Hi,
are you using the NG Data Grid or the NG Power Grid ?
If you are using the Power Grid you can add this property in the gridOptions
groupDefaultExpanded : -1
The index -1 indicate expand all; you can set the index to 1 to let expand only the first group.
Hiding the group icon could be achieved via stylying.
e.g.
- Code: Select all
.ag-row .ag-group-expanded, .ag-row .ag-group-contracted {display: none;}