private void ChartCursorSelected(Chart sender, ChartCursor e)
{
txtChartSelect.Text = e.X.ToString("F4") + ", " + e.Y.ToString("F4");
Debug.WriteLine("Cursor Position: " + txtChartSelect.Text + " @ " + e.ChartArea.Name);
PointF diff = sender.CursorsDiff();
txtCursorDelta.Text = diff.X.ToString("F4") + ", " + diff.Y.ToString("F4");
}