Know Selectednode Of Treeview Is Rootnode Or Childnode Or Child Of Childnode?
Jul 20, 2009How can i know selectednode of treeview is rootnode or childnode or child of childnode.
View 4 RepliesHow can i know selectednode of treeview is rootnode or childnode or child of childnode.
View 4 RepliesI have a TreeView with several nodes that have child nodes. Whenever I create a child node, it sets the image to a seemingly random icon in my ImageList. There are a couple of properties for the TreeView that have this icon, but nothing happens when I change it to a different one. And besides, it won't let me set those properties to "None."
I tried look at the properties of the child nodes, but everything is set to none and nothing changes. Does anyone have any ideas? In the photo below, you'll see the Internet Explorer node and its child nodes that have the Chrome icon. I need the child nodes to be blank.
I have a TreeView with several nodes that have child nodes. Whenever I create a child node, it sets the image to a seemingly random icon in my ImageList. There are a couple of properties for the TreeView that have this icon, but nothing happens when I change it to a different one. And besides, it won't let me set those properties to "None."
I tried look at the properties of the child nodes, but everything is set to none and nothing changes.In the photo below, you'll see the Internet Explorer node and its child nodes that have the Chrome icon. I need the child nodes to be blank.
I am trying to get vb.net to select a single node by id. I then want get all of the childnodes within the id and place them in to textboxes. see code below:
Xml doc
<Subject>
<Items>
[Code]......
Say i have these XML tag:
[Code]...
I have a treeview with all the nodes loaded from a dataset - each node has a tag set with a unique string, tag example ABC0001A, ABC0001B, ABC0001C ...
Is it possible to search the for a node via a tag and set the selected node.
Something similar to the following which I cannot use as the nodes do not have unique names.
Dim node As TreeNode() = TreeView1.Nodes.Find(myNode, True)
TreeView1.SelectedNode = node(0)
Is it possible to have more than one level of child nodes in a treeview? fore example can i have:
node1
-node2
--node3
---node4
right now it only lets me have
node1
-node2
node3
-node4
and also if it is possible how would i enable it?
Is it possible to have more than one level of child nodes in a treeview? fore example can i have:
View 9 RepliesI have the following code which checks for the value of the 'cc_supplier_status' column for each of the rows in my table. If the state is 0, I need a child node to be added to a node named 'Inactive Suppliers' in my tree view (tvw_Supplier) with it's text being the value of the 'cc_ supplier_ name' value for the same row.If the state is 1, a child node is to be added to a node named 'Active Suppliers'.If the state is 2, a child node is to be added to a node named 'Pending Suppliers'.The code I have now just filters out the status value for each row, and performs a select case on it. I need to know how I'd add a new child node to the parent nodes mentioned above.[code]
View 2 RepliesI have the following code for a treeview, It only shows a +sign against some folders, mostly system folders but not others, a mod to this code to show all childs, irrespective of how many levels the child folders exist?
Dim basenode As System.Windows.Forms.TreeNode
If IO.Directory.Exists(path) Then
If path.Length <= 3 Then
[code]....
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.
View 6 RepliesI have a treeview, a button and a textbox. When you click button1 a folderbrowserdialog opens and after choosing the folder the path to the folder and anything in it is show in the textbox and with this
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim sDirs() As String
[Code]....
adapted from Major treeview/list view head ache I managed to make the treeview display the folder and the sub folders... but it isn't very hierarchial. Check attached pictures. Image1 shows how it is and image2 shows how I want it to be. Can anyone tell me how to get it to look like image 2?...Image2 was made in Windows Explorer. Image1 is a screenshot of the runing program that I am trying to make. I have been googling around but no luck so far. Practically I think what I shoul be asking is how to create child nodes of subfolders. The program is going to copy whatever the user checks in the treeview into another folder chosen by the user. I am using Visual Basic 2008 Express.
I have an xml file with following structure:
<table name="tblcats">
<row>
<Id>3680</Id>
<Industry>Associations</Industry>
[code]....
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.
[Code]...
I have a treeview that gets populated from a MySQL database
i want to find out how to go thru each item on the tree and delete any duplicates
I am trying to create a treeview that looks something like the following:[code]I am using vb.net in Visual Studio 2008.
View 1 Repliestrying to determine the index of a child node using the key string so I can add a new child node to it.I am using this code:
vNodesIndex = TreeView1.Nodes.IndexOfKey(Key)
But only works for the root node when I try to find an exiting child node the code returns -1 (Not Found)
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..
[Code]...
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
[Code]...
The child nodes are there when first populated but when drives are changed or re loaded a second time, that is when they are missing, so how do I reset the nodes to show child nodes every time
[Code]...
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.
I have a treeview. The root nodes have images set at 30x30 - is there a way to add child nodes with NO image or a smaller image? I can do a blank image, but each child is spaced far apart! I would like the child nodes to be like there is no image... tight and close to each other.
View 13 Repliesi have a treeview which is databoud to a access dataabse, the database has 1 table, and the treeview shows everyname from column 2.
What im trying to achive is for the treeview to also display the names from column 5 and 6 as child nodes of the name from column 2. Been tinkering all morning to no luck, googles not finding much int he way of working examples, just lots of garbage.
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 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 trying to select a TreeView node with my programhy does this not work?
Dim
MyNode As
New
[code]....
I want to program a water supply pipeline network in a treeview control. It has five node (junctions). The parent-child relation is based on a parameter (say pressure). Initially, the node 1 is parent and its child nodes are 2 and 3. The node 3 has child nodes 4 and 5. At run time the pressure changes. Now, node 3 is parent and its child nodes are 1, 4 and 5. The node 1 has child node 2.
View 7 RepliesHow can I Collect all the Checked Child Nodes Name From a TreeView Control Using VB.NET Windows Applications.
View 4 RepliesI 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..