Disabling ContextMenuStrip For Parent In TreeView?
Mar 2, 2011
This seems like it should be simple but I am not finding it. In a nutshell, I have placed a treeview on my form and added a contextmenustrip and associated it to the treeview in the treeview properties. I am creating the tree parent and child nodes programmatically.
The problem is, I do NOT want the context menu to activate for the Parent nodes when you right click. I need to do one of two things:
1. Disable the context menu for the Parent nodes. OR
2. Remove the context menu association from the treeview and add it to the child nodes programmatically.
I have been unable to find either.
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Dec 30, 2009
I've made a ContextMenuStrip to use in my program to change the image in a picture box. However, it's used with multiple picture boxes which each need to have their own changed. What I want to do is make my command change only that picture box leaving the others as they were before. An example, if this were a plausible code.
Private Sub TestToolStripMenuItem_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles TestToolStripMenuItem.Click
Self(aka the control that currently has the menu open).Image = My.Resources.Picture
End Sub
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Apr 13, 2012
So, I have a treeview populated like so:
-Processors
--Name1
---folder1
[code].....
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May 19, 2009
i want to show the path a node from parent when a user choose one of them in treeview
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Apr 13, 2011
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.
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Mar 30, 2008
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.
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Jul 18, 2012
disable the parent window form as soon as the user will open the child form....
for eg...consider daniweb...when we click on member login the background form gets grayed out....
Disabling the form is not the option cause it will just disable all the controls of the form....but I need a grayed out screen between the current child form and the parent form....
note - the parent form is not the MDI form...it is just a normal window form and when the child form is open and if the user clicks on the main form without closing the child form then the screen should show some movement...
I tried disabling the form...changing the background of the form to opaque....but could not get through it....
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Nov 19, 2011
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?
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Mar 7, 2012
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] .....
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Apr 3, 2009
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...
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Jan 18, 2011
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
[code].....
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Sep 26, 2010
how to count the Childnodes of the Parent? I have several Parents, but I need to count only the children of a specific Parent. Means not all the childnodes. I know that I need to use the .count.
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Feb 2, 2011
I tried a few different way but just can't see to get it. Seems if I set the parent icon to what I want, selected and unselected, it also changes the children. What I am after is to have a parent icon that does not change regardless if it is selected or unselected. But the children will follow the icons for selected and unselected. If I don't add a third icon it all works fine, so how do I add one to parent but not change the children?
code
Private Sub tvFolders_AfterSelect(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles tvFolders.AfterSelect
[code]....
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May 6, 2009
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.
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Sep 25, 2011
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]...
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Aug 24, 2009
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.
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May 11, 2012
How would i add all registry (subkey, parent, etc) items to a treeview?
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Oct 31, 2010
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.
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Mar 23, 2011
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?
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Feb 11, 2012
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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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
[Code]....
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Jun 9, 2010
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.
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Jul 6, 2011
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.)
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May 5, 2012
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.
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Aug 31, 2011
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.
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Dec 15, 2011
I have a problem with my treeview. I have two child nodes with different parents which contains a literal (*x). In this case (*1) (view image)
[Code]...
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Nov 26, 2011
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?
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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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Aug 3, 2011
This is a challenging one that got me stumped while I was coding today. Suppose I am running the Sub Test1() and Test2() and would like to print out the value of the Shadows method of the instance of the object I am passing in to TestCall() (see below - it is clearer) using the following restrictions:
Can't change the contents of Class A, B, and C
Can't change Sub Test1() and Sub Test2()
TestCall() can't have an if, select case etc. statement that tries to figure out the type
[code].....
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Jun 24, 2009
I have a main form, and some sub forms, and each sub form can have some sub forms. When I have multiple sub forms open, and I try to get data from the parent form, it returns the data from the wrong parent form.For example I have two instances of Mainform.subform running. If I do something like this in a child form of one instance of the subform. It returns data from the other subform.
dim l = Mainform.subform.listofdata
Edit:I am using visual Studio 2008. Winforms, form designed using designer. In my mainform I am doing this
Protected Friend frmMain as Mainform
frmmain = new mainform
In frmMain I am doing this
Protected Friend frmsub as new Subform'
frmsub = new subform
[code]....
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