PivotCustomFieldValueCellsEventArgsBase<T1, T2>.Split(Boolean, Predicate<T2>, FieldValueSplitData[]) Method

Splits all field value cells that match the specified condition.

Namespace: DevExpress.XtraPivotGrid

Assembly: DevExpress.PivotGrid.v20.2.Core.dll

Declaration

public void Split(
    bool isColumn,
    Predicate<T2> match,
    params FieldValueSplitData[] cells
)
Public Sub Split(
    isColumn As Boolean,
    match As Predicate(Of T2),
    ParamArray cells As FieldValueSplitData()
)

Parameters

Name Type Description
isColumn Boolean

true to process column field value cells; false to process row field value cells.

match Predicate<T2>

A System.Predicate that specifies the condition used to define which cells should be split.

cells FieldValueSplitData[]

The FieldValueSplitData objects that define how to split the cells.

Remarks

The Split method cannot split a field value cell if it has only one nested cell, or has none.

To split a cell (or several cells), create a System.Predicate<FieldValueCell> delegate that defines which cells should be split, and pass it as the match parameter. You also need to create a set of FieldValueSplitData objects. Each of them identifies a single new cell, from the leftmost to the rightmost (for column cells), or from the topmost to the bottommost (for row cells). Specify the size and values of the new cells using the FieldValueSplitData.NestedCellCount and FieldValueSplitData.Value properties, respectively, and pass the created objects as the cells parameter. The FieldValueSplitData.NestedCellCount property defines the size of a newly created cell by specifying the number of cells nested in it.

pivotgrid_splitdata

Examples

The following example demonstrates how to split field value cells.In this example, the Grand Total column header is split into two cells: Price and Count. To do this, the CustomFieldValueCells event is handled, and the event parameter's Split method is used. Cells that should be split are identified by a predicate that returns true for those cells. The quantity, size and captions of newly created cells are specified by an array of cell definitions (the FieldValueSplitData objects).

using System.Data;
using DevExpress.XtraPivotGrid;

namespace XtraPivotGrid_SplittingCells {
    public static class PivotHelper {
        public const string Employee = "Employee";
        public const string Widget = "Widget";
        public const string Month = "Month";
        public const string RetailPrice = "Retail Price";
        public const string WholesalePrice = "Wholesale Price";
        public const string Quantity = "Quantity";
        public const string Remains = "Remains";

        public const string EmployeeA = "Employee A";
        public const string EmployeeB = "Employee B";
        public const string WidgetA = "Widget A";
        public const string WidgetB = "Widget B";
        public const string WidgetC = "Widget C";

        public static void FillPivot(PivotGridControl pivot) {
            pivot.Fields.Add(Employee, PivotArea.RowArea);
            pivot.Fields.Add(Widget, PivotArea.RowArea);
            pivot.Fields.Add(Month, PivotArea.ColumnArea).AreaIndex = 0;
            pivot.Fields.Add(RetailPrice, PivotArea.DataArea);
            pivot.Fields.Add(WholesalePrice, PivotArea.DataArea);
            pivot.Fields.Add(Quantity, PivotArea.DataArea);
            foreach (PivotGridField field in pivot.Fields) {
                field.AllowedAreas = GetAllowedArea(field.Area);
            }
            pivot.OptionsView.RowTotalsLocation = PivotRowTotalsLocation.Far;
            pivot.OptionsView.ColumnTotalsLocation = PivotTotalsLocation.Far;
            pivot.OptionsDataField.Area = PivotDataArea.ColumnArea;
            pivot.OptionsDataField.AreaIndex = 1;
        }
        static PivotGridAllowedAreas GetAllowedArea(PivotArea area) {
            switch (area) {
                case PivotArea.ColumnArea:
                    return PivotGridAllowedAreas.ColumnArea;
                case PivotArea.RowArea:
                    return PivotGridAllowedAreas.RowArea;
                case PivotArea.DataArea:
                    return PivotGridAllowedAreas.DataArea;
                case PivotArea.FilterArea:
                    return PivotGridAllowedAreas.FilterArea;
                default:
                    return PivotGridAllowedAreas.All;
            }
        }
        public static DataTable GetDataTable() {
            DataTable table = new DataTable();
            table.Columns.Add(Employee, typeof(string));
            table.Columns.Add(Widget, typeof(string));
            table.Columns.Add(Month, typeof(int));
            table.Columns.Add(RetailPrice, typeof(double));
            table.Columns.Add(WholesalePrice, typeof(double));
            table.Columns.Add(Quantity, typeof(int));
            table.Columns.Add(Remains, typeof(int));
            table.Rows.Add(EmployeeA, WidgetA, 6, 45.6, 40, 3);
            table.Rows.Add(EmployeeA, WidgetA, 7, 38.9, 30, 6);
            table.Rows.Add(EmployeeA, WidgetB, 6, 24.7, 20, 7);
            table.Rows.Add(EmployeeA, WidgetB, 7, 8.3, 7.5, 5);
            table.Rows.Add(EmployeeA, WidgetC, 6, 10.0, 9, 4);
            table.Rows.Add(EmployeeA, WidgetC, 7, 20.0, 18.5, 5);
            table.Rows.Add(EmployeeB, WidgetA, 6, 77.8, 70, 2);
            table.Rows.Add(EmployeeB, WidgetA, 7, 32.5, 30, 1);
            table.Rows.Add(EmployeeB, WidgetB, 6, 12, 11, 10);
            table.Rows.Add(EmployeeB, WidgetB, 7, 6.7, 5.5, 4);
            table.Rows.Add(EmployeeB, WidgetC, 6, 30.0, 28.7, 6);
            table.Rows.Add(EmployeeB, WidgetC, 7, 40.0, 38.3, 7);
            return table;
        }
    }

}
See Also