Removing URL From List In Text File
Nov 12, 2009
I am attempting to get my program to store its, in this case, a Url list in a text file. This should be relatively simple and so far it has been, writing to the document has been easy and it has all worked well, however, I have been trying to get my program to remove a url from this list too. To achieve this I have created a temporary text file, named 'FavouritesTemp.txt' and write the content of a listbox (with the target of the delete command removed from it) and then replace the old text document with the new one. But I keep getting an error from this - saying that a process is already accessing this file, even though I have just created it! I have attached a picture of my error and the code I am using underneath.
Code:
System.IO.File.Create(My.Settings.ProgramInfoStorePath & "FavouritesTemp.txt")
MsgBox("Created FavouritesTemp.txt")
Dim FavouritesWriter As New System.IO.StreamWriter(My.Settings.ProgramInfoStorePath & "FavouritesTemp.txt", True)
For Each Item In FavouritesListBox.Items
[Code] .....
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Dec 3, 2010
I'm really stuck on something, which, is probably easy, but I've blown hours trying to figure this out.I need to be able to remove 1 line from a textfile. I will always know exactly what line it is, as, it's the same "string" as a variable. So if my variable is called "removeThis" then I need to be able to Read through the textfile, find the line that is equal to the removeThis string variable, and then rewrite the whole textfile.
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May 22, 2011
I am trying to remove all whitespace from a text file and store each character into an array. Is there any way to combine all the lines together without leaving any whitespace? I tried the .replace method but it only removes whitespace for each line. It currently shows like that, but I want it to be 1 whole block of text without whitepace in every line:
[Code]...
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May 29, 2012
I am in the process of developing a VB.net helper application that will combine two text files into one, remove the extra blank lines, do some calculations and spit out a new and improved text file.
My question is: at the beginning of each file is a header row that starts with a "01". How does one go about removing all of the other "01" rows but leave the first header line?
So far, I have succeeded at removing all of the "01" lines, which isn't what I want but hey, I got it to work
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Nov 11, 2010
I have been working on this for quite some time now. I have a listbox that loads the names from a .txt file. When the user selects names I need it to delete the items from the list. I have the code to remove it from the listbox, but when I reload the form it puts them back in because it's reading the file.
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May 5, 2009
I know this has been asked like a million times, but I cannot seem to find a solution that works for me. I have a text file..and lets say its named Test.txt.I have like a list of stuff in the file and I have a Remove button. I also have a listbox that has the contents in the Test.txt file listed on the form_load. So basically to try to explain this better..what I want is to delete the line that is selected in the listbox when I click the remove button. Let me explain in an example.The Test.txt has the same contents as the Listbox..so say my list is like this:
Hi
How
Are
You
If I have Hi as my Listbox.SelectedItem then I would like to remove that line from the Test.txt. I tried to load the contents of the file in a TextBox too and I can search and find the text in the textbox and focus on it and highlight it but I cannot delete it from there too.
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Aug 20, 2011
I'm trying to have a program remove lines from a text file if they start with a certain string. I haven't had much luck with this over the past couple of days so I thought I'd try and get some advice.
This is the code that I've tried most recently, and makes some sense to me, but gives a "A first chance exception of type 'System.ArgumentOutOfRangeException' occurred in mscorlib.dll" error:
Dim SourcePath As String = "C: est.txt"
Dim fileLines As List(Of String)
fileLines = New List(Of String)(File.ReadAllLines(SourcePath))
[Code].....
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Sep 4, 2010
I am reading a list of IP's from a text file. After every procedure, the first IP (the first line) needs to be removed, and the new first IP will be read at the beginning of the next procedure. Basically, I just need to know how to get rid of the first line of a text file completely. For example, I'd like to go from this:
1.1.1.1:80
2.2.2.2:80
3.3.3.3:80
[code]....
