WinForms Data Grid - Add custom data rows

This example demonstrates how to display custom rows (ordinal, blank/group, and summary) in the WinForms Data Grid. Custom rows do not exist in the grid's data source. Custom rows support data editing, sorting, and grouping.

The example creates a data source wrapper and handles the following events:

• The CustomColumnSort event is handled to display custom rows at the specified position regardless of sorting.
• The ShowingEditor event is handled to prevent editing blank and summary custom rows.
• The CustomColumnGroup event is handled to group custom rows. The CustomDrawGroupRow event is handled to display text within a custom group row.

See Also

• WinForms Lookup - Add an empty item to the dropdown list