Sorting by Summary

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Sorting by Summary allows you to sort the current column or row field's values by corresponding summary values.

The following image illustrates the Pivot Grid Control with Product field values sorted by the USA | Margaret Peacock | Quantity column:

pivotgrid_sortbysummary

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Demo: Sort By Summary

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End-User Sorting by Summary

End-users can sort by summary through the context menu by right-clicking an innermost column or row header.

pivotgrid_sortbysummary

The SortBySummaryIndicator_Down and SortBySummaryIndicator_Up image in the row's/column's header indicates if the field values are sorted by this row/column.

Sorting by Summary is available for all fields displayed within the Column Header Area or Row Header Area. There are two ways you can disable this functionality for end-users:

Property Description Note
PivotGridControl.AllowSortBySummary Gets or sets whether end-users can sort the row/column field values by other column/row summary values. This is a dependency property. This property affects all fields.
PivotGridField.AllowSortBySummary Gets or sets whether end-users can sort the current row/column field values by other column/row summary values. This is a dependency property. This property affects individual fields.

Note that in this instance, individual fields' settings take priority over PivotGridControl settings.

Sorting by Summary in Code

To sort data by summaries, you need to specify a data field whose summary values should define the sort order. Do one of the following:

  • Assign the data field to the PivotGridField.SortByField property.

    This allows you to sort data by the currently displayed summary values.

    fieldProductName.SortByField = fieldExtendedPrice;
    
  • Assign the data field name to the PivotGridField.SortByFieldName property.

    In this instance, data is sorted by summary values calculated with the function whose type the PivotGridField.SortBySummaryType property specifies, regardless of which summary values are currently displayed.

    For example, the code sample below displays sorting by the average of the Extended Price's values:

    fieldProductName.SortBySummaryType = FieldSummaryType.Average;
    fieldProductName.SortByFieldName = "Extended Price";
    

After you specified a data field, the PivotGrid control sorts field values by a Grand Total column/row that corresponds to this data field.

The image below shows the Pivot Grid sorted by the Extended Price's Grand Total values:

wpf-pivot-sort-by-summary-grand-total

To sort field values by any other column/row or their totals, identify this field by adding sorting conditions using the PivotGridField.SortByConditions property. Each condition is a SortByCondition object that identifies a field value so that the whole collection identifies a column/row.

Create two sort conditions to sort field values by the Qtr 2 Total column total.

fieldProductName.SortBySummaryField = fieldExtendedPrice;
fieldProductName.SortByConditions.Add(new SortByCondition(fieldYear, 2016));
fieldProductName.SortByConditions.Add(new SortByCondition(fieldQuarter, 2));

The image below demonstrates the corresponding result:

wpf-pivot-sort-by-summary-2-conditions

Create an additional condition to sort data by the specified column/row:

fieldProductName.SortBySummaryField = fieldExtendedPrice;
fieldProductName.SortByConditions.Add(new SortByCondition(fieldYear, 2016));
fieldProductName.SortByConditions.Add(new SortByCondition(fieldQuarter, 2));
fieldProductName.SortByConditions.Add(new SortByCondition(fieldMonth, 5));

Three sort conditions identify the highlighted column on the image below:

pivotgrid_SortByCondition

You can sort data by a custom total column/row by specifying its type using the PivotGridField.SortByCustomTotalSummaryType property.

Use the PivotGridField.SortOrder property to specify whether to sort values in ascending or descending order.

Sorting in OLAP

In an OLAP mode, create sort conditions via a SortByCondition constructor overload that takes an OLAP member's unique name as a parameter.

To obtain an OLAP member for a field value, use the PivotGridControl.GetFieldValueOlapMember method. This method returns a PivotOlapMember object. To access the OLAP member's unique name, use its PivotOlapMember.UniqueName property.

Limitations

The following Pivot Grid features are not supported or ignored when you sort data by summary:

Examples