Page History: Estimated Time of Completion Calculation - C#

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Page Revision: Sun, Mar 18, 2012, 1:01 PM

private DateTime _startTime;
private int _imax; // upper bound of the zero-based array being processed

private void UpdateStatus(int i)
{
    var qtyDone = i + 1;
    var qtyTotal = _imax + 1;
    var msElapsed = DateTime.Now.Subtract(_startTime).TotalMilliseconds;
    var unitTime = msElapsed / (double)qtyDone;
    var etc = DateTime.Now.AddMilliseconds(unitTime * qtyTotal);

    uxProcessingLabel.Text = qtyDone.ToString("#,##0") + " of " + qtyTotal.ToString("#,##0");
    uxEtcLabel.Text = etc.ToString("MM/dd/yy h:mm:ss tt");
    uxProcessingLabel.Refresh();
    uxEtcLabel.Refresh();
}