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Feb 23, 2007
I am writing an app that writes notes, inserted by the user, to a txt file. The app saves that notes to a txt file, and when opening it reads the file and shows the already inserted notes. However, I want the user to be able to delete some of those notes...but I can't seem to do it...this is what I have:
VB
Dim file As New FileStream(data_path & "notes.txt", FileMode.Open)
Dim text As String = Nothing
Dim reader As New StreamReader(file)
[Code]....
It goes fine, but the text.Replace(value, "") line doesn't seem to work. I've also tried text.Remove(0) but it doesn't removes the line...it looks like it has no effect.
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Nov 26, 2010
I have an Excel file that downloads automatically, but for some reason the binary XLS file contains some garbage HTML text at the end of it.
When opening the file in the Excel application, it shows a warning but proceeding will automatically remove the garbage HTML text.
However, I need to open the file programmatically. When doing so via
Dim wb As Workbook = Excel.Workbooks.Open(ExcelFileName)
It throws:
Exception from HRESULT: 0x800A03EC
a) Get Excel to perform a similar action as if I manually opened it and remove the garbage HTML automatically. NOTE: Tried setting the XlCorruptLoad.xlRepairFile parameter and it didn't work.
OR
b) Remove the garbage text from the XLS binary file (FileStream?) and resave it before attempting to open the file with the code mentioned above.
The garbage html always comes at the very end of the file and starts with
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Jun 10, 2011
I am using streamreader to read and streamwriter to write, I have put the lines into an array
[text file contents]
Remove [ ] *****************
-----
;this is -----
------
;this is another -----
[end of example file]
I want to remove the lines that start with "****" and keep deleting lines until i reach ";" I thought this would be simple but im missing something and I don't want to put this array into a listbox it is being writen to a text file.
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Feb 8, 2012
I'm trying to remove a line from a text file that begins with a set value.
The idea would be to paste values into a Windows form, which then finds each line that begins with that value (a 5 digit number) and removes those lines from the file, and then removes the gaps.
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Mar 24, 2010
I am using the following code to write lines to a file. I seem to get Zero's after my text.Any suggestions to get the trailing zeros out of my text file? [code]
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Mar 1, 2010
Ive got my text file all setup, how can i remove certain text from the file.i got text in there that basically says what the line is in relation to, and i want to remove that bit of text.theres about 8 lines,
textline reads as
subj = First Aid
Ques no 1
[code].....
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Jun 28, 2009
I've been working on this program all week and I've been able to finally get it to work except for one problem. The program is suppose to parse strings from a text box to a list box and then from a list box to a text box using the users choice of delimiters. I can't seem to figure out how to get the last comma off the end of the list. ie cat,dog,elf,It seems it should be easy, but since I've worked on this program so long I believe I can't see the forest for the trees. I don't want for you to do my work for me.
[Code]...
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May 10, 2011
My code is supposed to remove item from list but its not removing item.
[Code]...
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Jun 8, 2011
I have button that adds items to a list box and a button that removes it...the one that adds it works great but when i select an item to remove it doesn't remove it..i don't know if there's something wrong with the code or not..
Private Sub btn_Remove_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_Remove.Click
list_MyOrder.Items.RemoveAt(list_MyOrder.SelectedIndex)
prices(list_MyOrder.SelectedIndex) = 0
MsgBox("Select any item to remove")
End Sub
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Sep 26, 2010
I'm trying to remove an item from a TimeSpan list but I need a TimeSpan for the index? If I use a List(Of String) it works fine if I use an integer for the index, but if I use List(Of TimeSpan) it wants a TimeSpan for the index. I have declared a variable like so:
vb
Dim TempTime, TimeRemover As List(Of TimeSpan)
but when I try to remove an item from the timespan it says it needs a Timespan and not an integer. Say I have:
vb
For x = 0 To 3TempTime.Remove(x)Next
That doesn't work, but if I have:
vb
For x = 0 To 3TempTime.Remove(TimeRemover)Next
It will work How can I just remove an item from a TimeSpan list?
