# Summaries | WinForms Controls | DevExpress Documentation

Topics in this section describe how the [PivotGridControl](/WindowsForms/DevExpress.XtraPivotGrid.PivotGridControl) calculates [data cell](/WindowsForms/1681/controls-and-libraries/pivot-grid/ui-elements/cell) values (**summaries**), how to access these values and how to define the way in which they are calculated.

The following topics are available.

- [Summaries Overview](/WindowsForms/1812/controls-and-libraries/pivot-grid/data-shaping/summarization/summaries/summaries-overview)

      Provides general information about summary values.
- [Automatic Summaries](/WindowsForms/9390/controls-and-libraries/pivot-grid/data-shaping/summarization/summaries/automatic-summaries)

      Provides information about automatically calculated summary values.
- [Custom Summaries](/WindowsForms/9391/controls-and-libraries/pivot-grid/data-shaping/summarization/summaries/custom-summaries)

      Shows how to implement a custom procedure used to calculate summary values.
- [Summary Display Types](/WindowsForms/1935/controls-and-libraries/pivot-grid/data-shaping/summarization/summaries/summary-display-modes)

      Demonstrates how to display correlations between different summary values, instead of displaying raw summaries.
- [Accessing Cell Values](/WindowsForms/1925/controls-and-libraries/pivot-grid/data-shaping/summarization/summaries/accessing-cell-values)

      Shows how to access summary values in code.
- [Obtaining Underlying Data (Drill-Down)](/WindowsForms/1882/controls-and-libraries/pivot-grid/data-shaping/summarization/summaries/obtaining-underlying-data-drill-down)

      Provides information on how to obtain underlying data source’s records that were used to calculate particular summary values.