Threading/Checking Sub-Items In A TreeView?
May 17, 2009
I have this code..
If Form1.ListBox1.Items.Count = 0 Then
Else
Dim classSS3 As New StringSift3
Dim ReturnVal As Single
[code]....
What im trying to do is the returnval works its a compare percentage, dont worry about that. lb1 is the index of listbox1.selecteditem which is the first item, im trying to make it check the childnode for each root node in the treeview.but i get an error on.Form1.TreeView1.Nodes(Form1.lb1).Nodes(classItem).checked = True saying..Object variable or With block variable not set.
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Aug 24, 2010
Im new to treeviews so I hope this is not posting a problem that has been covered. I want all the children of a checked parent to also be checked. I have found various snippets that can achieve this but only for one or two levels. When I expand further than 2 levels the children are not checkeds. What am I missing? I have managed to find this piece of code that I am using in both the "AfterExpand" and the "AfterChecked" events to achieve the result. There must be a better way.
[Code]...
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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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Sep 9, 2011
If you would indulge me here for a moment and answer a second question, how ever it has to do with an array.
I just want to know if it is possible in a single if statement to check all the items in an array
Dim times(3) as textbox
times = {adjust1, adjust2, adjust3, adjust4}
if times(?????) = String.Empty then
[Code]....
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Mar 23, 2010
I have this code to check if an item from a textbox is in a listbox and its giving me the error at the bottom.I copied it from another part of my project and it was working for that part so I cant see whats wrong.
If LocationsSearchTextBox.Text <> "" And LocationListBox.Items.Count > 0 Then
tempInt = 0
While (tempInt < ClientListBox.Items.Count)[code]......
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Jan 7, 2011
I have a CheckBoxList where one of the options includes a textbox to fill in your own value. So I need to have that textbox become enabled when its checkbox (a ListItem in the CheckBoxList) is checked.This is the code behind, I'm not sure what to put in my If statement to test if that certain ListItem is checked.
Protected Sub CheckBoxList1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles CheckBoxList1.SelectedIndexChanged
If ___ Then[code]......
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Mar 13, 2012
I have a checkedlistbox with numbers in it and I'm trying to load a list of numbers from a database and check all of them (they should all be in the checkedlistbox).
I was trying to do this by loading all the values into a separate listbox using my own subroutine (I know that part works) and then finding the corresponding item on the checkedlistbox, like this:
Dim ItemName As String
For Each item In ListBox1.Items
ItemName = ListBox1.GetItemText(item)
If CheckedListBox1.Items.Contains(ItemName) = true Then
CheckedListBox1.SetItemChecked(CheckedListBox1.Items.IndexOf(ItemName), True)
End If
Next
End If
But this doesn't work: It never returns a match, even when the item is definitely on the list. How do I make this work?
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May 27, 2012
I have a listview with checkboxes for each items in the listview. You can see in the listview1_itemcheck event that when I tick and untick for each checkboxes in the listview, it will add the subitems text in the label. Can you please help me with a button event as I would like to know how i can check the subitems in the listview when I add each subitems text in the label?
[code]...
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Jul 6, 2011
I want my program to check the pagerank of all string list items, and than add it do a listbox. Now this is my code to open a list and add it to a string list ( itemlist as list(of string)
Dim stream_reader As New IO.StreamReader(OpenFileDialog1.FileName)
Dim line As String
line = stream_reader.ReadLine()
Do While Not (line Is Nothing)
line = line.Trim()
[Code] .....
I'm using the DLL from this website: [URL]. The problem is that it only checks the first website and the other websites will be 0/10 automatically while they might be 3/10 or something else.
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Feb 17, 2011
I am making a virtual crafting application (similar to that done in Minecraft)
currently I have made a test "crafting recipe" which checks if the listbox (mixbox) has 1 window, 1 door and 1 wheel. the code looks like this:
If mixbox.Items.Contains("window") Then
If mixbox.Items.Contains("door") Then
If mixbox.Items.Contains("wheel") Then
[Code]....
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Sep 28, 2010
I am trying to sort a treeview, base nodes, which is the first base set you see before you click any + sign's I am trying to sort by alphabetical order, but, for the nodes inside each + view of the tree's I want to sort by number order, the number is currently set to the tag as text version of the number. Anyways, for the nodes in the + view's I need it to be able to skip over numbers if not every number in sequential order is there, so if number 4 is missing for example, still sort 1,2,3,5,6. My full code is pretty big but just retrieving items to display is random & I just add items as they come in, now they don't come fast or even when your not expecting new things to appear so it should not matter how it works really as it wont be updating as they are using the treeview.
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Jan 8, 2011
I'm trying to add items to the treeview. I only need Test to be displayed ones, and add last four items as sub category. I tried this code but get error.
Dim Test As New TreeNode("test")
For x = 1 To 5
TreeView1.Nodes.Add(test)
Next x
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Feb 8, 2011
How can I add check box to gridview and when checking select data items?
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Apr 16, 2012
I have an invoice that lists several items that one person has ordered. I want to take this invoice and every time I check the item it removes one of those from another list i created called item details. I added items to this list using the item collection in the listbox.. I have invoice one that has a pink sock ordered. when i clicked this box next to it I want my total pink socks of 12 to move down to 11... the detail page and the invoice are two separate pages.
