Populating Another TreeView From Treenode?
Jun 24, 2010
I built a treenode to be populated from my network drives, from this treeview I would like to populate another treeview to show the files when the first one is selected. For example, if the user were to click on the c:TestFolder then the second treeview would show the TestFolder, all sub folders and files.
Below is my code:
Imports System
Imports System.IO
Public Class F_Treeview_Demo
Public IsSomethingChecked As Boolean = False
Private fbIgnoreClick As Boolean = False
[Code] .....
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Aug 3, 2010
I know the node how can i get the bounds as a rectangle for a particular node on a treeview?
If it is not displayed i want nothing to be returned
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Mar 26, 2011
how to add a panel control as a treenode in a Winform treeview control
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Jun 15, 2010
I'm trying to bind a WinForms TreeView control to some user-defined objects. In particular, I'd like to bind aTreeNode.Text property to myObject.Name. My strategy is to create xTreeNode, a subclass of TreeNode, add a DataBindings collection, and expose its Text property.
This would allow me to write some code like this:
Dim oBinding as Binding
Dim bs as New BindingSource
bs.DataSource = myObj
[code]....
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Sep 13, 2010
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.
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Apr 1, 2009
Does anyone know if there is a way of populating a treeview from active directory so that it can do the following:Loads a list of servers --> Double Click the Server(Expand) --> Then i can select users --> then the department they are in --> then select the user so i can manage the user. i.e change there password[code]
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Jul 26, 2009
I'm trying to create a treeview in a VB 2008 project that shows all the elements and attributes of an XML Schema.The MSDN documentation for XML schemas seems to imply that by loading the schema into an XMLSchemaSet and compiling it I should get access to all the elements and attributes with their values but this doesn't seem to work in practice.
Using a for loop such as:For Each elem As XmlSchemaElement In compiledSchema.Elements.Values
I can use elem.Name to get the element name (and attribute name with a similar nested loop) for a simple type but this doesn't work for a complex type.Whenever (and however) I try to get values for complex types I hit a brick wall.
[Code]...
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Jan 24, 2010
I decided to make a module to store all my Sub's for populating a TreeView on my main form. My question is, how do I make the Module.vb where I'm storing these Subs recognize the TreeView on my main form? I'm going to create subs such as this:
Public Sub Populatetest()
Dim _GeneralNode1 As TreeNode = TreeView1.Nodes.Add("Test")
End Sub
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Jan 17, 2011
[Code]...
there is one problem here the root node on the line "GetDirectories(info.GetDirectories(0, rootNode))" here is the error "Error 1 Value of type 'System.Windows.Forms.TreeNode' cannot be converted to 'System.IO.SearchOption'."
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May 14, 2011
I have a problems with my application..
1. collapse and expand treeview when i click plus sign (+) on treeview, treeview didn't expand subfolder but when i click image, treeview expand it.
2. showing path that i check on treeview when i check the treeview then i'm click the button, then return path that i check
This is my code..
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Jun 2, 2011
So i'm trying to add a tooltip to a treenode, But with no luck. I've tried things like: Treeview.nodes(0).tooltiptext = "Hello"
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Jan 18, 2010
I'm trying to add a treenode to a listbox... say the TreeNode is named "Blue", when I add it to the listbox with Listbox.Items.Instert the output it gives me is "TreeNode: Blue"... How do I do this without having it bind the "TreeNode:" part to the output?
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Dec 1, 2011
I am able to populate treeview from xml.
But now i am going to place the tag propeties at each node. And the tag content will be file path.
My code to generate from xml is as below:
Private Sub Frm_Load(sender As Object, e As System.EventArgs) Handles Me.Load
Dim file_name2 As String = "C:UsersDesktopEngineering.xml"
[Code].....
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Jan 28, 2012
I'm writing a bit of code that I want to populate a TreeView, which it does quite successfully, but I also want to put a Dictionary in the Tag of each Level 1 child node. Once the Tag has been set to the Dictionary, is there any way I can modify the dictionary, without redeclaring the Tag.For Each verse In Verses
Dim _verse = verse.ToString.Trim
Dim _node As TreeNode = New TreeNode(_verse.Split(vbNewLine).First & "...")
_node.ToolTipText = _verse[code]...
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Sep 1, 2011
I need to grab the TreeNode that's selected when someone right-clicks on it. The TreeView.selectedNode() returns the top-most node, and disregards the child nodes.
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Jun 24, 2010
I'm confused regarding the MS examples for inheriting a treenode. I have created the following class to allow an addtion description field on the treenode:-
[Code]...
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Feb 17, 2009
I have some code that allows me to drag a treenode into a listbox and then drag it back into the treeview as needed. When I drag a node out of the treeview, the node is removed from the treeview. When I drag it back, I need the node to be inserted into the same parent node/position it came from. I think I can save the node's FullPath property before removing it from the tree, then decipher it again when I re-add it but am looking for a cleaner way
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Oct 31, 2011
I start with VB 2010 since a short time.I need to check in a Treeview if a node has children or not.In VB 6 there was the property clildren that allow to understand this.
