private void CheckPositions()
{
// Refresh Chart rotating the device
chart.RemoveFromSuperview();
View.AddSubview(chart);
chart.DoInvalidate();
}
public override void DidRotate(UIInterfaceOrientation fromInterfaceOrientation)
{
// Refresh Chart rotating the device
chart.RemoveFromSuperview();
chart.Frame = View.Frame;
View.AddSubview(chart);
chart.DoInvalidate();
}