How to include time on the processing?

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My application displays rows in a listbox, which contains code that controls a physical device via USB. I want to have a processing time between the lines. Such as when the first row is processed, the second should be processed only after 1 second, and so on.
How can I do this? Thanks in advance.

Posted 19-Aug-11 16:49pm

Edson Rodrigues da Silva

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-08-19T17:32:00

Use a separate thread for this purpose and dynamically calculate sleep time between the lines asking the current time using System.DateTime.Now, calculate how much time to sleep and use System.Threading.Thread.Sleep.

Alternatively, use (sigh…) a timer. Timer seems easier to use, but in fact it's harder to use it reliably. There are three timers in .NET:

System.Threading.Timer; see http://msdn.microsoft.com/en-us/library/system.threading.timer.aspx[^];

System.Timers.Timer; see http://msdn.microsoft.com/en-us/library/system.timers.timer.aspx[^];

System.Windows.Forms.Timer; see http://msdn.microsoft.com/en-us/library/system.windows.forms.timer.aspx[^]; avoid using this one by all means: it is very inaccurate even though it's easier to use.

—SA