TreeView - How To Add Icons (Image Collection)
Jan 12, 2010
I'm a newbie to VB 2008 Express. I have a treeview to which I'm trying to add icons. I've added the icons to the treeview images collection, and I've put an imagelist on the form and added the icons to the listview images collection. I can't seem to work out the syntax required to show the icons.
Code:
Me.TreeView1.Nodes(0).Nodes.Add(driveName(i) & volumeLabel(i), _
driveName(i) & " " & volumeLabel(i) & formatSize(freeSpace(i)) _
, ??? )
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Jan 12, 2012
I have been trying to find code that will enable me to get default icons for a treeview in a computer browser programme. like the WINDOWS browser(Not the internet one but the "Windows Explorer" one) but i can't get icons that are allready there
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Jul 17, 2010
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]...
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Jul 1, 2009
treeView control which has been plaguing me for the last few days.
I'm not exactly sure what is causing this problem to arise, so I will just explain what my program is trying to do.
I am building an application which will have plugin support. I have created a Plugin interface, which is implemented by each plugin, as well as a host interface, which is implemented only by the host application.
Each plugin has an Action subroutine, and when finished, it is supposed to call the ExecutionComplete subroutine in the host interface.
Now, onto the problem. I have a treeView on the host form, which has several nodes in it. If I create a button on the form which displays a message box with treeView.nodes.count, it shows up fine, and everything works as expected. If I attempt to display the same messagebox from the ExecutionComplete subroutine, it also gives the correct number of nodes.
This is where things get a little weird. I have implemented a save feature into my program, so you can save and load data. For some weird reason, if you have loaded the data from a file, rather than adding each node manually, it now returns an empty node collection ONLY if I try to access it from ExecutionComplete. If I try to access the nodes from a button, it still returns the correct values!
What could it possibly be about the ExecutionComplete subroutine that makes it return a value any different than what is returned when the exact same code is placed in a button click event? And why does it only happen when I've loaded the data from a file? I just don't understand how loading it from a file is any different than them adding the nodes manually. The nodes are definitely being added, as I can see them, and the button click event can also see them. Also, ExecutionComplete is obviously able to read the contents of the treeView, because it works just fine if the user has set up the treeView manually.
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Aug 8, 2011
I want to pass my custom color as a parameter and I want to receive an Image (rectangle for example).
Public Function createIcon(ByVal c As Color) As Bitmap
Dim g As Graphics
Dim Brush As New SolidBrush(c)
[code]....
I tried this way and couldn't success.
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Jan 28, 2009
I imported icons from the VS 2005 Image library and they look kind of weird. I have it set on 16-bit color. The icons in the toolbar look fine but the rest don't look right. Has anyone had this problem before?
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Feb 13, 2011
TortoiseSVN and Dropbox both have Windows shell extensions that make file icons within Windows Explorer show a small icon beside the main one, showing the file's status - has it been synced, etc How can I make my application show icons beside files like that using the Windows API? Or is there some file attribute to do that?
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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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Feb 18, 2008
client2 so like this my treeview has be displayed.i can able to display the value in my treeview.my requirement is i need to keep image for the treeview nodes. for example Group1 - sample1.gif server1 -sample2.gif client1 -sample3.gif so i need to keep images to this nodes at run time and i need to chage the image depeds on my need. for example in some situation i will keep sample2
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Jul 1, 2011
how can we add images in treeview using vb.net. Different images in different conditions .
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Apr 14, 2010
[code]...
I'm trying to change the treeview image at runtime, i'm trying to apply the above code but nothing is happening. the goal is that i have an image i want to change it to another image at runtime.
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Oct 4, 2011
I've heard this is possible, and my code to mimic this possibility is not throwing an error but it's also not a part of the intellisense architecture.
[code]...
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Mar 9, 2009
am trying to display a longer image in the TreeNode Image. I have a 85x12 image that I am trying to display however the image is being cut to 12x12?Does anyone know to display the whole image?
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Jul 30, 2010
Just wondering the best way to find out when an image is clicked on in treeview control
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Aug 17, 2011
I am attempting to create a small script to help me build a photo inventory for a few thousand widgets. Each widget has a unique barcode. I'm working on a program to let me take a picture of the widget, then scan the barcode and use the barcode value as the name of the photo file (barcode scanner inputs text string wherever curser is positioned). Right now I have a script, which I put together from a sample available online, which lets me capture an image (.bmp) using a webcam, then it lets me save that file, using traditional Windows saving method (opens an explorer to select the location and type in the file name). It works, but I want it to work a little quicker, less clicks.
