当我们操作treeview的时候,新增节点,如果成功则新增node,如果失败的话我们不想node还显示出来,可以通过监听sync的failure事件,失败时候移除node,但是第一次肯定达到了预期效果,这时候如果我们再新增一个node,也是失败的情况,就会触发两个事件,一个是本次的node add,另一个是上次的node delete. http://docs.sencha.com/extjs/4.2.2/#!/api/Ext.data.NodeInterface-method-remove A
Find the maximum node in a binary tree, return the node. Example Given a binary tree: 1 / \ -5 2 / \ / \ 0 3 -4 -5 return the node with value 3. public class Solution { /** * @param root the root of binary tree * @return the max ndoe */ public TreeNo
Find the maximum node in a binary tree, return the node. Example Given a binary tree: 1 / \ -5 2 / \ / \ 0 3 -4 -5 return the node with value 3. 解法一: class Solution { public: /** * @param root the root of binary tree * @return the max node */ TreeNod
Given a binary search tree and a new tree node, insert the node into the tree. You should keep the tree still be a valid binary search tree. Example Given binary search tree as follow: 2 / \ 1 4 / 3 after Insert node 6, the tree should be: 2 / \ 1 4
Given a binary search tree and a new tree node, insert the node into the tree. You should keep the tree still be a valid binary search tree. Notice You can assume there is no duplicate values in this tree + node. Example Given binary search tree as
Tree 数据转换 所有节点都包含以下属性: id:节点id,这个很重要到加载远程服务器数据 which is important to load remote data text: 显示的节点文本 state: 节点状态, 'open' 或者 'closed', 默认是 'open'. 当设置为 'closed', 节点所有的子节点将从远程服务器站点加载 checked: 指明检查节点是否选中. attributes: 可以添加到节点的自定义属性 children: 一个节点数组,定义一些子节
Tree 数据转换 所有节点都包含以下属性: id:节点id,这个很重要到加载远程服务器数据 which is important to load remote data text: 显示的节点文本 state: 节点状态, 'open' 或者 'closed', 默认是 'open'. 当设置为 'closed', 节点所有的子节点将从远程服务器站点加载 checked: 指明检查节点是否选中. attributes: 可以添加到节点的自定义属性 children: 一个节点数组,定义一些子节