true, to allow end-users to group data; otherwise, false.
This documentation topic describes legacy technology. We no longer develop new functionality for the GridControl and suggest that you use the new DataGridView control instead.
End-users can group data or remove grouping applied in the grid by tapping the corresponding item in a menu that appears when they touch and hold a column. If the AllowGroup property is set to true, menu items related to grouping are available. Otherwise, end-users cannot group data.
To override the default behavior specified by the grid's AllowGroup property for an individual column, use the GridColumn.AllowGroup property of the corresponding column object.