protected internal override void onSaveInstanceState(Bundle outState)
 {
     base.onSaveInstanceState(outState);
     // save the current data, for instance when changing screen orientation
     outState.putSerializable("dataset", mDataset);
     outState.putSerializable("renderer", mRenderer);
     outState.putSerializable("current_series", mCurrentSeries);
     outState.putSerializable("current_renderer", mCurrentRenderer);
 }
	  protected internal override void onSaveInstanceState(Bundle outState)
	  {
		base.onSaveInstanceState(outState);
		// save the current data, for instance when changing screen orientation
		outState.putSerializable("dataset", mDataset);
		outState.putSerializable("renderer", mRenderer);
		outState.putSerializable("current_series", mCurrentSeries);
		outState.putSerializable("current_renderer", mCurrentRenderer);
	  }
	  protected internal override void onSaveInstanceState(Bundle outState)
	  {
		base.onSaveInstanceState(outState);
		outState.putSerializable("current_series", mSeries);
		outState.putSerializable("current_renderer", mRenderer);
	  }
 protected internal override void onSaveInstanceState(Bundle outState)
 {
     base.onSaveInstanceState(outState);
     outState.putSerializable("current_series", mSeries);
     outState.putSerializable("current_renderer", mRenderer);
 }