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Docs > Controls and Libraries > Data Grid > Examples > Summaries > How to: Calculate Single Total Summary for Grid's Column
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Examples: Calculating Summaries
How to: Add Multiple Total Summaries for Column
How To: Calculate Custom Summaries Based on Column Summary Items
How to: Calculate Single Total Summary for Grid's Column
How to: Create Group Summaries
How to: Sort Group Rows by Summary Values
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How to: Calculate Single Total Summary for Grid's Column

The example demonstrates how to calculate a single total summary for a grid column via the GridColumn.SummaryItem property.

Adding Single Summary Item

colUnitsInStock1.SummaryItem.SummaryType = DevExpress.Data.SummaryItemType.Average;
colUnitsInStock1.SummaryItem.DisplayFormat = "Average = {0:n2}";