Trend Indicators

• May 28, 2021
• 2 minutes to read

Trend Indicators show the tendency of series values to move in a specific direction over time. Trend indicators are commonly used with financial charts.

This document contains the following sections:

• Available Trend Indicators
• How to Add a Trend Indicator

Available Trend Indicators

The Chart control supports the following Trend indicators:

Trend indicator	Class	Specific parameters
Bollinger Bands	BollingerBands	BollingerBands.StandardDeviationMultiplier BollingerBands.PointsCount BollingerBands.ValueLevel
Mass Index	MassIndex	MassIndex.SumPointsCount MassIndex.MovingAveragePointsCount XYDiagram2D.IndicatorPane XYDiagram2D.IndicatorAxisY
Standard Deviation	StandardDeviation	StandardDeviation.PointsCount StandardDeviation.ValueLevel XYDiagram2D.IndicatorPane XYDiagram2D.IndicatorAxisY

How to Add a Trend Indicator

You can position the Standard Deviation and Mass Index indicators in a separate pane with a secondary y-axis. The following XAML shows how to add the Standard Deviation Indicator:

XAML

<dxc:ChartControl>
    <!--...-->
    <dxc:XYDiagram2D>
        <!--...-->
        <dxc:StockSeries2D DisplayName="Series">
            <dxc:StockSeries2D.Indicators>
                <dxc:StandardDeviation PointsCount="14"
                                       ValueLevel="Close"
                                       dxc:XYDiagram2D.IndicatorPane="{Binding ElementName=indicatorPane}"
                                       dxc:XYDiagram2D.IndicatorAxisY="{Binding ElementName=indicatorAxisY}"
                                       Legend="{Binding ElementName=indicatorLegend}"
                                       LegendText="Standard Deviation"                                           
                                       ShowInLegend="True"/>
            </dxc:StockSeries2D.Indicators>
            <!--...-->
        </dxc:StockSeries2D>
        <dxc:XYDiagram2D.Panes>
            <dxc:Pane x:Name="indicatorPane"/>
        </dxc:XYDiagram2D.Panes>
        <dxc:XYDiagram2D.SecondaryAxesY>
            <dxc:SecondaryAxisY2D x:Name="indicatorAxisY"
                                  Alignment="Far">
                <dxc:SecondaryAxisY2D.WholeRange>
                    <dxc:Range dxc:AxisY2D.AlwaysShowZeroLevel="False"/>
                </dxc:SecondaryAxisY2D.WholeRange>
            </dxc:SecondaryAxisY2D>
        </dxc:XYDiagram2D.SecondaryAxesY>
    </dxc:XYDiagram2D>
</dxc:ChartControl>

The following table lists classes and properties used to add the Standard Deviation indicator to a chart:

Class or Property	Description
XYSeries2D.Indicators	The series collection of indicators.
StandardDeviation	The Standard Deviation indicator.
StandardDeviation.PointsCount	The number of series points used to build the indicator.
StandardDeviation.ValueLevel	Specifies the point value used to calculate the indicator.
XYDiagram2D.IndicatorPane	Specifies the pane that contains the indicator.
XYDiagram2D.IndicatorAxisY	Specifies the y-axis used with the indicator.
Indicator.Legend	Specifies the legend that displays the legend.
Indicator.LegendText	The text that shows with the identifier marker in the legend.
Indicator.ShowInLegend	Specifies whether to show the indicator in the legend.