DataGrid for WPF includes the C1.WPF.DataGrid.Summaries.dll assembly which can enhance the grid by adding a summary row.

The Summaries assembly contains the following features:

• SummaryRow: a row that shows the aggregate functions corresponding to each column (See C1DataGrid_Demo2010/Grouping/GrandTotal.xaml)
• GroupRowWithSummaries: the same as the previous one but the summaries are shown in the group row rather than a regular row. (See C1DataGrid_Demo2010/Grouping/Grouping.xaml)