I used both parent node and child nodes in a Tree View in visual basic 2010now i want user could delete a parent node if selected it or any of her childs nodes and user cant be able to delete a child nodes
View 1 RepliesI have a tree view in my project with a parent node and with theoretically speaking infinite child nodes.
Now I want to delete the last child node from the tree view when the user presses a certain button. I thought I could do this trick with this code:
Private Sub Bundo_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Bundo.Click
Try
[Code]....
I used both parent node and child nodes in a Tree View in visual basic 2010. Now I want user could delete a parent node if selected it or any of her childs nodes and user cant be able to delete a child nodes. How can I do this?
View 4 Repliesi have a treeview which has a bunch of parent and child nodes preset at design time, there is 1 parent node tho which is called developer, that i want to add child nodes to at runtime.When the form first loads im trying to have it check a text file and for each line in the text file add the text/string from that as a child node tot he 'developer' parent node.
vb
Dim reader As String = My.Computer.FileSystem.ReadAllText(Application.StartupPath() & "ConfigDevs.txt")
Dim strs() As String = Split(reader, Environment.NewLine)
For Each s As String In strs
[code]....
Thats what i have so far, how can i set it so 'Dim parentNode As TreeNode = ' points at the 'Developer' node?
i need to check all child node when the parent node is checked and i had do research from the internet but it seem that i had a error which is Type 'MSComctlLib.Node' is not defined.do i need to import any reference? [code]
View 4 RepliesIn the following code when the Element ("title2") is deleted the Attribute(("TEST") on another node doesn't get delete. If you remove the xnode1.RemoveChild(xNode2) (that deletes the element) the attribute does gets deleted. why I can't delete the attribute when I delete the element on another node?
Public
Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
[Code]....
i want to show the path a node from parent when a user choose one of them in treeview
View 2 RepliesI am having difficulties to obtain the node attribute value while searching for specific word within xml document. I am writing this code to search for specific word within xml document using VB.NET
[Code]...
Is it possible and if so, how does one go about doing such a thing. I am loading a network directory in a treeview. Can the parent node be disabled, meaning it can't be selected, it's available for viewing only, but leave the child nodes selectable?
View 2 RepliesI'm working on a drag-and-drop method to copy items from a listview control to a treeview. I've got the drag and drop working, but I'm hoping to limit the ability to drag items that create a child of a child. Ideally, if someone drags an item from the listview to the Treeview and the drop the listview item over a child, it would drop the dragged item to the parent.
View 4 RepliesI am now trying to add A node(descendant) TO a Node
eg.
From this:
<World>
<Country Name = "South_Africa"/>
</World>
[Code]....
any node above the current node in an hierarchical tree example the parent,grandparent,great-grandparent or the rot node are all ancestors of anode within an xml How might I get the grand parent and great grand parent of a current node xml.I'm using VB.Net in an ASP.NET application.can i have something like XmlNode greatGrandParent = myNode.ParentNode.ParentNode.ParentNode.lastchild.lastchild
View 2 RepliesWell I have a Tree View With 2 Main Nodes
Offline
Online
i have a for each statement that goes thru all the nodes in the tree and checks a value BUT heres ware the issues starts I when it gets the value if depending on the value i want to move it as a child to one of the 2 parent nodes
heres the code i have
vb
Dim sep As TreeNode
For Each sep In TreeView1.Nodes
Dim conn As MySqlConnection
[Code].....
When I select a node from treeview, it correctly shows the child form. However, when I close the child form and select the same node from the parent form, nothing happens.
Private Sub TreeView2_AfterSelect(sender As System.Object, e As System.Windows.Forms.TreeViewEventArgs) Handles TreeView2.AfterSelect
Dim intNode As Int16 = 0
'set fore color to black
Do While intNode < 10
[Code] .....
How do I check a parent node when I check one of it's child nodes??? I've googled this and searched on these forums but nothing...
View 10 RepliesA form has a multi line textbox that is read line by line searching for "MSH". When found it adds that line as a parent to the treeview. each following line is added as a child. Works fine if only one "MSH" line but if more than 1 I get must clone or remove message. I did clone the message but I don't want a duplicate of what is there. I have tried several variations and have not been able to get the 2nd MSH to be added as a child but not parent.I have started to repeate code so was hoping some of you experts can point me in the correct direction. Here the section of code that partialy works.
Dim LoopK As Integer = 0
Dim New_MSH_Parent As String = "No"
Dim MSH_Node As New TreeNode() ' parent node
[code].....
