Check Child And Subchild If Parent Node Is Checked In Treeview?
Apr 25, 2011
I 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
I 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.)
I'm all new to this treeview business. I have a fixed treeview, very simple and basic. Only two levels, parent and child nodes. I just need two things out of this treeview.
1) If parent is checked, check all child nodes.
2) If just one child node is unchecked, uncheck parent node.
That's it! I've been looking for this for 30 mins and I cant find it. Maybe because my vb.net is old, it doesnt seem to be the same as others =/ I'm using vb.net 2003.
i 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]
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
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I'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.
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?
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] .....
A 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
I 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
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I 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.
I'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'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.
I want to create a treeview using this XML file. I have written following code
' Load a TreeView control from an XML file. Private Sub LoadTreeViewFromXmlFile(ByVal file_name As String, ByVal trv As TreeView) ' Load the XML document.
[code]....
where as I want table as parent element like this
->table ->Associations ->Fortune 100
so that If i click table node, all tree collapses or expands.
Right now I have a treeview with 2 parent nodes and each Parent Node has multiple child nodes.I would like to display the text of the Child Node in a textbox. Which I have been unsuccessful.The code I'm displaying below shows both parent and child node. But I only want the child node.
way to return a collection of treenodes which are children of a selected node? I can't find on MSDN a object of treenodes that is a collection of childnodes.
I have two treeviews, and I am writing code that will copy treenodes from one treeview to another treeview if it is selected. If a parent node is selected, I would also like to copy over all the children. If it is just a childnode, then I would like to copy just that.
Here is what I have so far.
Dim treeobj As TreeNode treeobj = TreeView2.Nodes.Add(TreeView1.SelectedNode.Text) If TreeView1.SelectedNode.Parent.Index.ToString Is System.DBNull.Value Then
I have a simple Treeview with 1 rootnode and several childs I'm allowing users to add a Group (in the rootnode) in which they can drag and drop other childs. But how can I remove a 'Group' without loosing its childs? If I do a remove it also removes its childs.
I'm working on a program that allows me to edit XML data in a DataGridView. I have most everything working but I don't like my current TreeView Structure. I load the XML data into a DataSet and edit it there, so that is what I'd prefer to base my TreeView on. I've tried a few things such as..
I am not sure I am getting the concept of referencing nodes in a treeview. When I hard-code nodes like:
tnParentNode = New TreeNode("ABC") tvReports.Nodes.Add(tnParentNode) tnParentNode = New TreeNode("Some Other Company")
[code]....
I get two parent nodes and one child off Some Other Company. However, when I pull information from a couple of tables to set up the parent and then the child nodes, I only get the parent nodes.So I pull the main parent nodes from one table and the child nodes from another table.This code pulls the parent nodes without any problem:
strSQLText = "SELECT lID, sCatName FROM Category ORDER BY iSortOrder DESC" reader = GetReader(strSQLText) While reader.Read
[code]....
But this does not add the child nodes. I am assuming it is because of the first line in the above reader.read while loop. I must not be referencing the proper parent node but I am not sure how to do it.
