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.
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();
}
}
}