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Questions tagged [tree-nodes]

36 questions
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javax.swing.tree.TreePath Selection to XPath Query String

How can I get the corresponding XPath Query String from a selected TreePath? a |-b +-c |-b +-d If I select "d" I want to get something like /a/b[2]/d EDIT: For now I wanted to loop through the tree.getSelectionPath().toString().split(",") but…
KIC
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How to get children for each internal node in R?

For the dendrogram object how can I get children of the internal nodes? Ideally I would like to extract children with their labels. thank you
Alexandra Bolotskikh
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Populate one Treeview from another C#

I would like to be able to take a treeview that i have created from a directory, and when the user checks off a checkbox next to a node, i would like that node to appear in the second tree uding the same directory structure root a b b1 b2 …
Axxelsian
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Given an array of values corresponding to the location of a leaf node, how would I access said node?

Note: I am unfamiliar with terminology regarding tree structures. Please forgive any oversights that may be a result of my ignorance! Practical Example Given an array as such: Array ( [0] => 0 [1] => 2 [2] => 8 [3] => 9 ) The tree…
Julian H. Lam
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Undirected Graph adjacency (Computer Science)

I have an undirected graph G=(V,E) with nodes labelled 1, 2, 3,...,n, and a specific node k in V. I have two representations of this graph: Adjacency-Matrix and Adjacency-List How would I go about figuring out if node k is adjacent to all other…
0xSina
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Is Read-only property available in tree node in C#?

How to set tree node 'read only' in windows C#? Should not us disable, default.
Dhanapal
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preventing duplicates when inserting nodes to treeview control

I want to create a hierarchical view of strings based on first two characters. If the strings are: AAAA,AAAA,BBDD,AABB,AACC,BBDD,BBEE I want to reate a treeview that looks like this: AA AAAA AABB AACC BB BBDD BBEE I currently have…
epeleg
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Conditional styling of PrimeNG TreeNodes using templates

I am well aware of how you can style all your nodes at the same time but I need to add one styling if the node is a leaf (the node has children) but no parent and if the node has a parent but no children. Here is my code.
Casper Nybroe
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How to use a Node pointer as a return type in a BST class?

I am new to C++ and I am confused as to why I cannot utilize Node* as a return type for functions in my BST class (I have to use it as a return type). My guess is because Node class is not declared except for in 'private'? Though I am not sure how…
SS Android
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c++ Binary Search tree Deletion

So, my question is I don't understand why this doesn't work. I commented below where it is saying that parent is never initialized when it clearly is. Am I doing pointers wrong, am I getting the logic backwards am I so far off it would be better to…
varrick
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d3 collapse tree - update node visualization

Hey im working with that example . Watch below for my modified Sourcecode. Depending on the propertie "enabled" of a node it is coloured green or red. nodeUpdate.select("circle") .attr("r", 10) …
freeFoodFred
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Javascript: Need to remove a single instance of a class on the page when the id is generated

This title may be a little convoluted.... but here it goes. I have this block of code. In the (I think it's called the parent) span, you can see the id is defined as qa_prdcmpr_qtyspan_0. There are 4 of those on a page (created as 0-3) to compare…
ResourceReaper
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Loop through nodes of tree view from current selected

I have a tree view that has been built fine with no issues. Is their a way to start looping through the nodes at the current selected node instead of looping through all of them? TreeNodeCollection nodes = treeView.Nodes; foreach (TreeNode n in…
JPJedi
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Type Passing / Changing

public abstract class ASTNode3 extends ASTNode { ASTNode child1; ASTNode child2; ASTNode child3; public ASTNode3(ASTNode c1, ASTNode c2, ASTNode c3) { child1 = c1; child2 = c2; child3 = c3; } public ASTNode…
ferronrsmith
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String variable to a DefaultMutableTreeNode object?

Is it possible to convert a String variable to a DefaultMutableTreeNode object? Please explain. Context: String s = new String(outputTagName); Object s2 = (Object) s; DefaultMutableTreeNode selectedNode2 =(DefaultMutableTreeNode)…
fixxxer
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