VS 2008 Check All Items In A Listview
May 7, 2012
ok in vb6 i would use this to check all items in a listview.
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Now Here's my confusion. And i spotted at least one other person on here who was asking the same thing about this.But got no real clear answer that i could see. as a test to compare i tried his suggestion and loaded the same listview up in both a vb6 app and a vb.net app..The list i used was quit large so the comparison would be very through..my list was in the 80,000 lines range tho..yeah talk about overkill The vb6 app checked/unchecked the items within a matter of milliseconds..the vb.net took an extremely long time tho..well not extreme but was very noticeably slower about doing the loops.
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Aug 24, 2009
How can I check if a ListView has items that are not in its visible area?
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Mar 29, 2010
How can you check all the checkboxes of all the items in a listview?
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Apr 28, 2012
I need to loop a ListView and check each items imageindex. If it is a 5 or 6 change it. What i have so far...
Array.ForEach(lvw.Items.Cast(Of ListViewItem)().Where(Sub(lvi) lvi.ImageIndex = 5 OrElse 6 then ......))
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Sep 27, 2011
i have a listview box full of items, image below:
when i click a button i would like a msgbox to pop up displaying how many are alive.
How would i do this ?
Also how would i remove all items that status is "Dead"
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Mar 27, 2011
If tbquantity.Text = "" Or tbdescription.Text = "" Or tbprice.Text = "" Or tbproductcode.Text = "" Then MessageBox.Show("Please Select Items", "Empty", MessageBoxButtons.OK) Else If lvadd.Items.Count = 0 Then lv = New ListViewItem(tbproductcode.Text) lv.SubItems.Add(tbdescription.Text)
[code]....
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May 3, 2009
I have a listvew that is setup like:
[COLUMNHEADER1] [COLUMNHEADER2] [COLUMNHEADER3]
[CHECKBOX] Graham
[CHECKBOX] Greg
[CHECKBOX] David
What i was trying to do is put text in [COLUMNHEADER3] besides each of the names, so if "Graham's" details exist then put "PASSED" beside the name "Graham" and "FAILED" if it's failed, i'm not sure how to access the 3rd columns details to put that in is it:
formname.listview1.subitems("")
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Sep 27, 2011
how do i add color to listview items.
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What im wanting is for "Alive" to be green and "Dead" to be red. how would i do this ?
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Jun 7, 2009
I have a listview with 5 columns want when i click a button to merge some items into each other, like this:
I have 20 items in it. When i click the button it should look after items with the same text in the 2 column.Say it found 3 items that has the same text in the 2 column. Then it should the integers from the 3 column and add to each other.
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May 31, 2009
I call the following
VB.Net
Public Sub LoadXML(ByVal file As String, ByVal ListViewName As ListView)
Dim XMLfile As New XmlTextReader(file)
[Code].....
However, no errors are shown, the items are not added to the ListView. Also, if i check the values of "artist", it is populated, as are the rest. It just, for some reason, does not add to a listview on another form.
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Jan 18, 2010
I have a ListView object with the View property set to Details. I also have the CheckBoxes property set to True. When a user clicks the checkmark I have it run through some code in the ItemCheck event. Assuming the checkbox is
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With the code above, the check box still changes state regardless (Checks and unchecks). How can I force it to stay with the current state before the user clicks on the checkbox?
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Oct 15, 2010
I'm a student and I have a small project to create for my VB class. For the personal touch, I tried using a ListView to manage a SQL database (on a remote web server).What I need to do right now is determine how many items are selected (if more than one, enable delete and edit buttons, if more than one, disable edit button). I searched a lot for that, but didn't find anything working with me.Do you know a simple way I could get the number of items that are selected in my ListView?
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Nov 13, 2009
I have a listview that I add items to by loading from a file, and that works fine. I then edit the items or add new ones, and on form dispose, the file is supposed to be saved containing the listview items, but when I step through this process, mylistview.items.count is said to be zero, which I know is not true because I can see the items right on my screen, I added them myself.[code]I use this same method for saving and loading to and from listboxes, and it works fine.
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Jan 7, 2009
what I want is to select random items from a CheckedListBox and then print them to a sheet of paper. I also want to define how many random items are checked via a TextBox. Let's say I have 50 items in the CheckedListBox and I want to randomly select only 10 (more or less - user defined via the TextBox) of them and print them to a sheet of paper.
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Feb 6, 2012
I used the given below code to find the items of listview in my form[code]...
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Mar 26, 2009
I am currently using VB 2008 and there is a form I'm using which contains a listview control. I am dynamically filling the listview with groups and items. After I fill it up, it is supposed to look like this:
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Each item is specific for each group. The problem I have is that when I maximize the form to full size, and everything expands, the items change positions into something like this:
[CODE]...
