15.11. Configuring a Timer
Problem
You have one of the following timer configuration needs:
You want to use a timer to call a timer callback method at a fixed time after the timer object has been created. Once this callback method has been called the first time, you want to call this same callback method at a specified interval (this interval might be different from the time interval between the creation of the timer and the first time the timer callback method is called).
You want to use a timer to call a timer callback method immediately upon creation of the
System.Threading.Timer
object, after which the callback method is called at a specified interval.You want to use a timer to call a timer callback method one time only.
You have been using a
System.Threading.Timer
object and need to change the intervals at which its timer callback method is called.
Solution
To fire a
System.Threading.Timer
after an initial delay, and
then at a specified period after that, use the
System.Threading.Timer
constructor to set up
different times for the initial and following callbacks:
using System; using System.Threading; public class TestTimers { public static int count = 0; public static Timer timerRef = null; public static void Main( ) { TimerCallback callback = new TimerCallback(TimerMethod); // Create a timer that waits one half second, then invokes // the callback every second thereafter. Timer timer = new Timer(callback, null,500, 1000); // store a reference to this timer so the callback can ...
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