private void StartOrStop(bool start) { if (start) { LockUi(true); _currentPercentage = 0; labelPercentage.Text = ""; _stopwatch.Reset(); labelPercentage.Refresh(); _stopwatch.Start(); LoadingAnimation.Start(advancedDataGridView); } else { LoadingAnimation.End(advancedDataGridView); LockUi(false); _stopwatch.Stop(); } }