Hello ,
i am using dhtmlx grid table. and set one coulmn as combolist.
but when i opens same form from android device then options under combolist is not displaying.
Please, try to set the single click as the action for the editing in your grid:
https://docs.dhtmlx.com/api__dhtmlxgrid_enableeditevents.html
Like:
myGrid.enableEditEvents(true,false,true);