| Name | Description | |
|---|---|---|
 | append | Specifies whether to append this column to the existing grouping or to create a new grouping. |
| column | Specifies the index of the column dropped on the grouping bar. |
| dragFromGroupBar | Specifies whether the user drags a box from the group bar. |
| prevDataModel | Specifies the previous data model. |
| prevSortInfo | Specifies the previous sort information. |
| sheetView | Specifies the sheet that contains the column. |
| targetColumn | Specifies the target column location, if dragFromGroupBar is true. |