In a tree data structure, the root node is a node with no parent, but which typically has children.
Questions tagged [root-node]
36 questions
15
votes
4 answers
PHP5: Find Root Node in DOMDocument
I have a PHP5 DOMDocument and I try to find the root node (not the root element).
Example:
x
x
y
y
…
BlaM
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12
votes
2 answers
WPF TreeView bound to ObservableCollection not updating root nodes
Sorry - my question is almost identical to this one but since it didn't receive a viable answer, I am hoping that someone else has some fresh ideas.
I have a WPF TreeView that is bound to a hierarchy of a single type:
public class Entity
{
…
Tim Coulter
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12
votes
3 answers
C# Xml serialization, collection and root element
My app serializes objects in streams.
Here is a sample of what I need :
In this case, the object is a collection of 'links' object.
-----------First…
Mose
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11
votes
1 answer
What is level of root node in a tree?
Some articles say level of a root node is 0 whereas some say it's 1.
From https://www.gatevidyalay.com/tree-data-structure-tree-terminology/
In a tree, each step from top to bottom is called as level of a tree.
The level count starts with 0 and…
Okokok
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4
votes
4 answers
XPath/XQuery: Select a root node with its attributes without childs
I have an xml:
I would like to select ONLY a root node with its attributes without its child nodes:
Is such thing possible with XPath?
Timofey
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4
votes
2 answers
wxPython TreeCtrl without showing root while still showing arrows
I am making a python tree visualizer using wxPython. It would be used like so:
show_tree([ 'A node with no children', ('A node with children', 'A child node', ('A child node with children', 'Another child')) ])
It worked fine but it shows a root…
None
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3
votes
2 answers
Multiple root nodes in Alpine.js
Building a data table with the latest Alpine.js (v3.7.0).
Ran into a problem when trying to implement child rows (i.e an additional togglable row under the main/parent row).
Simplified version:
Matanya
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3
votes
1 answer
Copy XML file contents except for root node and attribute XSLT
I am working on a small XSLT file to copy the contents of an XML file and strip out the declaration and root node. The root node has an namespace attribute.
I currently have it working except for now the namespace attribute is now being copied to…
RXC
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3
votes
2 answers
Root immediate child nodes icons not visible when hiding root
I have a JTree structure as shown below. I have Icons that appear whenever a node has child nodes, which is working properly.
My problem is that I need to hide the ROOT node. When I hide the ROOT node, the Icons for MainTop1 and MainTop2 nodes are…
Marquinio
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3
votes
5 answers
should a tree have exactly one root node
I want to display a tree structure. Do i really need to give the user/tree a predefined hardcoded root node like "RootUnit" where he can add his children or descendants?
Does this make sense or cause only trouble when adding nodes?
Pascal
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votes
0 answers
How do I correctly assign my root node to a value?
I am trying to create a Binary Tree from a Hashmap, and in order to do so, I'm trying to assign the root node to a specific Node in the Hashmap, basically the entry which has the entry.getValue() as null.
I have been able to convert my keys into…
Droid
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2
votes
1 answer
how to get value of a specified node in XML tree using R language
i have a xml file that includes rootNode and child node with attributes that handle values.
i am using the R language to work on the xml file.
what i need is to display the result of the employees that are in the department IT
how to display the ID…
Ghgh Lhlh
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2
votes
1 answer
Neo4j cypher - Counting immediate children of root nodes
I'm struggling with a problem despite having read a lot of documentation... I'm trying to find my graph root node (or nodes, they may be several top nodes) and counting their immediate children (all relations are typed :BELONGS_TO)
My graph looks…
Romain Bruckert
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1
vote
1 answer
How to access (PortalSiteMapNode) RootNode outside the SiteMapProvider?
A very simple question for experienced sharepoint developers I think.
Inside a PortalSiteMapProvider I can access the RootNode this way:
(PortalSiteMapNode) RootNode
My Question is, how can I access this node from other places, without a reference…
LMW-HH
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1
vote
1 answer
How to add multiple child nodes to a tree
I'm working on a project to create a tree with more than 2 child nodes. I get that when creating a binary tree, we can just create a left node and a right node to act as children, but when I've looked online for help in creating a tree, every…
Arjun Singh
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