VS 2010 Random Items From Listbox
Apr 20, 2012
I am wondering how i would go about taking multiple items (randomly) from a listbox and displaying them in a label!Now this listbox wouldn't have to be visible, maybe i can do it without it even being a listbox?I want to have 25 labels and each one recalls a random value from the list (doesnt matter about being unique and the list will contain about 20-30 items)Im just a bit stumped on how to do it as ive done some looking into it but most people are asking for randomized numbers or unique items where as i need randomized items from a list which aren't unique!
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Mar 12, 2010
so I am working on a program with items entered into a listbox. Then when the user clicks a button it will randomize the listbox items in just a random order obviously. I have tried adding it to an array and everything but I ended up just having to start over now because I couldn't find a solution. I can save the contents and everything I know how to do that it's just randomizing the items that I am struggling with. I have searched high and low and have yet to find a conclusion to my problem.
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Jun 12, 2011
I have two listboxes and one text box. lbxData is already populated with strings (ex; car, boat, motorcycle) I have a text box (tbxRandom) for user input to choose the number of random strings they want generated and placed in the other listbox (lbxRandom) when clicking btnRandom. Here is what I have but keep getting an error. mylist.addrange(str) "value cannot be null. parameter name: collection
Dim Str As String
'Declare a List
Dim myList As New List(Of String)
[Code].....
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Sep 21, 2011
how to go about picking the random weapons. When you generate a random class, the user must first enter their current rank (level). This is because you are unable to use certain guns until you reach a specified level. This keeps the program from giving out guns the user can't use. What I am doing is allowing the user to give certain parameters as to what type of gun they want to use (or don't want to use). For example, I have checkboxes for the user to pick if they want assault rifles, SMGs, LMGs, Snipers, Shotguns, RPG, etc.
I did this in another version of this program I made, but the only option was to pick whether or not you wanted RPGs included. So, it was easy enough to check if the weapon was an RPG and if it was simply generate another random weapon. I could do this, but with the number of options there are, I don't think this would be the best solution.
[Code]...
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Apr 28, 2009
I am using VB.NET (version 2008). I have two types of items populating in a listbox (checked listbox). For example: lets say one is type "A" and other is "Type B". Their names maybe same so if the user sees those items in listbox then he won;t be able to determine their type until he click on them and checks out its properties. I wanted that I add each item to listbox and colour them so that blue for example means type "A" is there and red means the other. So this way I will be able to know at a glance that how many item of what type is present. I guess it may not be possible to do that in a standard checkedlistbox. I am also using component factory's krypton controls which enhance the gui of an application. But I dunno if I can progress using that.
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Mar 28, 2010
I have a listbox were users can add items to. Then i also have a remove button which removes the selected item. The listbox also has a datasource, so to remove an item i uses this
[code]...
But i also want sorting on the listbox. But when i clicks the remove button, it removes random items, not the selected one. How can i fix this?
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Apr 22, 2011
[Code]...
The Textbox.Text will be a new Item in ListBox when Button1.Click I want button2.click to pick a random item from the listbox and display it as the label. Think of it as a random raffle picker lol.
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Mar 23, 2011
I've been working on a little project recently which is a music player (unoriginal I know, but I'm just learning ). Basically, I want the items that have been added into the listbox to be remembered for the next time the application is opened so that you don't have to re-add the items. The items show up like this (because they are added from my documents): C:UsersEthanDocumentsMusicCage The Elephant - Aint No Rest For the Wicked.mp3?
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Sep 23, 2010
i am trying to make a program that adds up all of the numbers in a list box and displays them in a text box, how do i do it?t
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Aug 5, 2010
I am using a listbox that is filled with a list of items from Database. When I am deleting an item from the listbox it is has to be deleted from Database, and that is all working fine.The problem is, even after deleting the item from the listbox, it is showing in the listbox, I have to close and restart the app to get the deleted item off from the listbox.
Is there any way to remove an item from listbox at the same time? I don't want to use timer to refresh is there any other way to refresh the listbox items???
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Jun 11, 2011
I am making a program, and I have a listbox which will contain A big list of file Paths. I have two buttons Add and remove. Adding items is easy and I have done this. But removing items is the hard part because the listbox is multiselect. I have tried so many attempts It wouldn't be useful to post code. But the closest attempt is
[Code]...
