Hi Patrick,
Thanks for using syncfusion Products.
Yes, It is possible to show down arrow icon If cell type=”Combo Box”. We too designed Grid Control like that. Always, Down arrow icon is shown in the right corner of the cell even no need to click on the cell.
Please make sure that.
Please visit the this link.
CellType_ComboBox.zipCombobox CellsLet us know if you need any other details.
Regards,
Habeeb