/// <summary>
/// Private.
///
/// The progress reporting function. Pushes progress reports out at a predefined interval.
/// (Note continous updates cause a backlog in the UI, so this is avoided.)
/// </summary>
/// <returns>true to indicate continuation, false to indicate the user has requested
/// the operation be cancelled. Unless DisableThrowOnCancel has been called the result
/// will always be true and a TaskCanceledException will be thrown to instead indicate
/// cancellation.</returns>
private bool ReportProgress()
{
if (_lastUpdate.ElapsedMilliseconds > MAX_UPDATE_TIME || _forceUpdate)
{
// Update!
// Get text
string text = StringHelper.ArrayToString(_texts.Reverse(), " – ");
// Get continue text
string ctext;
if (_continue != null)
{
ctext = _continue;
}
else if (_bytes != 0)
{
ctext = StringHelper.DisplayBytes(_bytes);
}
else
{
ctext = null;
}
_destination.ReportProgressDetails(new ProgInfo(text, _percent, ctext));
_lastUpdate.Restart();
_forceUpdate = false;
}
if (!_allowContinue && (_throwOnCancel == 0))
{
throw new TaskCanceledException("The task was cancelled.");
}
return(_allowContinue);
}
