VS 2010 Button Not Reading Listbox?
Nov 29, 2011
I figured a fix using if statements which lets me click the button without issues, except just 1; it doesn't read from the listbox. here's the code i'm working with
Private Sub Button5_Click(sender As System.Object, e As System.EventArgs) Handles Button5.Click
Dim a As New Random
[Code]....
I need it to be able to read from the listbox while it is closed, instead it just thinks that nothing is in the listbox, but when the form with the listbox is open, it reads from it perfectly, what shall I do?
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Dec 14, 2011
how would you clear a listbox, like with a button.
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Nov 29, 2011
I'm trying to get a random line of text to appear in a messagebox upon button click, I want the listbox to be closed while the action is to be performed.
I can do it when the listbox is open but not when closed, here is what happens if I try to do it when it's closed
and the message "InvalidArgument=Value of '0' is not valid for 'SelectedIndex'."
I tried reading it straight from the .xml file the data is stored on, but that didn't go so well either.
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Feb 12, 2012
I am starting to learn reading and writing to textfiles. One quick problem. My code here
'Read is the variable that will read the kp.txt file"
Dim read As IO.StreamReader
read = IO.File.OpenText("C:2/kp.txt"[code].....
however when it is read into the listbox those 3 words appear on one line in listbox
How can i make it so that each line of the textfile is placed in each line on the listbox?
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Feb 23, 2012
webpart vb.bet 2010 not visual webpart I want to grab the selectindexchanged, and run the code after button click. I only really need is the SelectedItem.Text
here's how I did it in VB.net asp page.
Protected Sub listbox_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles Click_button
But SharePoint doesn't see this as valid handle.
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Nov 11, 2011
I have a ListBox and a button. I want the button to be enabled only if the user has selected an item from the ListBox... How do I do this?
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May 6, 2010
how to upload an email list to the listbox component by using browse button?
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Jun 21, 2010
Well i got my codes so Checkbox and Textbox to read ini but i cant find how to make ListBox read ini like each line in the ini is 1 item on the listbox.
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Mar 3, 2012
i have halloffame.txt embedded on my project resources.trying to read is into a list box on form load event.the below code is showing ant error 'Path' is a type and cannot be used as an expression.
Private Sub highscores_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load ListBox1.Items.AddRange(Split(My.Computer.FileSystem.ReadAllText(Path & "halloffame.txt"), vbNewLine)) End Sub
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Jun 29, 2009
I am saving a ListBox to a file like this:
Dim Strm As New StreamWriter(FileLocation)
Strm.Write(ListBoxName)
Strm.Close()
How can I read the file that was saved back into the ListBox?
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Aug 4, 2009
1, Mulroney, Brian, 4000, 3, 259.2500, 300.00, 1265.7500, 75, 20002, Schreiber, KarlHeinz,8000, 1, 2227.0000, 2400.00, 10873.0000, 300, 160003, Clark, Glen, 4500, 0,12.3750, 337.50, 1525.1250, 75, 22504, Harper, Steven G., 20000, 3, 0, 0, 0, 0, 0so what I want to do is I wanna insert the four last names in the combobox when reading the file and displaythe data regarding each name in the listbox. so when you click on each last name in the ombobox, you can display the corresponding info for it in the list box..so my problem is1)I can only read one of the lines in the file(only for one last name). and therefore only one last name appears in the combobox.how do I read and insert the other three lines at the same time?
Private Sub mnuFileOpen_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles mnuFileOpen.Click
Dim FromFile As String 'To name any file that is to be opened
[code]....
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Aug 19, 2010
how I can read a specific line's value in a listbox.fx I want to read the value of line 4 in a listbox to add this value to an Integer, which I can subtract from another value?
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Mar 20, 2009
I need to read the contents of a text file to a list box. The coding I am using at present is:
Imports System.IO
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
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Aug 26, 2011
I have a "simple" question how can I get the first letter of the selected item in a listbox and put it in a textbox?
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Mar 6, 2010
I'm trying to read multiple values from a registry subkey in the CurrentUser key. I need to display these values in a listbox with multiple lines. I so far can only get one of the values from the subkey. I know (or at least I think I know) that I need to list the values in a string (with a possible loop), and then just display the string to the listbox. The subkey is the TypedURLs under CurrentUserSoftwareMicrosoftInternet Explorer Typed URLs. Here is my code I have so far (I did a year of basic VB as part of my Uni course).[code]
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Jun 3, 2009
This is my code:
Dim lngLines As String
Dim sr As New StreamReader(opdFileAudio.FileName)
While Not sr.EndOfStream
lngLines = sr.ReadLine
If lngLines.Contains("x") Then
lngLines = sr.ReadLine
[Code] .....
