jQuery Grid Plugin - jqGrid

If I make a column editable, and use edit rules to require it to be a number

{ name: 'Value', index: 'Value', width: 50, sortable: true,edittype: 'text',

                            editable: true, editoptions: { maxlength: 10 },

                            editrules:{number: true},

                            formatter:currencyFmatter, unformat:unformatCurrency },

and I control editing and saving in the onSelectRow event:

onSelectRow: function(id){

if(id && id!==lastSel){

jQuery("#Groups").saveRow(lastSel,true,'clientArray');      jQuery("#Groups").editRow(id,true);

                      } 

lastSel=id

},

I then use a button click event to save the grid. Everything works great untill I put a non-numeric value into the Value cell then click on the row below it.  It throw as warning box up and stop the save, but it does not stop me from changing rows.  So I now have two rows open for editing.  Is there a way to trap the editrule error so I can handle it before moving to the next row. 

I have tried to use the functions with saveRow (succesfunc, aftersavefunc, errorfunc, afterrestorefunc), of which all say fire after data is saved to server, which does not appear to work for ‘clientArray’.

Basically, I need to find a way to validate the data in inline editing when saved to ‘clientArray’  and information, suggestions, and particularly, examples would be greatly appreciated.

Thanks.