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Feb 17, 2010
if i pressed the RadioButton .. ENGLISH.. only Teacher's which teach English will be displayed in the listbox and so on. there is in access table called TEACHER which has all these information. i used the following code for displaying the TEACHERS' name in listbox and it worked pefectly but what i want is displaying according to radiobutton checked.
Sub conxn1()
Connection.Open()
Dim da As New OleDb.OleDbDataAdapter("select * from Teacher ", Connection)
[Code]....
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Sep 25, 2011
So I'm using the following code to add items into my list box, and I'm trying to get it to check the contents of the list box as well.
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
If ListBox2.Items.Contains(TextBox3.Text) Then
MsgBox("Character already exists!")
Else
ListBox2.Items.Add(New LBnfo With {.v4 = RadioButton6.Checked,
[Code] .....
But when I try to compare the two:
If ListBox2.Items.Contains(TextBox3.Text) Then
MsgBox("Character already exists!")
Else
It doesn't show the message box even when the character actually does exist. I believe the problem is that I never do add the item really. I just use, "Return Me.character," which is assigned the value of Textbox3. So I just need to figure out how to check Me.character before returning it.
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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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Jun 5, 2009
when I load items in to a treeview, there's several items the same.Say it's like this:[code]How do I delete the duplicate items so it only shows subitem once?
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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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Oct 17, 2009
I need to know how it would be possible to arrange items in a context menu the same as the node in a treeview is arranged with the same text and everything.
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Oct 31, 2011
I've never really used the Check List Box in the past, however, for the recent program I am developing, I am using this control rather than individual check boxes scattered across the form.Anyway, I want to be able to program through code which items get checked in this checked list box. Specifically, I have a variable that contains the text of each check box that I want checked.With a normal check box, I can simply say:
Dim strNames As String
strNames = "John Doe, Mark Johnson, Mike Brown, Cindy Smith"
If strNames.ToString.Contains("Mike Brown") Then[code]....
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Sep 8, 2011
How would one go about checking a listbox's items for duplicates? Basically I need to write a program that displays the teams from a text file provided by my instructor, in alphabetical order. I can do that, but what I can't figure out is how to prevent the For loop from adding a duplicate team. What I'm envisioning is:
If teams(i).name is not in lstTeams.Items Then
lstTeams.Items.Add(teams(i).name)
End If
I have a program that compiles and works so far, except for the above problem and my alphabetical order (which I can probably figure out on my own:
Public Class danbrockteams
Structure team
Dim name As String
[Code]....
This works except that my listbox is filled with the team every player is in rather than just listing all possible teams. Not exactly looking for someone to just give me the answer, as I understand things best when figuring them out on my own, so I suppose a hint is what I'm really after.
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Jun 3, 2012
Using Webbrowser, I've managed to automate PDF downloads for several of the websites used by our company. I'm still a beginner at this process.Many of our PDF downloads, however, are from a Wells Fargo service called Wholesale Lockbox Image. The problem is that this Wells Fargo site expects the user to select items from a treeview as part of his query criteria. I don't know how to make Webbrowser select these treeview nodes programmatically.
Although I don't know anything about Java, the treeview is definitely a Java control. I know this for several reasons.(1) The instructions on the website specifically state that the the treeview won't draw until Java is installed.
(2) A standard Java splashcreen appears in the little treeview pane until the treeview actually begins to draw. The HTML code has an <OBJECT> tag which includes this attribute: ARCHIVE = "JWLTreeView2.jar"
Using Microsoft's mshtml library, I've tried looping through the elements on the page but can't find anything corresponding to the nodes in the treeview. I've also tried applying EnumChildWindows to the IE window, but here too I found nothing specific to the nodes. When I hover Spy++ over the treeview pane, it only identifies the pane as a whole, not the individual nodes.Furthermore, even when I select the nodes using my mouse, I don't seem to detect any corresponding alteration of the Webbrowser's HTML document (unless I overlooked it somehow).Does anyone have any suggestions on how to make Webbrowser select the treeview nodes programmatically?Oddly, I noticed that if the user saves the webbpage to his harddrive and then loads it into his browser from there, he can still see the treeview and select items (even without logging in to Wells Fargo), although if I bring the page home, the treeview is gone. I guess this means that IE is storing/caching the java file somewhere on the company machine, although I don't know if this fact would help solve my problem...
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Mar 12, 2010
How would i add all registry (subkey, parent, etc) items to a treeview?
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Jun 14, 2010
How do I display Items that are Checked from a treeView in a listBox using VB?
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May 11, 2012
How would i add all registry (subkey, parent, etc) items to a treeview?
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Jun 1, 2011
I am currently editing a big mass of items, which is taking very long to do. Even loading up my Treeview from a file is faster. What I currently have is this:
vb.net
Private Sub IncrementTreeviewNodes(ByVal Position As Integer)
While (Position < treeMeshList.Nodes.Count())
treeMeshList.Nodes(Position).Text = "Mesh #" + Position.ToString
Position += 1
[Code] .....
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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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Dec 15, 2010
How can I improve this bit below to make the items in the TreeView to sort faster or something totally different to sort them easier?
[Code]...
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Mar 25, 2011
I'm working with an Treeview and i'm new at it and i have 2 questions.
1. How can i save the treeview items, to settings (my.settings.history)
2. How can i save the treeview items as an TXT or XML file or another exception.
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