jQuery Grid Plugin - jqGrid

hi Guys,

 

I would like to implement a custom search dialog with 2 select filters and reload the options of the 2nd select when the 1st one is changing. 

I thought I should define searchoption and dataEvents, e.g.:

filterModel: [
    { label: 'Country: ', name: 'Country', stype: 'select', defval: '-', surl: '/static/countrylist',
        searchoptions: {
            dataEvents: [{
                type: "change",
                fn: function(e) {
                    alert('changed');
                }
            }]
        }

    }

but based on the documentation :"The searchoptions are not applicable to custom search method. This method uses separate options."

 

could you please let me know how I can use this feature in custom search?

 

thanks!