FinancialIndicatorPoint.ValueLevel Property

Gets or sets a value indicating how to obtain the value of a financial indicator's point.

Namespace: DevExpress.XtraCharts

Assembly: DevExpress.XtraCharts.v20.1.dll

Declaration

public ValueLevel ValueLevel { get; set; }
Public Property ValueLevel As ValueLevel

Property Value

Type Description
ValueLevel

A ValueLevel enumeration value, which indicates how to obtain a financial indicator point's value.

Remarks

Any FinancialIndicator needs two points (FinancialIndicator.Point1 and FinancialIndicator.Point2) to be specified for it. And, each point should have a pair of arguments and values defined.

A point's argument is defined via its FinancialIndicatorPoint.Argument property. And, the value is obtained from the series, in whose XYDiagram2DSeriesViewBase.Indicators storage the current FinancialIndicator resides.

If this series view requires more than one value to be defined for its data points (as in Stock and Candle Stick series), the required value level is specified via the ValueLevel property.

Examples

This example demonstrates how to create a Fibonacci Indicator of a certain kind (Arcs, Fans or Retracements), and add it to a financial series.

To do this, create an instance of the FibonacciIndicator class, and specify its FibonacciIndicator.Kind property. Then, add this indicator to the series collection of indicators, returned by the XYDiagram2DSeriesViewBase.Indicators property.

using System;
using System.Drawing;
using System.Windows.Forms;
using DevExpress.XtraCharts;

namespace FibonacciIndicators {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
        }

        #region Initialization
        private void Form1_Load(object sender, EventArgs e) {
            // Create a series.
            Series series = new Series("Stock", ViewType.Stock);
            series.ArgumentScaleType = ScaleType.DateTime;

            // Populate the series with data.
            AddPoints(series);

            // Add it to the chart.
            this.chartControl1.Series.Add(series);

            // Adjust the chart's appearance.
            XYDiagram diagram = (XYDiagram)this.chartControl1.Diagram;
            diagram.AxisY.WholeRange.AlwaysShowZeroLevel = false;
            diagram.AxisX.Label.Staggered = true;
        }
        #endregion

        #region Providing Data
        private void AddPoints(Series series) {
            series.Points.AddRange(new SeriesPoint[] {
                new SeriesPoint(new DateTime(2007, 12, 24), new object[] {110.55, 112, 111.3, 111.65}),
                new SeriesPoint(new DateTime(2007, 12, 26), new object[] {110.9, 112.09, 110.9, 111.56}),
                new SeriesPoint(new DateTime(2007, 12, 27), new object[] {109.49, 111.3,  110.53, 109.6}),
                new SeriesPoint(new DateTime(2007, 12, 28), new object[] {109.108, 110.76, 110.76, 110.09}),
                new SeriesPoint(new DateTime(2007, 12, 31), new object[] {107.26, 110, 109.51, 108.1}),
                new SeriesPoint(new DateTime(2008, 1, 2), new object[] {104.17, 108.99, 108.99, 104.69}),
                new SeriesPoint(new DateTime(2008, 1, 3), new object[] {103.98, 105.57, 104.83, 104.9}),
                new SeriesPoint(new DateTime(2008, 1, 4), new object[] {100.48, 103.95, 103.95, 101.13}),
                new SeriesPoint(new DateTime(2008, 1, 7), new object[] {99.03, 101, 100.25, 100.05}),
                new SeriesPoint(new DateTime(2008, 1, 8), new object[] {97.17, 100.38, 100.05, 97.59}),
                new SeriesPoint(new DateTime(2008, 1, 9), new object[] {97.16, 99.15, 97.76, 98.31}),
                new SeriesPoint(new DateTime(2008, 1, 10), new object[] {97.15, 100.86, 97.39, 99.92}),
                new SeriesPoint(new DateTime(2008, 1, 11), new object[] {97.09, 99.46, 99.2, 97.67}),
                new SeriesPoint(new DateTime(2008, 1, 14), new object[] {101.33, 105.59, 105.01, 102.93}),
                new SeriesPoint(new DateTime(2008, 1, 15), new object[] {101.23, 104.04, 102.03, 101.83}),
                new SeriesPoint(new DateTime(2008, 1, 16), new object[] {100.14, 102.86, 100.14, 101.63}),
                new SeriesPoint(new DateTime(2008, 1, 17), new object[] {100.05, 103.45, 102, 101.1}),
                new SeriesPoint(new DateTime(2008, 1, 18), new object[] {102.5, 106.72, 106.72, 103.4}),
                new SeriesPoint(new DateTime(2008, 1, 22), new object[] {98.55, 103.09, 98.55, 101.22}),
                new SeriesPoint(new DateTime(2008, 1, 23), new object[] {98.5, 106.335, 99.63, 106.1}),
                new SeriesPoint(new DateTime(2008, 1, 24), new object[] {104.68, 107.51, 106.38, 106.91}),
                new SeriesPoint(new DateTime(2008, 1, 25), new object[] {104.1, 107.79, 107.79, 104.52}),
                new SeriesPoint(new DateTime(2008, 1, 28), new object[] {103.83, 105.77, 104.44, 104.98}),
                new SeriesPoint(new DateTime(2008, 1, 29), new object[] {104.6, 106.8, 105.5, 106.1}),
                new SeriesPoint(new DateTime(2008, 1, 30), new object[] {104.855, 107.65, 105.85, 105.65}),
                new SeriesPoint(new DateTime(2008, 1, 31), new object[] {103.7, 107.97, 104.21, 107.11})
             });
        }
        #endregion

