Moving Average is a moving average trendline used in financial charts. It analyzes data points by creating series of averages of various subsets of the complete data set.

In FinancialChart, you can create an instance of the MovingAverage class, and set the Type property to any of the following values from the MovingAverageType enumeration:

• Exponential: Weighted average of the last n values, where the weightage decreases exponentially with each previous value.
• Simple: An average of the last n values.
• Triangular: Weighted average of the last n values, whose result is equivalent to a double smoothed simple moving average.
• Weighted: Weighted average of the last n values, where the weightage decreases by 1 with each previous value.

You can set the ChartType property to specify the chart type for the moving average. The property accepts values from the FinancialChartType enumeration. For more details on chart types, refer to Financial Chart Types.

In addition, you can use the Period property to specify the period of the moving average. Once you have set the properties, add the moving average to the Series collection.

<Chart:C1FinancialChart Binding="Sales" 
                        BindingX="Date" 
                        x:Name="financialChart" 
                        ChartType="Line" 
                        ItemsSource="{Binding DataContext.Data}" 
                        HorizontalAlignment="Left" 
                        Height="321" 
                        VerticalAlignment="Top" 
                        Width="620" 
                        Margin="79,85,0,0">
    <Finance:Series AxisX="{x:Null}" 
                    AxisY="{x:Null}" 
                    Chart="{x:Null}" 
                    SeriesName="{x:Null}">
    </Finance:Series>
    <Chart:MovingAverage x:Name="ma" 
                         Type="Weighted" 
                         ChartType="Line" 
                         Period="2"/>
</Chart:C1FinancialChart>

' create a Moving Average instance
Dim ma As New C1.Xaml.Chart.Finance.MovingAverage()

' set the properties of the Moving Average instance
ma.Type = C1.Chart.MovingAverageType.Weighted
ma.ChartType = C1.Chart.Finance.FinancialChartType.Line
ma.Period = 2

' add the Moving Average instance to the Series collection
financialChart.Series.Add(ma)

// create a Moving Average instance
C1.Xaml.Chart.Finance.MovingAverage ma = new C1.Xaml.Chart.Finance.MovingAverage();

// set the properties of the Moving Average instance
ma.Type = C1.Chart.MovingAverageType.Weighted;
ma.ChartType = C1.Chart.Finance.FinancialChartType.Line;
ma.Period = 2;

// add the Moving Average instance to the Series collection
financialChart.Series.Add(ma);