Docked rows are simple data rows that can be docked on top or bottom at any hierarchical level. Such rows don’t depend on data sorting direction and constantly stay on their fixed positions. This feature is useful when you need to display important information, e.g. an average value or a total, or when you need to create a row that acts as a filter (drop-down boxes containing value ranges).
In programming, docking is accessible via Row.Dock property. Programmer may specify multiple docked rows. If your data grid already has docked rows, the next docked row will be placed after the previously docked row and before the first non-docked row. Docked rows can also be filtered or grouped as any other data rows.