<select id="iweekDay" class="col-sm-4 form-control easyui-combobox " name="state" data-options="multiple:true,multiline:true" style="width:350px;height:35px" >
<option value="1">1</option>
<option value="2">2</option> 
<option value="3">3</option> 
<option value="4">4</option> 
<option value="5">5</option> 
<option value="6">6</option> 
<option value="7">7</option> 
</select>

$('#Id').combobox('setValue','key')

$('#Id').combobox('getValue')

var str=$('#Id').combobox('getValues').join(",");

// Redefine the banner
var storeName_value = '@ViewBag.StoreName';
var department_value = '@ViewBag.Department';
var changeDate_value = '@ViewBag.ChangeDate';
$('#StoreName option:selected').text(storeName_value); 
$('#Department option:selected').text(department_value);
//$('#StoreName').combobox('setValue', storeName_value);
//$('#Department').combobox('setValue', department_value);
// bind searchBtn
$('#this_submit').bind('click', function () {
// var st = $('#StoreName option:selected').text().trim();
// var dep = $('#Department option:selected').text().trim();
var st = $('#StoreName').combobox('getValue');
var dep = $('#Department').combobox('getValue');
var changeDate = $('#datepicker').val();
var href = '../';
href += '&storeName=' + st + '&department=' + dep + '&changeDate=' + changeDate;
href += '&page=1&size=8';
window.location.href = href;
});