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Apr 29, 2012
Basically I need to remove Listbox1 items that are less then average, but its giving me:
System.ArgumentOutOfRangeException was unhandled
Message=InvalidArgument=Value of '9' is not valid for 'index'. [Code]
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Jan 6, 2011
I have a listbox control on my form that has SelectionMode as MultiSimple so I can select more than one item with my mouse. I added a contextMenuStrip to my form and added it to my listbox. I'd like the user to be able to select a few items in the listbox and when they right click > Copy it would copy the contents of the selected items to the Clipboard.
[Code]...
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Sep 2, 2011
I have this code to add Items to a Listbox:
Private Structure Bets
Public id As Long
Public name As String
Public size As Double
[code]....
I googled to find how I can change the items forecolor or backcolor. I want the items containing "Unmatched" to be one color and "Matched" another.
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Apr 23, 2012
basically i had this problem before which i fixed with this code!
'REMOVE TIME
If ListBox1.SelectedIndex <> -1 Then
Dim Box As MsgBoxResult = MsgBox("Are you sure you want to remove this time?", MsgBoxStyle.YesNo)
[Code]....
It worked perfectly, all ive done to my code since is change the way the listboc is loaded / saved, it now comes from a .txt in My Documents rather than the C drive.
It now only deleted the top value of the group selected int he listbox and not all of them as it did before.
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Feb 16, 2012
How do I disable buttons while there are less than 2 items in a listbox? I can't figure out how to do it. I'm a newbie in Visual Basic(programming at all)
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Aug 2, 2010
I want to get items into the ListBox from Database on FormLoad.
My code is:
database
Private Sub Models_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim qry As String
[Code]....
I am already having three models in database that has to be loaded in ListBox on formload.
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Apr 12, 2012
How would you sort the items only after the line but in the same listbox?
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Apr 9, 2011
how to write the items in the right listbox to a .txt file using StreamWriter. I need the output line to resemble:
"set sv_mapRotation map mp_abandon map mp_afghan map mp_boneyard map mp_brecourt map mp_checkpoint map mp_complex map mp_crash" The order should be just like it is in the right listbox.
This is the code that I have set up to begin this:
myWriter.WriteLine("set sv_mapRotation" + " " + """" + """")
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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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Nov 26, 2011
Ik heb met behulp van het volgende script de gegevens uit mijn listbox geexporteerd naar een ini file:
Private Sub saveButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles saveButton.Click
If SaveFileDialog1.ShowDialog = DialogResult.OK Then
[code].....
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Dec 11, 2011
I am using this code for save the items into a text file:[code]I want to save the items without blank lines like
-item1
-item2
-item3
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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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May 29, 2011
I have made a little application for me and my friend to be able to chat with eachother, but now we have some unclear strings as you can see on the image below:
I would like to change for example the username or time date to a color or make it bold, could anyone tell me how to change ONLY that and not everything? I'd love to have such a thing as it makes the whole application way 'clearer'.
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Feb 8, 2012
I have a list of links and need to check some data in it.
i placed all the list in a listbox and each item is verified for some result
now i want to see how many items are processed and how many are still need to process
Example: in a label it must display total count of items and items completed and it must change once a item is finished.
over view of my code is:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
For Each item In ListBox2.Items
[Code]....
Once an item is finished label must change the count.
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Jul 28, 2010
I am just wondering how I can make a listbox count the number of selected items and display it in a text label. My listbox selection mode is on MultiExtended.
Also, can someone provide the definitions for:
SelectedItem
SelectedIndex
TabIndex
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Apr 4, 2010
The class Random is out right defective. It always produces the same random numbers in the same sequence. Things I have tried so far is every kind of seed you can think of as well as Randomize. The result is that I always get the same random numbers in exactly the same sequence.
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Nov 26, 2011
I am practicing using the drawing commands, and have gotten a grass background and black happy face that moves around the background.It's a 10x10 grid of 50 pixels.I want (at the moment, when i press enter) it to generate a random number of trees (15 ~ 25) at random locations on the background. The program doesn't freak out about anything, and the variables seem to be right (using stop commands) but it's not drawing anything. Here is the code for the "GenerateTrees" command I have for when I press enter.
Private Sub GenerateTrees()
NumberOfTrees = Int(Rnd() * 10) + 15
For i = 0 To NumberOfTrees - 1
bmap.MakeTransparent(Color.Fuchsia)
[code].....
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Apr 19, 2012
I've made an image viewer which opens a random image from a specified folder, but the random number is not that random at all... I've already used Randomize(), but without result.
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Mar 27, 2012
So I want it to remove any text in the list box that has a "Job" in it and just replace it with a blank nothing.
Like if the listbox looked like this
Yardjob
jobsong
redjob
then it would change it to this
Yard
song
red
I also would like a way of removing any blank items from the listbox.
[URL]
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