Run once a day in C#

Question

Is there any clever method out there to make my executeEveryDayMethod() execute once a day, without having to involve the Windows TaskScheduler?

Answer 1

public partial class Main : Form {
public Main( ) // Windows Form is called Main { InitializeComponent( ); }

    private void Main_Load( object sender, EventArgs e )
    {
        /*
         This example uses a System.Windows.Forms Timer

         This code allows you to schedule an event at any given time in one day.
         In this example the timer will tick at 3AM.

         */
        Int32 alarm = GetAlarmInMilliseconds( 3, 0, 0 ); // Milliseconds until 3:00 am.
        timer_MessageCount.Interval = alarm; // Timer will tick at 3:00am.

        timer_MessageCount.Start( );                    
    }

    private Int32 GetAlarmInMilliseconds(Int32 eventHour, Int32 eventMinute, Int32 eventSecond )
    {
        DateTime now = DateTime.Now;
        DateTime eventTime = new DateTime( now.Year, now.Month, now.Day, eventHour, eventMinute, eventSecond );

        TimeSpan ts;

        if ( eventTime > now )
        {
            ts = eventTime - now;
        }
        else
        {
            eventTime = eventTime.AddDays( 1 );
            ts = eventTime - now;
        }

        Console.WriteLine("Next alarm in: {0}", ts );

        return ( Int32 ) ts.TotalMilliseconds;
    }        

    static void DoSomething( )
    {
        Console.WriteLine( "Run your code here." );
    }      

    private void timer_MessageCount_Tick( object sender, EventArgs e )
    {
        DoSomething( );

        Int32 alarm = GetAlarmInMilliseconds( 3, 0, 0 ); // Next alarm time = 3AM
        timer_MessageCount.Interval = alarm;            
    }
}