Find A Control That Combines Treeview / Listview
Dec 14, 2010
after a week of trying to find a control that combines the Treeview/Listview, a so-called TreeListView, I gave up. The ones I found are either buggy or have too many features (making them heavy).The best way for my personal needs is probably to use an ownerdrawn Listview and doing the indentation (expanding/collapsing) myself.There are a few problems:
1) I can't get the Plus/Minus images to show properly. If I expand a 'node' and collapse it, then the Plus image doesn't show. If I expand two 'nodes', then the Minus image of the first expanded 'node' becomes a Plus image again.
2) Clicking the Plus and then Minus image too fast causes weird flashing behaviour of the 'node' expading/collapsing.
3) Somehow I need to be able to update the Listview in real-time. I know I can use ListView.RedrawItems to refresh a single row, but I need some kind of structure to know which 'nodes' have been expanded. When a 'node' gets expanded, then everything below gets a different index.
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May 15, 2012
When inheriting class or control e.g. ListView, TreeView, etc..., what is the best way to distinguish between built-in methods/property/events and mine?
Currently, i start my methods/property/events with "aa" in order to make them at the top of auto complete list.
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Mar 28, 2011
I have been tasked with making a program that combines text files.. okay.. easy enough. Problem is now I have been asked to make the same program start from the second line of the text files to get rid of headers. I am currently using StreamReader to do this but not sure how to make the reader "line feed" before it reads the data. Any help would be much appriciated. Current code below..
Private Sub BackgroundWorker2_DoWork(ByVal sender As Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker2.DoWork
Dim writer As StreamWriter = New StreamWriter(Environ("userprofile") + "\Desktop\CombinedFile.txt")
Dim files As String() = Directory.GetFiles(TextBox1.Text)
Dim filename As String
[Code]...
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Sep 2, 2011
I am trying to make a listview custom control based on the standard listview control that will allow me to drag a column header outside the standard listview control and drop it on a panel. I plan to use the drop event to determine which column I should group by view on.
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Mar 21, 2010
Do I really have to go through all this just to find out what item has been selected in a ListView?
[Code]...
Isn't there something fundamental like this? Is absolutely everything in VB.NET buried beneath a colossal heap of bureaucracy?
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Sep 15, 2011
All my TreeView nodes have a unique ID for their Node Depth.
I want to set Checked=True on the TreeView Node which matches a certain value.
Currently I'm doing the following:Dim value As Integer = 57
For Each n As TreeNode In tvForces.Nodes
If n.Value = value Then n.Checked = True
Next
Is there a better way of finding the Node which I want to set as Checked=True rather than looping through each node?
I'm looking for something like:Dim value As Integer = 57
n.FindNodesByValue(value)(0).Checked = True
Is there anything like this that I can use?
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Nov 21, 2010
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)
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Mar 31, 2012
I face a problem finding nodes in a treeviewActually I want to duplicate a node (mynode) in my treeviewSo I want to search all the nodes to find similar nodes and count them and then when I will create the new node I 'll add a number at the end of its name
Ex
nodes:
aa
[code].....
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May 3, 2010
I have an explorer skeleton to which I have added roots and nodes in the TreeView. How do I change the contents of the ListView depending on what in the TreeView is selected? In the Code below I have three roots in my TreeView and some default items in the ListView
Private Sub LoadTree()
' TODO: Add code to add items to the treeview
Dim tvRoot As TreeNode
Dim tvNode As TreeNode
[code].....
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Aug 6, 2009
While i'm still trying to debug my treeview code, i guess now would be a great time to ask how to get the information that i click onto a listview.
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Mar 6, 2011
i'm looking for a control that is a listview but also acts like a treeview. What I want is f.e.:
+ Item1 description1 information1
-item1b descriptionb informationb
-item1c descriptionc informationc
+ Item2 description2 information2
By clicking on Item1, item1b and 1c must be hidden or showed...
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Feb 1, 2012
I have a requirement for a new application development where I must present some information to the user for selection via drag and drop. VB offers the TreeView control which would work nice, however the user does not like the Treeview control's presentation. The user wants a control that work similar to the Mac's Finder control while in column view.
Apple's Mac Finder Control works similar to window's treeview. Finder has a nifty view capability that my users would like in some new development that is being done. The finder supports a "column" view. Similar to the treeview, it starts out in a root list. The difference being, when a user makes a selection and clicks on a node, the node doesn't expand, the sub nodes appear on the pane to the right of the list. Clicking on a sub node, will cause the pane to split again and the items within that sub node appear
to the right again.
This will happen again and again with the left pane getting narrower as the user drives deeper into the sub nodes. That is what I am trying to replicate. Obviously, once the user reaches the base list of items, we have to support drag and drop capability. Does anyone know of a control for VB.NET that work similar to the Mac's Finder control?
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Oct 19, 2008
How can i loop trough treeview and get path of directory of each folder in the treeview?I have this code for adding a color to a treeview item, but it seems like its not possible to retrive the folder path...
HTML Code:
'add color to folder in treeview
Private Sub RecurseNodes(ByVal
[code].....
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Feb 26, 2011
I know that I can use treeview.nodes.find() but that will find the exact text so how would I search a treeview to find like items?
I have come close but this only searches the parents, never the children. Would I have to do a double search, start at parent and then get all nodes in parent?[code]...
