grdAccessories.enableEditEvents(false, false, false);
The above code, I can control the whole grid is edit mode.
But I want to ask I want a one grid cell can be edit mode ?
In this case you need to use onEditCell event.
For example:
grid.attachEvent("onEditCell", function(stage,rId,cInd,nValue,oValue){
if(rId==row_id && cInd==coolumn_ind){
return true
}
else return false
});