I have developed an n-arry tree. (like a binary tree but with numerous leaves per branch) in the hopes of developing a neural network test. The tree is built in a custom tree class that adds to the tree each run. Each time, new segments are added to the tree from 1 individual action. It can only have 1 action per run, so I might do action 1 the first time, and have a giant branch under that, with nothing under action 2 and action 3. The second run, it chooses action 2 the first time, so now I have a giant branch under action 1 and action 2, and nothing under action 3. That works all fine. The part that isn't working is the treeview I am using to display the tree after each group of actions is finished. Code is below.
It works fine the first run through. Except I'm not quite sure how to check whether a branch exists for the second run through, so instead of adding a second group of action 1, action 2, action 3, it jumps down that branch.
I want to be able to iterate through a tree and compare nodes one tree to the nodes in another tree of the same format. EX: There are five categories. 1 - 5. Are all static and identical between both trees. In 1. All static values. So i need to just compare the values of the nodes there. In 2. This is comes from a KVP object and so these can be different in terms of number of nodes and their single children. In 3. Same as 2 but there are 5 childrenIn 4-5 are the same as 1.I was thinking of looping in the trees and having a different for loop for each category and checking the nodes contain the same values
I am attempting to compare two directory trees. I have the program map the network drive and copy a directory. I need it to verify that the files copied successfully by comparing the source to the destination. If comparison returns equal then perform action1, if comparison returns unequal then perform action2.
i have a treeviev and listbox.i want to display the selected contents of treeview into the listbox.my code is working for file but not for folder. means i want, if the all contents of folder ABC(i.e all files) are selected then in listbox i want to show the only path of folder not the seperate path of each file.
i have a treeview say TV1 and another Treeview Say TV2.. Now TV1 Contains all nodes for user rights. and i want to add to tv2 only selected nodes.Like TV1 is
Node 1
....Child of Node 1 (Level 2)
.........Child of Child of Node 1 (Level 3)
what i want is that when i select Level3 Node it should chek TV2 for the parent of this node. if parent exist it should add the node under the same parent. if parent does not exist it should check for Level 1 Node and if it exist it should add Level 2 Node and then Level 3 Node. Otherwise it should add Level 1 , Level 2 and then Level 3 Nodes in order.
I have a class, let's call MyClass. In this class, I have a TreeView property let's call myTreeView..In my code, I populate the Nodes of this TreeView so I can use it later on.Then, when it's time to actualy use it, I haven't been able to take all the nodes from myClass and put them in a Tree View Control on my form.[code]The weird thing is that when debugging, the TreeView in MyClass is well populated with the proper values and in the loop, newNode isn't empty, there's actually something but for some reason it's not showing anything.
I'm running out of walls to bang my head against. Okay new windows form with a textbox, button and TreeView Populate the TreeView.nodes with the default nodes via properties
[Code]...
I want to click button1 and have the name of the childnode? Node3? placed in the textbox. Not via selection, I can do that. But via index or item number. The code I have is as follows
The TreeView uses in its underlying implementation the TreeNodeCollection. The TreeNodeCollection in almost every overload of the add method asks for a key.It also implements indexOfKey and ContainsKey yet there appears to be no way to determine the key of a node from the node itself or from any of the events you would typically use such as TreeView_AfterSelect().
Am I correct or is there in fact someway to retrieve the key from a node or event which I have overlooked? And assuming I am correct. Why on earth was it implemented in such a way? The only thing I could think of was that perhaps TreeNodeCollection.Key is deprecated? But I see no mention of this...
PS: I am aware of the TreeNode.Tag property and how it can be used to the same effect.
I want to display data with level of detail, so i use a TreeView, but each detail is quite short, so i would like to use a WrapPanel (horizontal) to have many details per line.Something like :
This is an unexpanded item This is The Header of an expanded item Info 1 Info 2 Info 3 Info 4
I have been looking for a some working code for the last couple of days to set up a treeview in my WPF app to display some database data. I use VB as i am much more confident in it - which drastically limited the code examples out there. More examples i found used manually entered data to populate each node versus a database which was little help. I finally found some code which bound the each node to a query and related the query via a DataRelation. Great this should work perfect!
The example used the Northwind database so I changed it to my database and plugged in the queries. To my shock the treeview populated fine except.... all the data is invisible.
and here what i end up with the data seems to be there but you can't see it.PS there may be some confusion as to the objects. I went back tried to keep as close to the original code as possible when i discovered the problem only replacing the queries with my own - the original code used "Categories" and "Products" where as I "use Distributors" and "Titles"
Public Sub Popululate_Treeview() strConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & strDatabasePath Dim connection As New OleDbConnection(strConnectionString) Dim dsInlognaam As DataSet = New DataSet
[code]....
The parent nodes are populated through the table "tblINLOGNAAM" The childnodes are populated by "qryINLOGNAAM_GEBRUIKER_DR" When I click the parentnode I don't want anything to happen.But when I click a childnode I would like the ID of that name (wich is stored in the table "qryINLOGNAAM_GEBRUIKER_DR" with the name "Gebruiker_ID") to show so I can make a master detail relation with a datagridview.My problem is that I cannot get the gebruiker_id from the table "qryINLOGNAAM_GEBRUIKER_DR" when I click the childnode.
I'm currently working on an application whereby I've a treeview in my form and when the user upload an image in the picturebox, the image will be save automatically. For every node, I would like to allow the user to open a different image from the previous images without over writing away the images open in other nodes earlier on. Can anyone out there help me with the codings? I'm using Vb.net.It will be like when user click on the different nodes, the user can open different pictures .
want to do something if (and only if ('Iff', I believe it is)) a child node is selected. How can I find which child node was selected using the TreeView1.AfterSelect event? Or do I need to use some other event?
I have a TreeView that I want expanded upon startup...p says the following code should do it....Me.TreeViewBibles.IsExpanded = Truehowever, this is not a property that VS2008 allows me to set for the TreeView.
