jQuery Grid Plugin - jqGrid

I create griw with this colmodel

    colModel :[
      {name:'data1', index:'data1', width:70, editable:false, edittype:'text', editrules:{required:true}, resizable: false},
    
      {name:'data2', index:'data2', width:110, editable:true, edittype:'select', editoptions: { dataUrl: 'ajax_data2.php' }, editrules:{required:true}, resizable: false},

      {name:'data3', index:'data3', width:100, editable:true, edittype:'select', editoptions: { dataUrl: 'ajax_fuel.php' }, editrules:{required:true}, resizable: false},

{name:'data4', index:'data4', width:100, align:'right', editable:true, edittype:'text', editoptions: {size: 15, maxlength: 15,defaultValue: function(){ return '0';}}, editrules:{number:true, minValue: 1, required:true}, resizable: false, formatter:'number'},
     ...

Also i have this function to onselectrow event to save last edited row

    onSelectRow: function(id){
        if(id && id!==lastsel2){
            jQuery('#list').saveRow(lastsel2).trigger("reloadGrid");
            }
            lastsel2=id;
        }
    },

When i edit inline some row, and for example the data in data4 are incorect for example 0, i see error modal box Data4: Field is required.

Unfortunetly after this last edit line was unselected and go to normal mode. Is it possible to stay row in edit mode, until the data in the row are correct, and it can be saved in grid and ajax?