protected internal override void onCreate(Bundle savedInstanceState) { base.onCreate(savedInstanceState); ContentView = R.layout.xy_chart; // the top part of the UI components for adding new data points mX = (EditText)findViewById(R.id.xValue); mY = (EditText)findViewById(R.id.yValue); mAdd = (Button)findViewById(R.id.add); // set some properties on the main renderer mRenderer.ApplyBackgroundColor = true; mRenderer.BackgroundColor = Color.argb(100, 50, 50, 50); mRenderer.AxisTitleTextSize = 16; mRenderer.ChartTitleTextSize = 20; mRenderer.LabelsTextSize = 15; mRenderer.LegendTextSize = 15; mRenderer.Margins = new int[] { 20, 30, 15, 0 }; mRenderer.ZoomButtonsVisible = true; mRenderer.PointSize = 5; // the button that handles the new series of data creation mNewSeries = (Button)findViewById(R.id.new_series); mNewSeries.OnClickListener = new OnClickListenerAnonymousInnerClassHelper(this); mAdd.OnClickListener = new OnClickListenerAnonymousInnerClassHelper2(this); }