So, I have a custom Tree in which some nodes need to be marked as disabled. That is, they should be grayed out, and they should never be able to be selected. I've been able to prevent a user from selecting these disabled nodes by clicking on them pretty easily. However, I ran into the issue that if you have a child of the disabled nod...
Hello. I have a tree structure data that I want to load dynamically using <s:tree> of struts2. It loads completely ok. the problem is it's just for displaying, I can't figure out a way to make each item a link or append a link to it or anything. So there is no way to add new node somewhere deep in tree easily. Does anyone have any idea ...
Hi all I have some questions regarding GWT (2.1) with MVP and events. Got DockLayoutPanel with some components in it. A Tree component to the west and a SimplePanel in center. Each component has a presenter and a view. The problem is that I want to handle the components events in their presenter class, but now they are only catchable ...
I have a Flex tree that gets its datatip from a function that returns an "@action" property from the XML node if it has one, otherwise an empty string. This works fine, except for when I'm expanding a group of nodes with one that has an action property in it. The tooltip pops up in the upper-left corner of the flex app, then if I move my...
Does anyone know of a way to specify different vertical gaps between siblings in a Tree? I want to child nodes spaced tighter together (maybe 10px) while the top level parents remain spaced further apart (20px). Essentially, I need to change the gap dynamically based upon the depth of the node, but I'm not sure if the Tree class (or the ...
According to the ECMAScript specification in section 7.8.1 a NullLiteral is defined as follows: NullLiteral :: null What I am trying to understand is how this is represented in tree form when a NullLiteral is included in the following productions found in sections 7.6.1 and 7.8. ReservedWord :: Keyword FutureReserved...
I'm new to using the Perl treebuilder module for HTML parsing and can't figure out what the issue is with this.. I have spent a few hours trying to get this to work and looked at a few tutorials but am still getting this error: "Use of uninitialized value in pattern match ", referring to this line in my code: sub{ $_[0]-> tag() eq 'div'...
How would one go about choosing a random element from a tree? Is it necessary to know the depth/size of the tree beforehand? ...
I have a set of elements that belong to a tree. I only care about the ancestors, I don't care about the children. For example I want the tree to look like this: Barbeque Supplies* Household cleaning Supplies Air fresheners 1. Car Airfreshner* Paper Towels* Utensils Forks* The only input I'm given are the starred elements. So I...
I am trying to get a generic tree backing-bean to work. I have one generic class called ACLTree, and then an implementation of it. In my JSF document I try to access a value per #{mybackingbean.property}. But I get an ELException: javax.el.ELException: /modules/useradmin/acl.xhtml @30,55 value="#{ACOTree.root}": java.lang.IllegalAccess...
My data (spreadsheet): '1',,, ,'1.1',, ,,'1.1.1', ,,'1.1.2', ,,'1.1.3', ,'1.2',, ,'1.3',, ,,'1.3.1', ,,'1.3.2', ,,'1.3.3', '2',,, ,'2.1',, ,,'2.1.1', ,,,'2.1.1.1' ,,,'2.1.1.2' ,,,'2.1.1.3' My model: class Vocabulary(models.Model): name = CharField(max_length=60) class Concept(models.Model): parent = ForeignKey('self', blank=...
I have the following function in my c# silverlight application to find the total sub nodes of a node in the tree //get total children private int getTotalChildren(int id) { int total=0; for (int i = 0; i < persons.Count;i++ ) { if (persons[i].Manager == id) { ...
Hi all, I am wondering is there an easy way to make a copy of a tree structure that consists of one model with a parent_id that actsAs a tree? I was thinking it should be easy to recursively go through a given tree, remove all ids and lft, rght fields; however, as I add the new fields parent_id won't match up correctly. I suppose it sho...
How could i disable the selection color on single click and enable it just to double click. ...
Hi, Could someone direct me to some tutorial on Tree Data Structures using C. I tried googling but most implementations are for C++ or Java.If someone can point me to some online tutorials that are in C it would be great. Thanks.. ...
I've been working on this Huffman tree builder: // variable al is an array list that holds all the different characters and their frequencies // variable r is a Frequency which is supposed to be the roots for all the leaves which holds a null string and the frequencies of the combined nodes removed from the priority queue public Frequen...
I'm working on a Huffman tree and I'm trying to figure out how to traverse the tree to find the node that has the character that I'm looking for. While searching the tree i need to keep a string of the path that is taken to the node that I'm looking for using 1's and 0's (0 left 1 right). How can i do this? ...
i want form.load full the comboxcheckboxtree, but control appearl error message: this.tree.getRootNode is not a function [Break on this error] var root = this.tree.getRootNode(); i don't know how to do? i know it's error, but i'll how to do? ...
I have to serialize libkdtree++ in my program, the tree structures are briefly described as following: struct _Node_base { _Node_base * _M_parent, *_M_left, * _M_right; template<Archive> serialize(Archive &ar, const unsigned int version) { ar & _M_left & _M_right; } } template<typename V> struct _Node : public _Node_base {...
With the default TreeItemrenderer it is possible to enable automatic word wrapping depending on the tree width by setting wordWrap=true and variableRowHeight="true" in the tree control. I would like to enable this behavior in a MXTreeItemRenderer (a wrapper for using spark components as mx itemrenderer). I used the MXTreeItemRenderer cr...