dynatree的延迟加载 [英] Lazy Loading in dynatree

问题描述

在此组件中 http://wwwendt.de/tech/dynatree/index.html

在5.4下按需加载子节点(延迟加载")

under 5.4 Loading child nodes on demand ('lazy loading')

看来，以惰性方式加载树节点的唯一方法是从Web服务中获取它们.如果我想从数据结构中获取节点怎么办?

it seems that the only way to load the tree nodes in a lazy manner is to grab them from web service. What if I want to grab the nodes from a data structure?

例如:

onLazyRead: function(dtnode){

                dtnode.appendAjax({
                   //url: "sample-data2.json" 
                   //grab the nodes here from array
                });
  }

有什么建议吗? 另一个问题:当执行onLazyRead时，是否会再次重新渲染整个树?

Any advice? Another question: when onLazyRead is executed, does the whole tree get re-rendered again?

推荐答案

您可以使用

dtnode.addChild(dict);

代替

.appendAjax(...)

无论哪种情况，都只应渲染已更改的节点.

In either case, only the changed nodes should get rendered.

dict的格式必须类似于JSON响应.您可以使用toDict()方法从给定的树或节点生成dict.

dict must be formatted like the JSON response. You can als generate dict from a given tree or node using the toDict() method.

这篇关于dynatree的延迟加载的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！