nodes

问题 I actually have a custom-built UserControl similar to a TreeView. The only thing it's missing is the CollapseAll() method from a TreeView, so I'm looking to either a) find the source code for the CollapseAll method so I can copy it, or b) manually (and recursively) iterate through all the child nodes of a selected node and collapse them. Here is my current collapse method: private void OnNodeCollapsed(TreeNode node) { foreach(FileSystemNode n in node.Nodes) { if(n.NodeType !=

问题 I'm having a hard time trying to get a Treeview to display child notes. I have a DataTable which is filled with Data from a query. The table is something like this. | ParentOT | ChildOT ------------------- 1 | 2 1 | 3 1 | 4 4 | 5 5 | 6 now, what I need is to order this data in a TreeView. The result must be something like this (using this same table) 1 | --2 | --3 | --4 | --5 | --6 I tried to this on Windows Forms and the only thing I can get is the tree to show only 1 set of childs. like

问题 Updated: question is incorrect because of low knowledge of the subject. Sorry. I'm trying to create a small application that shows a graph that contains nodes and connections between them. Both nodes and connections are complex, I mean they can have another components in it, like labels. I have a big Pane which plays a canvas role. I'm going to add and remove elements from it. The problem is that I want to add or remove graph elements dynamically, using buttons or context menu. Sort of Paint

问题 i have folowing XML structure: <root> <product> <name> <book1>data for book1</book1> <book12>data for book12</book12> <book13>data for book13</book13> <book14>data for book14</book14> </name> <info> <data1>data for data1</data1> <data2>data for data2</data2> <data3>data for data3<data3> <data4>data for data4</data4> <data5>data for data5</data5> <data n+1>data n+1</data n+1> </info> <pictures> <pic1>data for pic1</pic1> <pic2>data for pic2</pic2> <pic3>data for pic3</pic3> <pic4>data for pic4

问题 I am implementing the add(E) method in the cyclic DoublyLinkedList class as well as the Node inner class. Node should be implemented as a private inner class. DoublyLinkedList's "first" attribute should point to the first node in the list. Its "size" attribute should store the number of elements in the list. I am struggling on my add method, because it feels like nothing is wrong and I don't know what else I can add this this code that can fix it. Therefore a brief introduction on what the

问题 Please let me know the code syntax how to use Node.childNodes from the documentation http://docs.python.org/library/xml.dom.html#module-xml.dom I am beginner to python and selenium. I have tried using: elem = self.browser.find_element_by_id("pie4") x = elem.childNodes print x I have also tried: self.dom.getElementsByTagName('path')[0].firstChild.data But both fail. 回答1: elem is WebElement. You could use elem.find_elements_by_xpath() to select relevant child elements e.g.: #!/usr/bin/env

问题 I need to know the order of the nodes and the scores for each one, once I have ran the decision tree model. As I'm working in my office computer, the installations are very restricted and I'm not allowed to download graphviz nor pydotplus. It doesn't matter that there is no graphic representation of the model; I just want to know the classification order/process the algorithm is using. I'm using sklearn.tree , sklearn.metrics , and sklearn.cross_validation . 回答1: You can make use of plot_tree

问题 I'm building a page that first gets the HTML data from an external page (Not cross domain), then after the first function completes, it runs a function which is a sideshow. It works... More or less... The problem that I'm having is that after 5 or 6 slides, the whole thing gets messy and then everything disappears. When checking the console, I found the following message: Uncaught DOMException: Failed to execute 'insertBefore' on 'Node': The new child element contains the parent. at

问题 This question is about attempting to model interdependent networks with NetworkX. There are dedicated packages (such as Pymnet), but they don't seem as flexible as NetworkX. And by the way, I wanted to give NetworkX one last chance. So, let's say we have 2 separate graphs, G1 and G2, which we plot in the same figure: import networkx as nx import matplotlib.pyplot as plt G1=nx.barabasi_albert_graph(3, 2) #n=3, m=2 (number of initial links) G2=nx.barabasi_albert_graph(3, 2) pos1=nx.spring

问题 Background: I have a angular-cli running on port 4200, and server sided api node.js running on 3000. I find out that the session passport value wont save after logging in with the passport-local. so when i try to navigate to another page after logging in, its not holding the passport, variable in sessions as it is supposed to, required to call req.user For some reason, the server is not calling deserialize user. Req.user wont work after login and redirecting to page /test. Update: To login i