jqGrid subGrid配置 如何首次加载动态展开所有的子表格

jQuery(document).ready(function(){ 
  jQuery("#list").jqGrid({
    url:‘example.php‘,
    datatype: ‘xml‘,
    mtype: ‘GET‘,
    colNames:[‘Inv No‘,‘Date‘, ‘Amount‘,‘Tax‘,‘Total‘,‘Notes‘],
    colModel :[ 
      {name:‘invid‘, index:‘invid‘, width:55}, 
      {name:‘invdate‘, index:‘invdate‘, width:90}, 
      {name:‘amount‘, index:‘amount‘, width:80, align:‘right‘}, 
      {name:‘tax‘, index:‘tax‘, width:80, align:‘right‘}, 
      {name:‘total‘, index:‘total‘, width:80, align:‘right‘}, 
      {name:‘note‘, index:‘note‘, width:150, sortable:false} 
    ],
    pager: ‘#pager‘,
    rowNum:10,
    rowList:[10,20,30],
    sortname: ‘invid‘,
    sortorder: ‘desc‘,
    viewrecords: true,
    caption: ‘My first grid‘,
    subGrid: true,
    subGridUrl : "subgrid.php",

subGridOptions: {

plusicon: "ace-icon fa fa-plus center bigger-110 blue",
minusicon: "ace-icon fa fa-minus center bigger-110 blue",
openicon: "ace-icon fa fa-chevron-right center orange",
expandOnLoad: true,
selectOnExpand : false,
reloadOnExpand : false
},

onSelectRow: function (rowid, status, e) {
selectOptId = rowid;
console.log(‘selectOptId--:‘ + rowid);
//$("#grid-table").expandSubGridRow(rowid); 都可以
$("#grid-table").jqGrid (‘expandSubGridRow‘, rowid);
},

    subGridModel : [ 
      {
      name  : [‘No‘, ‘Item‘, ‘Qty‘, ‘Unit‘, ‘Line Total‘],
      width : [55, 200, 80, 80, 80],
      align : [‘left‘,‘left‘,‘right‘,‘right‘,‘right‘],
      params: [‘invdate‘] 
      }
    ]
  }); 
}); 

<?php
// get the id passed automatically to the request
$id = $_GET[‘id‘]; 
// get the invoice date passed to this request via params array in
//subGridModel. We do not use it here - this is only demostration
$date_inv = $_GET[‘invdate‘];
 
        suboptions = {
            plusicon : "ui-icon-plus",
            minusicon : "ui-icon-minus",
            openicon: "ui-icon-carat-1-sw",
            expandOnLoad:  false,
            delayOnLoad : 50,
            selectOnExpand : false,
            reloadOnExpand : true
        };
 
// connect to the database 
$db = mysql_connect($dbhost, $dbuser, $dbpassword) or die("Connection Error: " . mysql_error()); 
 
mysql_select_db($database) or die("Error conecting to db."); 
 
// construct the query        suboptions = {
            plusicon : "ui-icon-plus",
            minusicon : "ui-icon-minus",
            openicon: "ui-icon-carat-1-sw",
            expandOnLoad:  false,
            delayOnLoad : 50,
            selectOnExpand : false,
            reloadOnExpand : true
        };
 
$SQL = "SELECT item_num, item, qty, unit FROM invlines WHERE invid=".$id." ORDER BY item"; 
$result = mysql_query( $SQL ) or die("Couldn?t execute query.".mysql_error()); 
 
// set the header information
if ( stristr($_SERVER["HTTP_ACCEPT"],"application/xhtml+xml") ) { 
            header("Content-type: application/xhtml+xml;charset=utf-8"); 
} else { 
            header("Content-type: text/xml;charset=utf-8"); 
} 
 
echo "<?xml version=‘1.0‘ encoding=‘utf-8‘?>"; 
echo "<rows>"; 
// be sure to put text data in CDATA 
while($row = mysql_fetch_array($result,MYSQL_ASSOC)) { 
            echo "<row>"; 
            echo "<cell>". $row[item_num]."</cell>"; 
            echo "<cell><![CDATA[". $row[item]."]]></cell>"; 
            echo "<cell>". $row[qty]."</cell>"; 
            echo "<cell>". $row[unit]."</cell>"; 
            echo "<cell>". number_format($row[qty]*$row[unit],2,‘.‘,‘ ‘)."</cell>"; 
            echo "</row>"; 
} 
echo "</rows>";
 
?>