jQuery Grid Plugin - jqGrid

Hi, I have a similar problem with the 'filterToolbar'. In my case, the code is as follows:

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var TRepairsData.repairGrid = jQuery("#RepairList");

TRepairsData.repairGrid.jqGrid({

url:'/Dedalo.API/Repairs/GetPaginatedRepairsList/' + SelectedOffice + '/',

datatype: "json",

autowidth: true,             

jsonReader : {

repeatitems: false,

},

colNames: ['Priority'],

colModel: [{ name: 'Priority', index: 'priority', width: 45, align: "center",

searchoptions: { defaultValue: '0' }

}

],

rowNum:100,

rowList:[100, 150, 200],

mtype: "GET",

multiselect: true,

caption: false,

pager: '#navRepair',

viewrecords: true, 

sortname: 'incdate', 

sortorder: 'desc',

gridComplete: function(){ ...}

});

TRepairsData.repairGrid.jqGrid('filterToolbar', { defaultSearch: "cn" });

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I need to load the page, my grid is filtered with the default priority. Priority to changing the filter housing makes me a call to the server by passing the url indicated and the priority value you have written, that it is functioning properly, but I need to filter me from the start with the default, This may be the problem?

Sorry for my English

Thanks!