treeGrid新增数据，保存后怎么自动展开该节点路径

white_star

新增节点，ajax返回函数，此处reload后，下一行selectNode获取是undefinedsuccess: function (result) {
    let tgrid = mini.get("dept_treetable");
    treeGrid.reload();
    let selectNode = tgrid.getSelectedNode()
    tgrid.expandPath(selectNode);
}
但是相同的代码，在这里，selectNode能获取到，并且展开节点路径
success: function (result) {
    mini.get(loading).destroy();
    let tgrid = mini.get("areaTreeGrid");
    tgrid.reload();
    let selectNode = tgrid.getSelectedNode()
    tgrid.expandPath(selectNode);
}
准备改成这样，应该怎么获取到新增的这条数据，并且展开该节点路径
treeGrid.on("load", function (sender) {
    let selectNode = treeGrid.getSelectedNode()
    treeGrid.expandPath(selectNode);
})

felt

1. var selectId = "";
   
2. tree.on("select", function (e) {
   
3.     if (e.record) {
   
4.         var id = e.sender.idField;
   
5.         selectId = e.record[id];
   
6.     }
   
7. })
   
8. tree.on("load", function (sender) {
   
9. 
   
10.     var node= tree.getNode(selectId);
    
11.     tree.expandPath(node);
    
12. })

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