment.NewLine;
            Event_save();
            timer_sensorCopy.Stop();
            }
        #endregion

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SOLUTION

Julian Hansen

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ASKER CERTIFIED SOLUTION

Mike Tomlinson

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ocaccy

ASKER

Thank you julianH and Idle_Mind.

I changed the code to run in 1 minute.
I'll leave running for a few days.
I'm recording the data for analysis.
This working.

    public partial class Form1:Form
        {
        private DateTime DT_sensorLoop;
        int x=0;

        public Form1()
            {
            InitializeComponent();
            //DT_sensorLoop=DateTime.Today.AddHours(DateTime.Now.Hour).AddHours(1);
            //DT_sensorLoop=DateTime.Now.AddMinutes(DateTime.Now.Minute).AddMinutes(1);
            DT_sensorLoop=DateTime.Now.AddMinutes(1);
            timer_sensorLoop.Interval=(int)DT_sensorLoop.Subtract(DateTime.Now).TotalMilliseconds;
            timer_sensorLoop.Start();
            label1.Text="DT_sensorLoop: "+DT_sensorLoop.ToString();
            label2.Text="timer_sensorLoop.Interval: "+timer_sensorLoop.Interval.ToString();
            bLOG_save(); x++;
            }

		private void timer_sensorLoop_Tick(object sender,EventArgs e)
            {
            timer_sensorLoop.Stop();
            //DT_sensorLoop=DT_sensorLoop.AddHours(2);
            DT_sensorLoop=DT_sensorLoop.AddMinutes(1);
            timer_sensorLoop.Interval=(int)DT_sensorLoop.Subtract(DateTime.Now).TotalMilliseconds;
            timer_sensorLoop.Start();
            label3.Text="Timer "+x+" minute(s)";
            label2.Text="timer_sensorLoop.Interval: "+timer_sensorLoop.Interval.ToString();
            label4.Text="DT_sensorLoop: "+DT_sensorLoop.ToString();
            bLOG_save();
            x++;
            }
		}

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ocaccy

ASKER

Thank you.
ocaccy

Julian Hansen

You are welcome - thanks for the points.