I have a tree in my database described using id and parend id. Because of historical( original programmer) reasons the id is strings. I need to convert the id to auto increment integer field and keep the structure the same. How do I do that? I'm using mysql. ...
Is there a good available (standard Java) data structure to represent a tree in Java? Specifically I need to represent the following: The tree at any node can have an arbitrary number of children Each node (after the root) is just a String (who's children are also strings) I need to be able to get all the children (some sort of list /...
I have multiple -- for this discussion, assume two -- dijit.trees, all guaranteed to have identical topology. The first tree is the master; all the others are slaves. I want to: 1) Hide the expando +/- thiny on all the slaves, so that only the master has expand/collapse controls. 2) Make the behavior of the slaves trees mimic t...
I have recently managed to get a stack overflow when destroying a tree by deleting its root 'Node', while the Node destructor is similar to this: Node::~Node(){ for(int i=0;i<m_childCount;i++) delete m_child[i]; } A solution that come up into my mind was to use own stack. So deleting the tree this way: std::stack< Node* >...
Hi, I want to create tree structure using web service. I have used bottom up web service technique for creation of simple arithmatic operation. I can not understand, how to build a tree using web services. Is there is way to achieve this? ...
I have a binary tree of some shape. I want to Convert it to BST search tree of same shape. Is it possible? I tried methods like - Do In-order traversal of Binary Tree & put contents into an array. Then map this into a BST keeping in mind the condition (left val <= root <= right val). This works for some cases but faile for others. ...
Hello, I am currently developing a dynamic LineChart in FLEX 4. I am implementing a Tree control next to my LineChart, which will filter the LineChart dataprovider and lineseries. The tree control has several branches and ultimately 5 children (leaf nodes) at the bottom of the last branch. I need the leaf node/children to be displayed ...
I have a tree of objects, where each object has a std::vector of pointers to its children. The class of the object has a rewrite() method that is recursively applied to alter the object and its children, typically with the following transformations, where [N] is the object being rewritten and (M) is the element that rewrite() returns: ...
I was having a look at this question and then reading about Tarjan's least common ancestors algorithm. I never came across any applications of LCA algorithms before. Where are such LCA algorithms commonly used? ...
I've got a XUL tree element, and would like to scroll the rows up and down on a per-pixel basis, instead of by whole rows, if possible. Browsing through the source to mozilla-central, and Thunderbird's copy at comm-central, it looks like I can only scroll by rows, but I guess I'm hoping that I missed something. (The other option I saw ...
Hi guys, What do I have to do with a Tree in WPF/Silverlight, to have all nodes aligned ar the same level? I mean I need the root and all childs to be align at the same distance from the left side of the screen. Is that possible? Actually I am using a Telerik Silverlight RadTreeView. Any help is welcomed, Thanks ...
Is it possible to hide the +/- buttons for an ICEFaces tree node that is a leaf? They still appear on my leaf nodes even when I mark that node specifically as a leaf and say node.setAllowsChildren(false). ...
What I'm trying to do is have a 3 state tree expansion. I have three different icons for "expand" "collapse" "semi-expanded" which I want to use to show a partially populated tree control with all nodes initialized to semi-expanded state and then on clicking the "semi-expanded" icon it gets data from server and populates the tree and op...
Hello, sorry for my english, I have worked in a helper to create an objects tree based in :has_many associations and it's working fine, but I have a problem with links: some objects don't have an edit action to create a link (edit_object_path object_id). How can I to know, if an object has edit action? Regards. ...
Hello, I love BooguNote very much (it's a Sharp tool for collecting and organizing information scraps) But what a pity it just run under windows currently. I tried to build a Java version for BooguNote so I can run it under linux (first step: I want to just make a simple BooguViewer ) since I'm not very familiar with so huge Java libr...
I have created a custom multiline item renderer for mx:Tree component. Important to mention that my item renderer has two UITextFields in it. Sometimes (depends of the input data) only one of UITextFields must be shown, so when second UITextField is not needed I hide it and recalculate the height of my item renderer. According to my test...
Given the simple data structure: ID | Category_Name | Parent_ID Example: 1 Cars 0 2 Boxes 0 3 Lamborghinis 1 4 VW Camper Vans 1 5 Big Boxes 2 6 Small Boxes 2 7 Cereal Boxes ...
Given the simple data structure: ID | Category_Name | Parent_ID Example: 1 Cars 0 2 Boxes 0 3 Lamborghinis 1 4 Camper Vans 1 5 Big Boxes 2 6 Small Boxes 2 7 Cereal Boxes ...
Hi All, I've been trying to get a Tree to work using my xml. But i'm like stuck without any clue as how to move ahead. I've tried quite a few things, which i've tried and would mention here. Background: I've been trying to create a tree from XML which looks like: <root> <hierlabel>A_Level0</hierlabel> <hierlabel>A_Level1</hi...
Are they AVL trees, red-black trees, or something else? ...