I am trying to check all the childnodes under a parent node, the code I have so far only goes about 2-3 levels deep in the TreeView and I am looking to grab all nodes no matter how deep they are.
Below is the code:
Private Sub CheckChildNode(ByVal currNode As TreeNode)
'set the children check status to the same as the current node
Dim checkStatus As Boolean = currNode.Checked
For Each node As TreeNode In currNode.Nodes
[code]....
What node property tells you if the node in question in a TreeView is the Root Node (i.e. highest parent level)? I want to be able to test a node (True/False) in a node event procedure.
View 2 RepliesI am quite new to VB so I have a tree view and I want to know how to make it when i click a node inside a parent node it opens a URL. And on top off that I want to be able to make the nodes you click on and URL's they open while the application is open. I want it so that I made Node0 in a options form and when I click it it will open a URL witch I also set on a options form.
View 10 RepliesI'm trying to open a file via a treeview. The nodes resemble the files and folders within a (parent)folder. I also have a textbox which has the location, including the name of the (parent)folder.
msgbox(e.node.fullpath.tostring)
This code gives me the path including the parent-node How do I get the path without the parent?
I have TreeView Populating from Database And I am Trying to detect the user action on treeview to make some decision that whether user has clicked on Parent node or Child node or child of a child node.Please any one help me to do this that how can i detect the user action on treeview
View 1 RepliesI have a treeview with nodes being represented as checkbox.
All works fine i.e when a parent nod is checked, its child and sub child should be checked as well but it won't check only the first subchilds and i am not able to find the solution, i have debugged it many time, but still not able to figure the solution.
I tried finding the solution on the web, but didn't got the proper solution. Below is the code which i am using in my form.
Private Sub trvModule_AfterCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles trvModule.AfterCheck, trvReports.AfterCheck, trvMasterAccess.AfterCheck
[Code]....
I'm in need of a custom control that will allow me to do something like the attached image. It's basically a TreeView with the exception of having a row of PictureBoxes for each child node. I'd be happy with a ListView that could do this even. I tried it briefly with a DataGridView with ImageColumns but the "look" wasn't quite what I was after. I'd like the "Parent Node" text to be situated above the row of images and just can't seem to find a control that will allow this.
View 6 RepliesI was wondering how I would go about placing a check in the checkboxes for each child node of a parent node in a TreeView control, if I was to check the parent node.
For example:
Parent 1Child 1
Child 2
Child 3
If I was to check "Parent 1" how would I be able to make that event place a checkbox beside all of the child nodes of "Parent 1"? (Child1, 2, and 3.)
[code]...
I have an error on the statement "removechild".CurDoc.SelectSingleNode("/vendor").RemoveChild(n) how to remove nodes base on attribute, e.g. base on oid attribute from above xml.
I would like your advice on the following:I'm making a program in which a client can send an SMTP mail and stores the date, name and subject into an xml file. This works perfectly.Also made a form in which the client can view the send items, this form reads the xml file and places the data in a datagridview. This also works
Dim verzonden As New DataSet
verzonden.ReadXml(CurDir() & "verzonden.xml")
verzonden.Tables(0).DefaultView.Sort = "Datum DESC"
[code].....
How to delete a node by his name?
View 11 RepliesI have an XML file that looks like
[Code]....
I am trying to delete the song node from the xml file but i can't figure out the cause of the error I'm getting. I'm still learning visual basics. Error: Object reference not set to an instance of an object. This is my code
[Code]....
I am working on Treeview control and Gridview Control VB.NET08. In the Treeview i have Parent and Child Nodes. Like: [Code] Comparing the Parent Node text and first two digits in the Column values. I want to add rows inbetween the gridview rows based on the parent and Child Nodes. If i expand the First Parent Node Called "31" then according to the Number of Child Nodes (for first parent node(31) there are 5 child nodes.) add rows in the gridview.
These New rows should be add under the 31-xxxx. If i expand the 32 Parent Node based on number of Child Nodes, add rows under the 32-xxxx. [Code] I am getting the rows in the end of the Gridrow not in the Specific row.
I have a treeview which have a listimage. And it has imageselectindex property (image is yellow ball)My problem is : When i click any node, the image of that node shows imageselectindex . I only want thirth child node will show it. I dont want when i click at first node (rootnode) or child of roodnode , the yellow ballon shows.
View 9 Replies