I'm trying to implement a way for users to specify which files they want to backup by typing in file extension into a listbox.But I'm a but iffy on how exactly to do this.
This is what I have so far:
Dim n as integer Dim extensions(n) as string for each fe as string in listbox1.items
Here I want to add *.txt or *.docx from the listbox as a string in the array above whilst incrementing n by 1 for each new string next How exactly do I do this?
how would you clear a listbox, like with a button.
View 3 RepliesI have this code which lets you choose a class, then enter 3 names into the roster listbox...the problem im having is with the btn grades...im using a nested loop but cant figure out how to get all 3 names into 3 seperate inputbox prompts to input the grades...right now its only showing the first name entered...how do you get the code to loop and go through whatever amount of students entered in the roster listbox into the grade listbox.
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If I set a ListBox.Height = ListBox.PreferredHeight when the control is hidden and IntegralHeight = True, then set it visible:
a) Actual Height reduces by typically 3-5 pixels after redraw (but not 1 pixel per item).
b) PreferredHeight does not not appear to give the correct integral of item heights.
Is there a way to make ListBox calculate the correct integral Height before the ListBox is made visible, so it can be correctly pre-positioned from bottom edge?
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
ListBox1.Visible = False
ListBox1.IntegralHeight = True
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This code bellow to compile a single listBox on form1 to listBox on form2 then listBox on form3.
I want to modified this code to compile 169 of ListBoxs on form1 to 169 listboxs on form2
and 169 listBoxs on form3.Try this code,not need the new coding.
Original code from JoOl and modified by John Anthony oliver
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1 when my listbox returns resaults it only brings back 10 how do I set it to return lets say 500
and question 2 is when I click on my links in listbox it's not opening webpage as I would expect it...
This is my code
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I have 2 Access databases;
Db 1 & Db 2, On the form is a list box which is data bound to DB1 'MainName', and a bunch of textboxs which populate from the record selected from db1 in the listbox.
In DB1 the 1st column is called 'MainName' and in DB2 the 1st column is also called 'MainName'
Now what im looking at is when the item in the listbox is changed, the record in the second database which has the same String in the 'MainName' column is also selected.
The route to take that i can see is having both databases added to the project , and have the listbox apply a filter on database 2 based on the selected item.
(im using 2 separate databases as when my project updates the DB1 also updates, but DB2 contains the users own strings so i don't want that to update as it would lose all there saved strings.I dont know much about lookup tables etc but they must all be in the same database right? so that rules them out, due to the update issue.)
I have the code which gets HTML code and puts it in a richtextbox with seperate lines.I would like the richtextbox to delete each line which doesnt contain a url in it.
View 3 RepliesI have this form and I want when any of the RadioButtons is checked, then some items appear in the list.
in the group box1 : I used this code Private Sub RadioButton1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton1.CheckedChanged, RadioButton2.CheckedChanged
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Each time when a user clicks on an item in the listbox (items are integers only), this item should be added in an array . Array should be sorted at each click from smallest to largest values and must be shown somehow .
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How to compare two listbox? I have two listbox one has a list of names and the other has a list of names too but I need compare the listbox1 with the listbox2 for delete from listbox2 all items existing in the listbox1 for example:
HTML
listbox1 Listbox2 Listbox2 after press a button
joel joel John
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I have a custom control type that inherits from ListBox. It is a list box where you can assign a ContextMenuStrip to each individual item, stored in a Dictionary object. To do this I also had to create a helper class that inherits from ObjectCollection to make sure the owning ListBox gets notified whenever an item is added or removed from the collection, so the corresponding entry in the dictionary can be removed.Now I have a problem that baffles me: Whenever I right click an entry in my EnhancedListBox, I get the following error on the line that has been marked red in the "InvalidArgument=Value of '1' is not valid for 'SelectedIndex'."(Of course, the value can be 0 or 2 as well, depending on which item in the list I click.)
I have checked, and there are 3 objects in the collection, in fact the current value of SelectedIndex was 1. The quotes are also misleading, the value I am trying to assign if of type integer, as is the current value of SelectedIndex.
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Ok i am on my webbrowsers favourites, and im looking to use a listbox so the user can have as many as they want. Also i want the listbox to show the Site Title, like so it just shows the title of that website. But then i wouldn't know how to navigate to that website if just the title is in the listbox How would i do this?