Imports System.Runtime.InteropServices
Public Class Form1
Const WM_CAP As Short = &H400S
[code]....
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Mar 9, 2010
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.
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Apr 23, 2011
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. 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.
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Mar 14, 2010
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.
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Jan 12, 2010
Displaying an image in front of a node's caption of a treeview. i have an imagelist that contains of images and a treeview containing of nodes. I have also assigned the name of the ImageList control to the ImageList property of the TreeView control, as you can see in the following code. here is the structure of my treeview: Code: even i know that by using the image index and the selected index property i can display the images in front of the node caption of a treeview but i cant do it properly and having a few confusions.
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Mar 20, 2010
I would like to make a image in the form representing the icon and a label below it to represent name but is there a easy way to do this.
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Jan 15, 2010
Is it good practice to store sub-collections of item X inside a parent collection of item X for caching 'filter-queries' which are performed on the parent collection? (They won't be used together (as in color AND type).) Or is it also ok to just Loop over the collection and return the correct entities in a temporary collection?
[Code]...
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Sep 7, 2011
I have the following classes:
Product, Service and OrderItem
Product and Service must inherit OrderItem. So basically I want to store OrderItem object in my shopping cart and these object are store in a list.
Public MustInherit Class OrderItem
Private m_enuItemType As TypeOfItem = TypeOfItem.None
Private m_strUserID As Integer[code].....
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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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Feb 8, 2010
I have been researching for a couple of days now and to no avail. Does Anyone know how to make a custom collection that take advantage of the collection editor? I would like to be able to have 3 Color Values, 1 Boolean and 1 String.
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Jul 25, 2011
I'm trying to support Basic.NET on my framework so I'm trying to convert C# 4 code to Basic.NET 10. Microsoft is committed to "co-evolve" these two but I'm having a problem with collection initialization... I found that I can initialize a collection much like in C#:
[Code]...
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Apr 15, 2009
I've got the following ADO.NET Entity Framework Entity Data Model:I want to find all the Policyholders with both a Service of a given Id and also a Keyword of a given Status.
This LINQ Does Not Work:
Dim ServicesId As Integer = ...
Dim KeywordStatus As Integer = ...
Dim FoundPolicyholders = From p As Policyholder In db.PolicyholderSet.Include("Keywords").Include("Services") _
Where p.Services.Id = ServicesId _
And p.Keywords.Status = KeywordStatus _
Select p
The Where clause cannot search the p.Services and p.Keywords EntityCollections in that way.
[Code]...
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Apr 6, 2012
currently in my application I have a Global Collection that is a Collection of Collections.Currently I am trying to add items/ elements to one of the child collections of the Global Collection but I am unable to use the collections methods of the child.When I assign a variable to the child collection and return the collection it is just an object with the collection inside.
Ex:
Dim GlobalCollection as New Collection
Dim ChildCollection1 as New Collection
Dim tempCurrentCollection[code]......
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Dec 17, 2009
I've been working with a CMS called InsiteCreations 2008. I'm running into an error I just can't wrap my head around. I would even be willing to compensate anyone a small amount over paypal, for a solution. The error is rare in occurance, and appears when clicking about 3-4% of links to other pages within our CMS.The full code page is quite large, but there seems to be only one function associated with the error. The error also only appears when not logged into the CMS. If logged into the CMS, clicking the link simply displays the page as normal. I have already checked permissions on the page from the CMS admin console, and it is public.
The error message is as follows:
Server Error in '/' Application.Collection index must be in the range 1 to the size of the collection.
Description:
An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
[code]....
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Apr 15, 2011
search the collection of a collection in my LINQ Where clause?
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Oct 25, 2011
i have a treeview say TV1 and another Treeview Say TV2.. Now TV1 Contains all nodes for user rights. and i want to add to tv2 only selected nodes.Like TV1 is
Node 1
....Child of Node 1 (Level 2)
.........Child of Child of Node 1 (Level 3)
what i want is that when i select Level3 Node it should chek TV2 for the parent of this node. if parent exist it should add the node under the same parent. if parent does not exist it should check for Level 1 Node and if it exist it should add Level 2 Node and then Level 3 Node. Otherwise it should add Level 1 , Level 2 and then Level 3 Nodes in order.
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