Is it possible to bypass sorting of localdata when using grouping in jqgrid?
datatype: 'local',
data: mydata,
rowNum: 10,
rowList: [10, 20,30,40],
pager: '#pager',
gridview: true,
sortname: 'invdate',
viewrecords: true,
grouping: true,
groupingView: {
    groupField: ['name'],
    groupSummary: [true],
    groupColumnShow: false,
    groupText: ['<b>{0}-{1} items</b>'],
},
editurl: 'clientArray'