Sub-Totals for Child Elements in WPF Pivot Grid

By default, the pivot grid calculates summaries based on the parent nodes available in rows and columns. You can also display the subtotals based on the child elements available in rows and columns using the ShowSubTotalsForChildren property. This property can be set through XAML or code-behind.

For XAML, refer to the following code sample.

  • xaml
  • <Grid>
            <syncfusion:PivotGridControl HorizontalAlignment="Left" Name="pivotGrid1" VerticalAlignment="Top" VisualStyle="Metro" ShowSubTotalsForChildren="True" ItemSource="{Binding Source={StaticResource data}}">
    
                <syncfusion:PivotGridControl.PivotRows>
                    <syncfusion:PivotItem FieldHeader="Product" FieldMappingName="Product" TotalHeader="Total" />
                    <syncfusion:PivotItem FieldHeader="Date" FieldMappingName="Date" TotalHeader="Total" />
                    <syncfusion:PivotItem FieldHeader="Country" FieldMappingName="Country" TotalHeader="Total" />
                </syncfusion:PivotGridControl.PivotRows>
                <syncfusion:PivotGridControl.PivotColumns>
                    <syncfusion:PivotItem FieldHeader="State" FieldMappingName="State" TotalHeader="Total" />
                </syncfusion:PivotGridControl.PivotColumns>
                <syncfusion:PivotGridControl.PivotCalculations>
                    <syncfusion:PivotComputationInfo CalculationName="Total" FieldName="Amount" Format="C" SummaryType="DoubleTotalSum" CalculationType="PercentageOfColumnTotal" />
                    <syncfusion:PivotComputationInfo CalculationName="Total" FieldName="Quantity" SummaryType="Count" />
                </syncfusion:PivotGridControl.PivotCalculations>
        </Grid>

    For code-behind, refer to the following code sample.

  • c#
  • public partial class MainWindow: Window {
        PivotGridControl pivotGrid = new PivotGridControl();
        public MainWindow() {
            InitializeComponent();
            grid1.Children.Add(pivotGrid);
            pivotGrid.ItemSource = ProductSales.GetSalesData();
            PivotItem m_PivotItem = new PivotItem() {
                FieldHeader = "Product", FieldMappingName = "Product", TotalHeader = "Total"
            };
            PivotItem m_PivotItem1 = new PivotItem() {
                FieldHeader = "Date", FieldMappingName = "Date", TotalHeader = "Total"
            };
            PivotItem n_PivotItem = new PivotItem() {
                FieldHeader = "Country", FieldMappingName = "Country", TotalHeader = "Total"
            };
            PivotItem n_PivotItem1 = new PivotItem() {
                FieldHeader = "State", FieldMappingName = "State", TotalHeader = "Total"
            };
            // Adding PivotItem to PivotRows
            pivotGrid.PivotRows.Add(m_PivotItem);
            pivotGrid.PivotRows.Add(m_PivotItem1);
            pivotGrid.PivotRows.Add(n_PivotItem);
            // Adding PivotItem to PivotColumns
            pivotGrid.PivotColumns.Add(n_PivotItem1);
            PivotComputationInfo m_PivotComputationInfo = new PivotComputationInfo() {
                CalculationName = "Amount", FieldName = "Amount", Format = "C", SummaryType = SummaryType.DoubleTotalSum
            };
            PivotComputationInfo m_PivotComputationInfo1 = new PivotComputationInfo() {
                CalculationName = "Quantity", FieldName = "Quantity", SummaryType = SummaryType.Count
            };
            pivotGrid.PivotCalculations.Add(m_PivotComputationInfo);
            pivotGrid.PivotCalculations.Add(m_PivotComputationInfo1);
    
            pivotGrid.PivotEngine.ShowSubTotalsForChildren = true;
        }
    }

    SubtotalsForChildren