How can I make the listview keep the items in the "row" view always, instead of the "column" view whether I maximize or not?
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Apr 22, 2011
I need to loop inside listview and its columns Sub Items. I'm currently using this.
For Each item As ListViewItem In ListView1.Items
For Each si As ListViewItem.ListViewSubItem In item.SubItems
Next
Next
But it over loops on the items causing the code to produce incorrect tasks.
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Apr 18, 2010
Why doesn't this restore the last selected items in the ListView?
[Code]...
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Jun 5, 2009
How can I save all the data stored into a ListView? (All the text stored in a row)
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Jan 16, 2010
I'm trying to create an inherited version of the ListView control that (among other things) should have a different background image if the listview is empty to if it has items.Obviously you can easily enough test the count of the collection, but I need to be able to react to the event, however there doesn't appear to be any event related to adding/removing items.
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Nov 16, 2009
I am very new to Visual Basic, and I need to add items from my database to the ListView control. I have a table in the database called tblChannels that I would like to draw the information from and populate the ListView control in VB, in the form of a column. I currently am unsure about how to go about doing this. Previously I have created combo boxes that draw the information from the database, but trying this method for the ListView does not work how I want it to.
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Jul 29, 2010
I'm gathering a list of files within a directory and then adding them to a ListView:
VB.NET
For Each f In Directory.GetFiles()
Dim lvi As New ListViewItem
lvi.Text = f.Name
[code]....
The exclusion list works great, but it duplicates each item in the ListView several times. How many depends on how many items that it excludes.
I understand why it's happening, but I can't figure out a way around it. I have to loop through the items in the ArrayList so that I can compare them to the other items.
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Mar 17, 2009
ok, I have a "sum" for ading the total prices in list view. The prices are in the sub items. After they are added up ( they display as total: �{0}) how would I save them to add up later amongs other things I have saved in my.settings???
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Feb 3, 2010
I have some code which addes values into the items and subitems, which works fine.
vb.net
Case "Aa en Hunze"
Dim Lvi00 As New ListViewItem(New String() {"naam", "blabla"})
Dim Lvi01 As New ListViewItem(New String() {"adres", "blabla"})
Dim Lvi02 As New ListViewItem(New String() {"postc/plaats", "blabla"})
[Code]...
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May 18, 2011
I can't claim credit for this code but I think it's cool. It will show the entire contents of an item in a tooltip even when the columns are truncating it. Drop a tooltip and listview container on your form with the default name.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
ListView1.Clear()
ListView1.View = View.Details
[Code] .....
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Oct 11, 2011
I have a ListView in which the items in the first column are selectable with a mouse click. How to I make these items non-selectable?FWIW, I've dug into the properties for the ListView but not been able to find which parameter is the right one to change.
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Jul 23, 2009
I have a program that is reading and writing to certain memory addresses to a particular application exe...
So I have a listview control with 4 columns and X rows
| Name | Address | Type | Value |
Name: Is just an identifier so the user knows what it is.Address: Is a specific memory address (eg 0058AFA0).Type: Type of value stored in the address (eg, 4 Bytes, Float).Value: Value to store in the address.Im looking for a way to go through each row, take the address and use this to read the value at that address and then update the value on that row
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Nov 24, 2009
I have a list view control and for each item I set to display an icon it will change the icons for the other items that already have icons, to the most recently added icon.
Here is my code.
vb.net
Dim ext As String = Strings.Right(e.Item.Text, 4)
Dim fileandparam As String = IconsInfo(ext).ToString
[Code].....
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May 4, 2011
Have a populated listview with check boxes. If the item is checked I want to send it to report for printing. This code is bypassed:
Code:
Private Sub GetSelectedItems()
If Not Me.ListView1.SelectedItems.Count = 0 Then
[code]....
Count is always = 0. This seems to work only if the item is double clicked. And then only one item is returned in the msgbox. MSDN says "The SelectedItems property will not contain any items if the property is accessed before the ListView handle is created, which typically occurs when ListView is initially loaded for display in the form. You can check to see if the handle is created with the IsHandleCreated property."
When I tried to check for the handle, an error said something about overloading. So I added this:
Code:
Public Overloads ReadOnly Property GetSelectdItems()
Get
If Not Me.ListView1.SelectedItems.Count = 0 Then
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Which does not help. How to find the items checked/create the needed handle?
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Feb 27, 2011
i made a media player program and i am having many problems! the main issue is that i have a listview that displays music playlist, how can i get it to navigate to the next item after the clicked one is over that way users don't have to click on the next one to continue their playlist?
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