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    <p>(transcribed from Ben as comment)</p> <blockquote> <p>just use System.Windows.Forms.Timer. Set the timer for 5 seconds, and handle the Tick event. When the event fires, do the thing.</p> </blockquote> <p>...and disable the timer (IsEnabled=false) before doing your work in oder to suppress a second.</p> <p>The Tick event <em>may</em> be executed on another thread that cannot modify your gui, you can catch this:</p> <pre><code>private System.Windows.Forms.Timer myTimer = new System.Windows.Forms.Timer(); private void StartAsyncTimedWork() { myTimer.Interval = 5000; myTimer.Tick += new EventHandler(myTimer_Tick); myTimer.Start(); } private void myTimer_Tick(object sender, EventArgs e) { if (this.InvokeRequired) { /* Not on UI thread, reenter there... */ this.BeginInvoke(new EventHandler(myTimer_Tick), sender, e); } else { lock (myTimer) { /* only work when this is no reentry while we are already working */ if (this.myTimer.Enabled) { this.myTimer.Stop(); this.doMyDelayedWork(); this.myTimer.Start(); /* optionally restart for periodic work */ } } } } </code></pre> <hr> <p>Just for completeness: with async/await, one can delay execute something very easy (one shot, never repeat the invocation):</p> <pre><code>private async Task delayedWork() { await Task.Delay(5000); this.doMyDelayedWork(); } //This could be a button click event handler or the like */ private void StartAsyncTimedWork() { Task ignoredAwaitableResult = this.delayedWork(); } </code></pre> <p>For more, see "async and await" in MSDN.</p>
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    1. POHow to asynchronously wait for x seconds and execute something then?
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    1. COUpvoted, nice full explanation.
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    2. CO`.BeginInvoke(myTimer_Tick, sender, e)` doesn't work because "Argument type method group is not assignable to system.delegate
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    3. COPS: if the interval wasn't as long as 5 secs you'd need some locking to prevent a second tick to execute before the first had a chance to disable the timer.
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