I have tried to add a class through editoptions but every time I do the grid no longer shows. Can someone help

……

{name:'amount',index:'amount',width:60,
align:”right”,editable:true,editoptions:{size:20,class:'charge'}},

…..

In fact I can't seem to set any variables in editoptions

editoptions:{size:'10px'} doesn't set the field size to 10px

Roo