C# SFChart类代码示例

		public DateChartView ()
		{
			SFChart chart 						= new SFChart ();
			chart.Title.Text					= (NSString)"Average Sales Comparison";
			SFDateTimeAxis dateTimeAxis 		= new SFDateTimeAxis ();
			dateTimeAxis.EdgeLabelsDrawingMode  = SFChartAxisEdgeLabelsDrawingMode.Hide;
			dateTimeAxis.IntervalType 			= SFChartDateTimeIntervalType.Years;
			dateTimeAxis.Interval 				= new NSNumber(1);

			NSDateFormatter formatter			= new NSDateFormatter ();
			formatter.DateFormat				= "MM/yyyy";

			dateTimeAxis.LabelStyle.LabelFormatter	= formatter;
			dateTimeAxis.LabelRotationAngle			= -60;

			chart.PrimaryAxis 					= dateTimeAxis;
			chart.PrimaryAxis.Title.Text    	= new NSString ("Sales Across Years");

			chart.SecondaryAxis 				= new SFNumericalAxis ();
			chart.SecondaryAxis.Minimum 		= new NSNumber(0);
			chart.SecondaryAxis.Maximum 		= new NSNumber(100);
			chart.SecondaryAxis.Interval 		= new NSNumber(10);
			chart.SecondaryAxis.Title.Text 		= new NSString ("Sales Amount in Millions (USD)");

			NSNumberFormatter numberFormatter 	= new NSNumberFormatter ();
			numberFormatter.NumberStyle 		= NSNumberFormatterStyle.Currency;
			numberFormatter.MinimumFractionDigits	= 0;

			chart.SecondaryAxis.LabelStyle.LabelFormatter  = numberFormatter;

			DateTimeDataSource dataModel 	= new DateTimeDataSource ();
			chart.DataSource 				= dataModel as SFChartDataSource;
			this.control = chart;
		}

		public Trackball ()
		{
			chart 					        = new SFChart ();
			SFNumericalAxis primaryAxis     = new SFNumericalAxis ();
			chart.PrimaryAxis 				= primaryAxis;
			SFNumericalAxis secondaryAxis 	= new SFNumericalAxis ();
			chart.SecondaryAxis 			= secondaryAxis;
			ChartTrackballDataSource dataModel 	= new ChartTrackballDataSource ();
			chart.DataSource 				= dataModel as SFChartDataSource;

			label 					= new UILabel ();
			label.Text 				= "Press and hold to enable trackball";
			label.Font				= UIFont.FromName("Helvetica", 12f);
			label.TextAlignment 	= UITextAlignment.Center;
			label.LineBreakMode 	= UILineBreakMode.WordWrap;
			label.Lines 			= 2; 
			label.BackgroundColor   = UIColor.Black.ColorWithAlpha (0.7f);
			label.TextColor 		= UIColor.White;


			chart.AddChartBehavior (new SFChartTrackballBehavior());
			this.AddSubview (chart);
			this.AddSubview (label);
			this.control = this;
		}

	public override SFSeries GetSeries (SFChart chart, nint index)
	{
		SFLineSeries series = new SFLineSeries ();
		series.DataMarker.ShowLabel	= true;
		series.DataMarker.LabelStyle.Angle = 320;
		return series;
	}

		public AutoScrolling ()
		{

			chart 							= new SFChart ();
			SFNumericalAxis primaryAxis 	= new SFNumericalAxis ();
			primaryAxis.AutoScrollingDelta 	= 10;
			chart.PrimaryAxis				= primaryAxis;
			SFNumericalAxis secondaryAxis 	= new SFNumericalAxis ();
			secondaryAxis.Minimum 			= NSObject.FromObject(0);
			secondaryAxis.Maximum 			= NSObject.FromObject(9);
			chart.SecondaryAxis				= secondaryAxis;
			dataModel 						= new AutoScrollingDataSource ();
			chart.DataSource 				= dataModel as SFChartDataSource;

			label 							= new UILabel ();
			label.Text 						= "In this demo, a data point is being added for every 500 milliseconds. The Chart is then automatically scrolled to display the fixed range of data points at the end. You can also pan to view previous data points. In this sample the delta value is 10";
			label.Font						= UIFont.FromName("Helvetica", 12f);
			label.TextAlignment 			= UITextAlignment.Center;
			label.LineBreakMode 			= UILineBreakMode.WordWrap;
			label.Lines 					= 6; 
			label.BackgroundColor   		= UIColor.Black.ColorWithAlpha (0.7f);
			label.TextColor 				= UIColor.White;

			chart.AddChartBehavior (new SFChartZoomPanBehavior());

			this.AddSubview (chart);
			this.AddSubview (label);
			this.control = this;
			random = new Random ();
			UpdateData ();
		}

		public ZoomingandPanning ()
		{
			chart 					= new SFChart ();
			SFCategoryAxis primary 	= new SFCategoryAxis ();
			primary.LabelPlacement	= SFChartLabelPlacement.BetweenTicks;
			chart.PrimaryAxis 		= primary;
			chart.PrimaryAxis.Title.Text    = new NSString ("Company");
			chart.SecondaryAxis 			= new SFNumericalAxis ();
			chart.SecondaryAxis.Title.Text  = new NSString ("Sales");