At the moment I want to read all lines in text file to a list box but I don't add strings x, and string y to listbox, and looping in.
lngLines.Contains("y")
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Jan 6, 2012
I can retreive all items in my notepad but when I am adding them up in my listbox, and trying to print them in the console. I can only display two strings. I don't know why. My string is a combination of a name, space & score. ex: "luke 300". That is the pattern of all strings per line in my text file. I am separating the name and the score using space as the indicator. When ever a space is found, string before and after the space is retrieved and added to the listbox
Here is my
scorelist = New ArrayList
reader1 = My.Computer.FileSystem.OpenTextFileReader(My.Application.Info.DirectoryPath & "scores.txt")
[Code].....
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Feb 20, 2011
Currently, my application will send the contents of a directory into a list box.
Dim folderDlg As New FolderBrowserDialog
folderDlg.ShowNewFolderButton = True
If (folderDlg.ShowDialog() = DialogResult.OK) Then
ListBox1.Text = folderDlg.SelectedPath
Dim di As New IO.DirectoryInfo(folderDlg.SelectedPath)
[Code] .....
For now, all that is inside the directory is a text file. I would like my program to read the contents of the text file and remove a set of common words, but I don't really know how to move forward here. Would it be best to create a class that holds a set of words that I would like to remove, then loop through the text file, remove any words that match those inside my class and then write what's left to a new .txt file?
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May 15, 2012
I�m currently working on a school project and I have encountered a problem in my code. When i write the contents of my listbox to a file called stock.txt it seems write an invisible linebreak in-between each data entry, my problem is that when I load my array on the next form those invisible linebreaks causes my array to load the data incorrectly.
I have attached a pic of my stock.txt file
The Code that Edits and writes to stock.txt
Private Sub BtnRemove_Click(sender As System.Object, e As System.EventArgs) Handles BtnRemove.Click
'Removes the selected item from the listbox then updates stock.txt
lbxStock.Items.Remove(lbxStock.Text)[code].....
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Sep 12, 2010
I habe a little problem with my code. After 4 years, I must now expand and adapt an old program with new features for Windows 7.I use the great snippet from Chris to query the members of a active directory group.Now I want to use a selected item from the Listbox for a further search, but it doesn't work. I check the selction with a Textbox, but I get an error message:"Invalid Conversion from DirectoryEntry to String".[code]Until now I was able to read the selected items from the listbox in a Textbox or a query.
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Apr 27, 2010
I have a multiple form application with a listbox on each form. I want to be able to select an item in one listbox on one form and then click a button and it show up in a listbox on another form.
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Aug 19, 2009
I am reading a txt file and displaying the contents into a listbox but it generates an empty listbox item at the bottom of the listbox. I am splitting the textfile each time it finds a new line in the txt file;
.Split(vbNewLine)
The problem there is always a blank line in the txt file at the end and so generates a blank list item. How can I remove this blank list item from the listbox? Is it best to try to remove the blank line from the txt file first or the empty list item from the listbox after the file has been read?
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May 17, 2009
I have a form with a listbox. I'm adding items to the listbox through a file that I saved. When I open the file, I want each line/string in the file to go in as a separate item in the listbox. I've gotten it to work so far but only with 1 string. I need to loop the part where the file is being read to be able to add all the strings that are within the file to the listbox. How do I do this? So far, this is the code I have:
VB .net
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click OpenFileDialog1.Filter =
[code].....
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Jan 7, 2012
I've got the following txt file:
[code]...
Now I want that presented in the listbox with the semicolon and it should be aligned per column so that the numbers, the names, the prices and the quantity are exactly aligned per column.If I read the file like this:
[code]...
Then the semicolon is not presented in the listbox and I don't have any alignment per column. As the names of the woods are not equally long the prices and the quantity are not aligned directly below each other...
My questions are:
1) How to add the semicolon in the listbox as seperator of the columns
2) How to align the 4 columns in the listbox (as I have an array Item(3) )
Later on I need to be able to change the quantity (last column) from 0 to > 0 (that's why I have to use an array)
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Feb 13, 2009
I have one radio button and one listbox .i want code for display listbox depends on the radio button check true and false.
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Mar 15, 2012
I 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.
[code...]
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Feb 4, 2009
Automatic Reading From A Swipe Card Without Using A Button
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Mar 18, 2012
I'm having a little trouble trying to read a word document in vb. how to get the text out of the word document would be great.
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Sep 7, 2010
the menu in the button is opened with click in the small down arrow, but NOT if click in the button image.
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Feb 4, 2009
My listbox has 19 lines, Is there a way to scroll down and show line 20-39 when I click a button? My application is designed for a touch screen so it is impracticle to use the scrollbar.
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