Check All Items Under A Parent Node In Visual Basic?
Jun 25, 2010
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
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 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.)
The problem is I have 10 nodes(say) and there are some connections between them. Now I want to draw a visual graph depicting the above with circles as nodes and lines as connections between them. My problem is what is the algorithm for placement of nodes on screen, say we have drawn one circle, then the other circle should be drawn as non-overlapping as possible.
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 actually have to questions related to the same subject. First, I would like to know how to drag and drop items from a toolbox, for example, and onto a control coded to accept them. My second question is how could I move a form, with the mouse, that is completely customised.
I would like to know wha library or references I need to import into my Visual Basic for to do a spell and grammar check? I want to spell grammar check text entered into a textbox control.
How do i apply sub items to colums in listviews in visual basic 2010, so there under the collumn name and look smart The Second one is How do i program functions for when 1 of the subitems are clicked?
i realise that currently there is not built-in class for the checking of the current user folder in visual basic .net. anyone can advised the workaround for this. E.g. if user123 login to the machine, the code will return "c:useruser123"
This is what I have so far for the following scenario: I want to have it so that if a users clicks submit without checking a check box from one section it throws up a dialog box that makes the process loop and give them a chance to check a box. The process wont continue until at least one check box is checked. The same thing above goes for my radio buttons as well. Here's my code:
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
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
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?
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.
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
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
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
Okay I have this two Forms.. one for the parent and one for the mdichild. I have a toolstrip menu in the parent with a button(with a pic) named close document.
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.
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.