			ChartZoomPanDataSource dataModel 	= new ChartZoomPanDataSource ();
			chart.DataSource 					= dataModel as SFChartDataSource;

			label 					= new UILabel ();
			label.Text 				= "Pinch to zoom or double tap and drag to select a region to zoom in";
			label.Font				= UIFont.FromName("Helvetica", 12f);
			label.TextAlignment 	= UITextAlignment.Center;
			label.LineBreakMode 	= UILineBreakMode.WordWrap;
			label.Lines 			= 2; 
			label.BackgroundColor   = UIColor.Black.ColorWithAlpha (0.7f);
			label.TextColor 		= UIColor.White;

			chart.AddChartBehavior (new SFChartZoomPanBehavior() {EnableSelectionZooming = true});
			this.AddSubview (chart);
			this.AddSubview (label);
			this.control = this;

		}

		public override SFSeries GetSeries (SFChart chart, nint index)
		{
			SFRangeColumnSeries series					= new SFRangeColumnSeries ();
			series.DataMarker.ShowLabel					= true;
			series.DataMarker.LabelStyle.Margin 	    = new UIEdgeInsets (3, 3, 3, 3);
			return series;
		}

	public override SFSeries GetSeries (SFChart chart, nint index)
	{
		SFSplineSeries series		= new SFSplineSeries ();
		series.LineWidth 			= 3;
		series.DataMarker.ShowLabel	= true;
		return series;
	}

	public override SFSeries GetSeries (SFChart chart, nint index)
	{
		SFSplineAreaSeries series		= new SFSplineAreaSeries ();
		series.Alpha 					= 0.6f;
		series.BorderColor 				= UIColor.FromRGBA( 255.0f/255.0f ,191.0f/255.0f,0.0f/255.0f,1.0f);
		series.BorderWidth 				= 3;
		return series;
	}

	public override SFSeries GetSeries (SFChart chart, nint index)
	{
		SFStackingColumn100Series series 			= new SFStackingColumn100Series ();
		series.DataMarkerPosition				 	= SFChartDataMarkerPosition.Center;
		series.DataMarker.ShowLabel 				= true;
		series.DataMarker.LabelStyle.LabelPosition 	= SFChartDataMarkerLabelPosition.Center;
		return series;
	}

	public override SFSeries GetSeries (SFChart chart, nint index)
	{
		SFPieSeries series			= new SFPieSeries ();
		series.ExplodeIndex 		= 3;
		series.DataMarker.ShowLabel	= true;
		series.DataMarkerPosition 	= SFChartCircularSeriesLabelPosition.OutsideExtended;
		return series;
	}

		public Pyramid ()
		{
			SFChart chart 						= new SFChart ();
			chart.Legend.Visible 				= true;
			ChartPyramidDataSource dataModel	= new ChartPyramidDataSource ();
			chart.DataSource 					= dataModel as SFChartDataSource;
			this.control = chart;
		}

	public override SFSeries GetSeries (SFChart chart, nint index)
	{
		SFDoughnutSeries series				= new SFDoughnutSeries ();
		series.DataMarker.ShowLabel			= true;
		series.ExplodeOnTouch				= true;
		series.DataMarker.LabelContent		= SFChartLabelContent.Percentage;
		return series;
	}

		public override SFSeries GetSeries (SFChart chart, nint index)
		{
			SFScatterSeries series			= new SFScatterSeries ();
			series.ScatterWidth 			= 10;
			series.ScatterHeight 			= 10;
			series.DataMarker.ShowLabel     = true;
			return series;
		}

		public DoughnutChartView ()
		{
			SFChart chart 						= new SFChart ();
			chart.Title.Text 					= new NSString ("Doughnut Chart Title");
			chart.Legend.Visible 				= true;
			ChartDoughnutDataSource dataModel 	= new ChartDoughnutDataSource ();
			chart.DataSource 					= dataModel as SFChartDataSource;
			this.control = chart; 
		}

		public OHLC ()
		{
			SFChart chart 					= new SFChart ();
			chart.PrimaryAxis 				= new SFCategoryAxis ();
			chart.SecondaryAxis 			= new SFNumericalAxis ();

			ChartOHLCDataSource dataModel 	= new ChartOHLCDataSource ();
			chart.DataSource 				= dataModel as SFChartDataSource;
			this.control = chart;
		}