View 6 RepliesI've being trying to work out a problem i've being having for a while now and i'm not sure if i'm over complicating it.When a form loads, it uses a for next loop to load an array of peoples names into a list box. However i want to extract the persons ID once their name has being clicked. I can make this work by using another for next loop until the selected name matches the an array number. However it fails if there are two people of the same name.Is there a command or piece of code that can extract the row number of the item selected?
View 3 RepliesI am the kind of person who learns as they need it and this time I cannot figure this one out :SI have a listbox with n amount of items.I am trying to add n amount of items to an array and then save the entire array to a textfile.How should I go about this? I have Google'd around and code I have adapted or straight out copy-pasted (sad I know) is throwing all kinds of errors :S
View 5 RepliesDim mess As New MessengerAPI.Messenger
Dim msncontact As imessengercontact
Dim msncontacts As imessengercontacts
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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)
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The app I'm creating is about ordering pizza, this is a screen shot of the form.At the moment, I have only set up customer 1, when i enter in all the information and click total at the bottom it is supposed to then display all of this information in the listbox at the bottom. But when I click total nothing happens I have looked at this over and over and can not understand why. Here is the code that I am using.
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im trying to save a listbox with a few lines in it. Im using this:
save.InitialDirectory = "C:"
save.FileName = "List of needs"
save.Filter = "Text Files ONLY (*.txt) | *.txt"
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Im not sure what to put in W.Wrte() and i guess thats why i get a text file with this:
System.Windows.Forms.ListBox, Items.Count: 4, Items[0]:
I use this code to search items, using a textbox, in a listbox:
ListBox2.SelectedItems.Clear()
Dim count As Integer = (ListBox2.Items.Count - 1)
Dim words As String
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I have a listbox with multiple items:
Quote:
The Sopranos (Season 5) Boxset (DVD)
Braveheart (DVD)
MTV The City - Complete Second Season 2 (DVD)
I have a TextBox where a user enters a search:
The Sopranos Season 5 Since ListBox.FindString() wants a String and not a RegEx, I can't use a Regular Expression. (right?) So, if TextBox.Text = "The Sopranos Season 5", then ListBox.FindString(TextBox.Text) will not find my entry with "The Sopranos (Season 5) Boxset (DVD)".
I am trying to make a host so that as clients connect they will appear in a list box. I can get multiple connections going, but the list box remains empty.
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I tried to use this code but it will not show in my listbox
Form Load
Private Sub Choose_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If My.Computer.FileSystem.DirectoryExists("C:ACCOUNTSAccountUserlist" +
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I am developing one vb application. In that I have one list box. I want to add different types of Items. Like Different Colored and differently aligned text(Like one item item is right aligned and one more is left aligned). Can you please tell me how can i do the same.
View 2 RepliesSo I am trying to code something in vb.net 2010 which will have a list box. For example:
1) Apple
2) Pizza
3) Juice
How would I display Line number 2 or any other to the user - I tried doing it with a label box like this Label1.Text = ListBox1.Text(2) - does not work.
My program is running great with one little problem, it keep adding a zero to my listbox and the multiplication and sum result don't line up well. the result would be like: [Code]
View 10 RepliesAdd an ArrayList To Threaded Listbox i have been working on this for ages and cant get it to work. here is what i have so far... this gets dup sub to work in new thread when i click button2 the dup sub will filter through Listbox2 items and sort through the listbox and if it isnt a duplicate it will add the line to an arraylist i now need to the array list (decleared as arr) to go into listbox2 in short i need to make this line of code work as a crossthreaded call
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I've bound a listbox to a database; how do I get the value of the selected item out as a string? Something like
temp = listbox1.SelectedValue.ToString()
Only returns
"System.Data.DataRowView"
rather than the actual value.
I'm building some lists of selected values from listboxes; it's easy to retrieve the text like so:
For Each item In Listbox1.SelectedItems
ParameterList.Add(Listbox1.GetItemText(item))
Next item
What is the corresponding way to return the value rather than the text, in the event that they're different?
I want my listbox.items is come from a database. I use the listbox.datasource in that problem but when I run the program this is happen to my listbox..
This is the code of form_load
vb.net
Try
Dim con As New OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:UsersMaynielDocumentsVisual Studio 2010ProjectsSampleSystemUserAccount.mdb")
Dim command As New OleDb.OleDbCommand("Select Username from tblUserAccount", con)
Dim table As New DataTable
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How can I done when the user click an item to my first listbox it will open another listbox that category of the first listbox item..