        #region Processing Button_Click
        private void btnArcs_Click(object sender, EventArgs e) {
            AddIndicator(chartControl1.Series[0], FibonacciIndicatorKind.FibonacciArcs);
        }

        private void btnFans_Click(object sender, EventArgs e) {
            AddIndicator(chartControl1.Series[0], FibonacciIndicatorKind.FibonacciFans);
        }

        private void btnRetracements_Click(object sender, EventArgs e) {
            AddIndicator(chartControl1.Series[0], FibonacciIndicatorKind.FibonacciRetracement);
        }
        #endregion

        private void AddIndicator(Series ser, FibonacciIndicatorKind kind) {
            // Get a collection of indicators.
            IndicatorCollection indicators =
                ((StockSeriesView)ser.View).Indicators;

            // Clear it.
            indicators.Clear();

            // Add a new indicator to it.
            indicators.Add(CreateIndicator(kind, new DateTime(2007, 12, 27), 
                new DateTime(2008, 1, 17), ValueLevel.High));
        }

        private FibonacciIndicator CreateIndicator(FibonacciIndicatorKind kind,
            DateTime arg1, DateTime arg2, ValueLevel level) {

            // Create the Fibonacci Indicator of the specified kind.
            FibonacciIndicator fi = new FibonacciIndicator(kind);

            // Specify its start and end points.
            fi.Point1.Argument = arg1;
            fi.Point1.ValueLevel = level;
            fi.Point2.Argument = arg2;
            fi.Point2.ValueLevel = level;

            // Select the name.
            switch (fi.Kind) {
                case FibonacciIndicatorKind.FibonacciArcs: {
                        fi.Name = "Arcs";
                        break;
                    }
                case FibonacciIndicatorKind.FibonacciFans: {
                        fi.Name = "Fans";
                        break;
                    }
                case FibonacciIndicatorKind.FibonacciRetracement: {
                        fi.Name = "Retracement";
                        break;
                    }
            }

            // Make all its levels visible.
            fi.ShowLevel23_6 = true;
            fi.ShowLevel76_4 = true;
            fi.ShowLevel0 = true;
            fi.ShowLevel100 = true;
            fi.ShowAdditionalLevels = true;

            // Customize its appearance.
            fi.BaseLevelColor = Color.Green;
            fi.BaseLevelLineStyle.DashStyle = DashStyle.Dash;

            return fi;
        }
    }
}
See Also