//当查询IT基础设施的时候隐藏'STAFF_ID'、'ITSM_STAFF_ID'

    if($("input[name='currentstate']").val()==2){

        $('#ordertable').datagrid('hideColumn','STAFF_ID');

        $('#ordertable').datagrid('hideColumn','ITSM_STAFF_ID');
    }else{

        $('#ordertable').datagrid('showColumn','STAFF_ID');

　　     $('#ordertable').datagrid('showColumn','ITSM_STAFF_ID');

    }

    // 清空选中行

    SERVICEDATAGRID.datagrid('clearSelections');