EDIT: Figured it out, RemoveAt was what I was looking for.
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Jan 31, 2010
I have a form with 2 listview's and I want to remove that items in the listview1 that area duplicated on the listview2.
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Dec 17, 2009
I have a generic list that I'm removing items out of using List.Remove(Object). I have been removing items but whenever I get to the fifth item I'm removing it fails and does not remove it from the list. It doesn't seem to matter what I'm removing but everytime I try to remove five items it fails on the fifth item.
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May 2, 2010
If I have 3 times selected and when I click "submit" for example I want all my selected items to be removed, but when I try to do this only my first selected item is removed.
ListBox.Items.Remove(ListBox.SelectedItems)
How do I remove all 3 items from the list box at the same time?
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Mar 19, 2009
How can I remove multiple Item selection from list box ?
Private Sub rf_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rf.Click
If Not (pb.Image Is Nothing) Then
[code].....
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Jul 26, 2011
i am a starter on VB(you can see that in the name),and i removed the RadioButton from the list.
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Aug 31, 2009
I have a button that when pressed I want it to remove all the ending urls that have ending with / just to remove / item on the end so it will live me a url with out / on the end if u know what I mean. [Code]
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Dec 14, 2010
Public Structure ReportOrderType
Public ReportName As String
Public ReportDate As Date
Public SaveFile As String
End Structure
[Code] ....
Basically, I have a list of reports. In one place they get ordered, and later on the program looks to see which ones have come back -- see if the .SaveFile exists on disk. If it exists, then that report gets processed, and then I want to remove that item from the list of reports-on-order. However, I get an error message back that by doing the .Remove(R), I've changed the list itself & things won't go well with the rest of the For Each loop, which makes some sense.
When I get to this routine, the list of ordered reports will be something from a couple of dozen or less, and some number of them (perhaps zero, perhaps all, probably a few) will exist & be processed & then should be removed from the list. How should I go about accomplishing this? This is my first time working with List(of t) as a Visual Basic tool; everything I've used in the past has been with arrays, and I can do this there.
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Mar 7, 2012
I have the following
Public itemArray As New List(Of ItemArrayStructure)
Public Structure ItemArrayStructure
Dim DisplayText As String
Dim Checked As Boolean
End Structure
If I know the DisplayText of an item in this array, how can I remove it?
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Oct 17, 2011
Imports System.Collections.Generic
Imports System.Net
Imports System.IO
[Code]...
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May 24, 2011
have a binding list which i want to be able to add and remove items.This is the class im using
Friend Class ExecutableItem
Public Property Text() As String
Public Property Method() As Action
[code].....
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Sep 29, 2010
I have a small requirement and that is as follows:
I am populating a ListBox using stored procedures and the ListBox is populated as follows:
lstItems.DisplayMember = "emp_name"
lstItems.ValueMember = "login_id"
lstItems.DataSource = accessFunction.getEmployees
The ListBox gets populated correctly. After it is populated, i have a CommandButton and on the click event of the button, i want to remove selected items from the ListBox. So in the click event of the CommandButton, i have written the following code:
lstItems.Items.Remove(lstItems.SelectedItem)
After selecting an item from the ListBox and when i click the CommandButton, i get an error as "Items collection cannot be modified when the DataSource property is set".
how i can delete items from the ListBox.
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Jun 12, 2010
I've searched on the Internet and I can't find a solution to this simple problem. I've also looked on Microsoft's MUCH improved MSDN site and haven't found a solution, so here it goes. I'm trying to remove an entry from a list of class and it doesn't get removed. Here's a sample of the code I'm trying: (I renamed the class and variable names to make it a simple example)
Dim lstClass As New List(Of TheClass)
Dim mClass As TheClass
I tried this first
mClass.filename = "The Entry to Delete"
lstClass.Remove(mClass)
[Code]...
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