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Mar 24, 2012
I have a Treeview with two levels (customers , products) and I want to find by customer name... I tried the following:
[Code]....
This does not work... could somebody tell me what I am doing wrong.
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Nov 20, 2009
I'm trying to add an explorer form with a listview and treeview.My problem is when i select a node on the treeview.I want its child nodes to appear on the listview. They must appear with the images i have in the treeview as well.
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Nov 15, 2011
I have a form to manage student. When I add, the data appear on ListView and TreeView at the same time and the same data. Everything works perfectly.
But one proble about Delete button. I choose the line from the ListView and Delete it. The ListView delete the item perfectly. But I don't know how to delete the item on ListView and automatically delete the item on the TreeView.
Note: When you insert the data to ListView and TreeView. When you fill the information into the textbox. Remember after that choose class on TreeView and Click BUTTON ADD.
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May 10, 2010
I have an explorer-like form with a TreeView and a ListView. I have finally figured out how to populate the the ListView based on the selected node, but when I am debugging, I click on a node, and the ListView doesn't change. I have to single click twice on the node for it to work. What could be my issue? I have included the code from my sub below.
Private Sub TreeView1_NodeMouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.TreeNodeMouseClickEventArgs) Handles TreeView1.NodeMouseClick
Dim newSelected As TreeNode = e.Node
ListView1.Items.Clear()
Dim subItems() As ListViewItem.ListViewSubItem
[Code] .....
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Mar 6, 2012
I'm having a problem with the treeview I cant find a way to find the click event in each child nodes Here's a sample image here's what Ive tried so far.
[Code]...
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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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May 31, 2011
How to search, expand and select a node in a TreeView. I'm doing it with a textbox and a button.
I am using this code, but I do not work well. I have to open the tree so you can find the node.
[Code]...
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Apr 7, 2011
I'm having a problem with the treeview I cant find a way to find the click event in each child nodesHere's a sample image
here's what Ive tried so far.
Private Sub TreeView1_AfterSelect(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles TreeView1.AfterSelect
[code].....
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Jul 8, 2011
[URL] for example...when i click the folder in the TreeView, the ListView will display all the items in the folder....but how to write the coding
coding for TreeView
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
GetFolders(Nothing, "c:users", TreeView1)
End Sub
[code]....
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Jan 21, 2012
for example...when i click the folder in the TreeView, the ListView will display all the items in the folder....but how to write the codingcoding for TreeView
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
GetFolders(Nothing, "c:users", TreeView1)
[code].....
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Feb 11, 2010
I have a small problem with a list view and tree view. When i click on the first child node a form opens. Because my listview is populated dynamically when i click on treeview, i want the listview itemes to inherit the function of the treeview. For example, instead of cliking the treenode in the tree view to open a form i will click the list view item and the form opens.
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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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Jul 20, 2009
This is a follow-up questions to the following post: [URL]
Below (Example 2) is working code for populating a treeview with directories only down to 1 level. Note just directores are added- No files. I want to add a Listview control beside my treeview and have the Listview populated with the "files" from the selected node in the treeview. This would fire off the NodeMouseClick event of the treeView. I have used Example 1 (NodeMouseClick) before with other code that I have. However, I cannot get the code to work with the Example 2 code below
how to change the Example 1 code to work with Example 2?
Example 1
'************************************************
Private Sub treeView1_NodeMouseClick(ByVal sender As Object, _
ByVal e As TreeNodeMouseClickEventArgs) _
[Code].....
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Mar 23, 2010
I have been playing with, and researching, this all day and can't figure it out. I have a Windows Explorer style form with a TreeView and a ListView. I've populated the TreeView with directories and when a node is selected, the ListView fills with the contents of the directory associated with that node. No problem there, but I want to be able to select a directory in the ListView and automatically select the associated node in the TreeView, just like it works in Windows Explorer. All the information I've found online tells me how to populate the ListView from the TreeView, but I haven't found any good examples of how to populate the TreeView from the ListView.
[Code]...
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Jul 29, 2010
I have 3 forms, one frmMain - main form, second is frmUserType- childform, and the last frmCreateUserType. In the main form I have a menu item to open my frmUserType, In this form I have a button to open another form which is my frmCreateUserType, In this form I have a button to add records then update the listview in frmUserType. The problem is the listview will not access with my add button control in frmCreateUserType. I tried not to used mdiparent declaration for my frmMain and frmUserType as children and it works, so meaning that the problem is showing my frmUserType as childform?I am using vb.net 2008
Code to open my second form (frmUserType)
[CODE]...........
Code for my add button to update the listview in frmUserType
[CODE]...........
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Mar 15, 2012
I'm using ListView control, with SmallIcons style in VB.NET. Icons are loaded fine, but when I start to scroll ListView down or up from scrollbar (clicking from arrows), rowheight drops to about half from normal in next 20-30 rows below/above upper/bottom row (depends from the scrolling position). After 1-2 seconds, ListView is "refreshed" and scrolling continues normally. When focus in on the ListView and I'm moving up/down with arrow keys or PageUp/PageDown, everything is normal. Any suggestions, what is happening? SmallIcons size is 16 * 16. Is it compulsory to set "Blank icon" with SmallIcon size to all rows, when adding them or what? Wasn't like that in VB6, how is it in VB.NET?
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