Aras Innovator客户端批量下载关联文件

<button onclick="btnDownload();" >批量下载关联文件</button>
<script type="text/javascript">
function btnDownload()
{
var cadId=document.thisItem.getAttribute("id");
if(cadId!=undefined)
{ 
var inn=top.aras.newIOMInnovator();
var cadstr=inn.applyAML("<AML><Item type='CAD File' action='get' select='id,related_id'><source_id>"+cadId+"</source_id></Item></AML>");
var cadsum=cadstr.getItemCount();
for(var i=0;i<cadsum;i++)
{
var subcad=cadstr.getItemByIndex(i).getRelatedItem();
var subfile=undefined;
nativeid=subcad.getID();
if(nativeid!=undefined){subfile=top.aras.getItemById("File",nativeid);top.aras.downloadPhysicalFileTo(subfile,top.aras.getWorkingDir(false,window),window);}
}
}
}
</script>