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Oct 4, 2006
Is there way to Disable TreeNode Like .Enabled = False..I need this so no one can change the CheckBox checked state
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Dec 22, 2009
I extended treeview, treenode, and nodetype so I could have custom nodes. Certain nodes have image buttons on them allowing them to add a child node or delete the node. I can't handle any of the events from my buttons.Public Class ContentTreeView Inherits TreeView Public Event OnAddChild(ByVal sender As Object, ByVal e As EventArgs) Public Event OnDelete(ByVal sender As Object, ByVal e As EventArgs)
[Code]...
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Dec 13, 2009
I have a tree view with a parent node. parent node will have 2 or more child nodes and the nodes data will come from a access database table. if I select any one of the child node with the mouse it will display the SUM of the child node's data in a label control below the tree view control. the access datable table might look like this [code]...
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Nov 24, 2011
I want to do a form that can let user manual add in or delete tree node.When they add in, they can set the name and file path.Then it will store in oracle database.Each time my form run it will go through my database then execute all node from there.
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Feb 16, 2011
I dunno this can work or not..I want to do a form that can let user manual add in or delete tree node.When they add in, they can set the name and file path.
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Mar 9, 2009
It seems that Visual Studio is using a older verion of the System.Windows.Forms DLL.
When I instantiate a instance of the TreeNode object it doesn't have the "value" property. Right now my version of Sytem.Windows.Forms is listed as 2.0.0.0 and it's being pulled from the Microsoft.NETFrameworkv2.0.50727 folder.
I've installed all of the current .NET framework service packs....
Is there something else that I need to do so that the I load the most current version of this object?
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Jan 24, 2010
I'm trying to make it to where when I highlight a TreeNode, it displays the every one of it's ChildNode.Text into a Textbox, but if the highlighted node has no children, it simply displays the Node.Text of the node that is highlighted into the TextBox...
Here's an easier explanation just in case:
Dim ParentNode As TreeNode = TreeView.Nodes.Add("Parent")
Dim ChildNode As TreeNode = ParentNode.Nodes.Add("Child")
If ANodeIsClicked Then
If TheClickedNode = HasChildNodes Then
Textbox1.Text = ClickedNode.Children.Text
Else If TheClickedNode = HasNoChildren Then
Textbox1.Text = ClickedNode.Text
End If
End If
End If
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Jul 2, 2009
So I have a TreeView that starts off empty. Sequence of events is as follows:
Add a new root node. Code makes the label edit box pop up immediately, and I give it a name.
Add a new subnode to that root node.
Add a new root node, after the first one. The label edit box pops up, and I give it a name.
The second root node takes on its new name, but so does the subnode added in step #2. Now, it's not really the subnode's text; if I examine that TreeNode in the debugger, it has the proper text for a subnode. But that text that was entered into the root node sticks around through expanding and collapsing its parent node, until something else happens and I need to rebuild the tree.
I'm building the tree in kind of an odd way - removing all root nodes from the parent, all child nodes from the root, updating all the tags and text, creating new nodes, then re-adding the nodes to their parents - but I've checked, and the proper text is being associated with the proper node. The TreeNode that is showing the wrong text has only ever modeled the one object, never had anything else in its Text property, and has its text set back to the right value ("untitled action") right before being re-added to its parent node.
All I can think of for a culprit is the code for the label editing box, which is based on an MSDN sample:
Private Sub EditSelectedCategoryName()
If Not ActionList.SelectedNode.IsEditing Then
ActionList.LabelEdit = True
ActionList.SelectedNode.BeginEdit()
[Code] .....
EditSelectedCategoryName is called by a context menu item's Click event, right after the new root node is added and made the selected node. The DisplayName setter in the AfterLabelEdit event handler is what triggers another chain of events that rebuilds the tree. So am I screwing up some internal structure of the TreeView by altering its contents in the AfterLabelEdit event?
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Aug 16, 2011
I have a recursive function wich objective is scan an structure and represent that structure with treenodes. Inside my function depends the structure I'll have to create another treenode inside my treenode or just create a node. My problem is that I don't know how to remember my treenode position when I have to call my function again.
If strTop.TextString.ToUpper = "DMN" Then
gcTreeno.Nodes.Add("Node")
Else
Dim perf As New TreeNode
gcTreeno.Nodes.Add(perf)
End If
if i would like to write next time a node into perf, how i could do it?
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Jul 1, 2010
Items in the child node seem to replicate themselves everytime when expanded from a collapsed state. I think the problem is that the memory needs to be cleared before I expand.[code]...
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Mar 10, 2010
I want to have a small control follow the selected tree node. However, I cannot find a way to get the location of the selected node (in relation to the tree control itselfI know I could use the mouse pointer location, but I wanted the control to 'snap' to near the selected node by using its exact visible location.
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Mar 2, 2010
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.
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