jqgrid-treeView动态加载

$gridList.dataGrid({
treeGrid: true,
treeGridModel: "adjacency",
ExpandColumn: "fileType",
url: "/ArchivesManage/DocCategorization/GetTreeGridJson",
height: $(window).height() - 96,
colModel: [
{ label: "主键", name: "F_Id", hidden: true, key: true },
{ label: '文档分类名称', name: 'fileTypeName', width: 250, align: 'left' },
{ label: '文档类型', name: 'fileType', width: 100, align: 'left' },

{
label: '建设单位归档', name: 'buildUnit', width: 150, align: 'left',
formatter: function (cellvalue) {
return top.clients.dataItems["ArcPreservation"][cellvalue] == undefined ? "" : top.clients.dataItems["ArcPreservation"][cellvalue]
}
},
{
label: '设计单位归档', name: 'designUnit', width: 150, align: 'left',
formatter: function (cellvalue) {
return top.clients.dataItems["ArcPreservation"][cellvalue] == undefined ? "" : top.clients.dataItems["ArcPreservation"][cellvalue]
}
},
{
label: '施工单位归档', name: 'constructionUnit', width: 150, align: 'left',
formatter: function (cellvalue) {
return top.clients.dataItems["ArcPreservation"][cellvalue] == undefined ? "" : top.clients.dataItems["ArcPreservation"][cellvalue]
}
},
{
label: '监理单位归档', name: 'supervisionUnit', width: 150, align: 'left',
formatter: function (cellvalue) {
return top.clients.dataItems["ArcPreservation"][cellvalue] == undefined ? "" : top.clients.dataItems["ArcPreservation"][cellvalue]
}
},
{
label: '城建、档案馆', name: 'Archive', width: 150, align: 'left',
formatter: function (cellvalue) {
return top.clients.dataItems["ArcPreservation"][cellvalue] == undefined ? "" : top.clients.dataItems["ArcPreservation"][cellvalue]
}
}
],

});
如何实现点击父节点加载子节点内容

我的时间是 14:14，你都已经14:15了