Unbound Rows
ASPxVerticalGrid supports bound and unbound rows. Bound rows obtain their data from a control’s data source. Unbound rows are not bound to any field in a data source. These rows can be populated manually by handling the ASPxVerticalGrid.CustomUnboundRowData event or by specifying an expression by the VerticalGridDataRow.UnboundExpression used to evaluate values for this field. The Expressions section describes the syntax for creating expressions.
There is no difference between working with bound and unbound rows. You can sort, filter, display summaries and filter unbound rows in the same manner as bound rows.