Commodity Channel Index | ComponentOne FinancialChart for WPF

Commodity Channel Index

In This Topic

Commodity Channel Index (CCI) indicator is an oscillator that measures an asset's current price level relative to an average price level over a specified period of time. It is used to determine a new trend or to warn about extreme conditions.

In FinancialChart, you need to use a CCI object to work with Commodity Channel Index. FinancialChart also enables you to fetch the calculated CCI values at run-time using GetValues() method. This can help in creating alerts in application or maintaining logs while working with dynamic data.

See the following code snippet that demonstrates how you can use CCI indicator. The code snippet uses a class DataService.cs whose code can be seen by referring to Average True Range.

Visual Basic
C#

Visual Basic

Partial Public Class Indicators
    Inherits UserControl

    Private dataService As DataService = dataService.GetService()
    Private cci As New CCI() With {
        Key.SeriesName = "CCI"
    }

    Public Sub New()
        InitializeComponent()
    End Sub

    Public ReadOnly Property Data() As List(Of Quote)
        Get
            Return dataService.GetSymbolData("box")
        End Get
    End Property

    Public ReadOnly Property IndicatorType() As List(Of String)
        Get
            Return New List(Of String)() From {
                "Commodity Channel Index"
            }
        End Get
    End Property

    Private Sub OnIndicatorTypeSelectionChanged(sender As Object, e As SelectionChangedEventArgs)
        Dim ser As FinancialSeries = Nothing
        If cbIndicatorType.SelectedIndex = 0 Then
            ser = cci
        End If


        If ser IsNot Nothing AndAlso Not indicatorChart.Series.Contains(ser) Then
            indicatorChart.BeginUpdate()
            indicatorChart.Series.Clear()
            indicatorChart.Series.Add(ser)
            indicatorChart.EndUpdate()
        End If
    End Sub

    Private Sub OnFinancialChartRendered(sender As Object, e As C1.WPF.Chart.RenderEventArgs)
        If indicatorChart IsNot Nothing Then
            indicatorChart.AxisX.Min = DirectCast(financialChart.AxisX, IAxis).GetMin()
            indicatorChart.AxisX.Max = DirectCast(financialChart.AxisX, IAxis).GetMax()
        End If
    End Sub
End Class

public partial class Indicators : UserControl
{

    DataService dataService = DataService.GetService();
    CCI cci = new CCI() { SeriesName = "CCI" };

    public Indicators()
    {
        InitializeComponent();
    }

    public List<Quote> Data
    {
        get
        {
            return dataService.GetSymbolData("box");
        }
    }

    public List<string> IndicatorType
    {
        get
        {
            return new List<string>()
            {
                "Commodity Channel Index",
            };
        }
    }

    void OnIndicatorTypeSelectionChanged(object sender, SelectionChangedEventArgs e)
    {
        FinancialSeries ser = null;
        if (cbIndicatorType.SelectedIndex == 0)
            ser = cci;


        if (ser != null && !indicatorChart.Series.Contains(ser))
        {
            indicatorChart.BeginUpdate();
            indicatorChart.Series.Clear();
            indicatorChart.Series.Add(ser);
            indicatorChart.EndUpdate();
        }
    }

    void OnFinancialChartRendered(object sender, C1.WPF.Chart.RenderEventArgs e)
    {
        if (indicatorChart != null)
        {
            indicatorChart.AxisX.Min = ((IAxis)financialChart.AxisX).GetMin();
            indicatorChart.AxisX.Max = ((IAxis)financialChart.AxisX).GetMax();
        }
    }
}