Remove Duplicate Lines In A Text File?

Jan 7, 2011

Having trouble removing Duplicate lines in a text file. (Exact Duplicate lines).

If I have a text file called animals.txt, how can I use the StreamWriter to loop through a text file, and erase and duplicate lines?

For example: If the text files says this...

cat
cat
cat
dog

[Code].....

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(merge - Remove Duplicate Lines And Store) Two Text File

Nov 24, 2011

this is the code working 100% for (merge , remove duplicate lines and Store ) two text file using vb.net Imports System.IO Public Class Form1

[Code]....

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Compare Textboxes And Remove Duplicate Lines/text?

Nov 20, 2009

Compare textboxes and remove duplicate lines/text..

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Remove Duplicate Lines?

Aug 16, 2009

2.0 28 Blue (2 14.00 63.0) [2 12.43 54.3] 42111 9275 55111 -1725
2.0 28 Blue (2 14.00 64.0) [2 13.50 55.3] 40611 9275 53611 5775
2.0 28 Blue (2 14.00 58.0) [2 12.21 54.3] 49611 9275 55111 -3225
5.5 28 Blue (2 20.00 17.0) [2 13.50 26.3] 111111 51275 97111 5775

[Code]...

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Deleting Duplicate Lines In A Text File Using An Array

Sep 27, 2009

I am adding line entries in a .ini file. The problem is, I am creating duplicate lines in the file, which I do not want to do. I searched this issue online, and the consensus is to use an array, loop through for duplicates and create a new file. However, being so new at this and teaching myself how to code no less, I am at a dead end. This is not a school project, it is something I am doing for work on my own time. I have all of my code done for the program except for this last step.

[Code]...

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Remove Lines From Text File?

Jul 22, 2009

I have lines like this in my text file

10.0 28 Black (2 01.00 15.0) [1 06.81 58.3] 114111 -81725 191654 -41066
10.0 28 Black (2 01.00 15.0) [1 06.81 58.3] 114111 -81725 191654 -41066
11.0 28 Black (2 06.00 01.0) [T375 ] 135111 -46725 188611 35775

[Code]....

I want to remove all the line which contain [Txxxxx..] and place it in another file. i want to be do like cut and past. Is that possible. Can we remove lines in text files?

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Remove Lines That Repeat In A Text File For Program?

Jun 30, 2009

How would you program it in VB 08:

What i have here in my text file is[code]...

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VS 2008 Remove Blank Lines From Text File?

Oct 1, 2009

I have a text file that I'm reading into a listbox. I want to skip a line if it's blank. The following code works if I leave out the check for the line being blank. It puts the file in the listbox with no errors. However, when I include the If statement that checks for the line being blank, I get an ArgumentNullException in the Items.Add line when It gets to the end of the file.

'Read Multiline File
Dim FILE_NAME As String = "C: empliz-etsy.txt"
'
If System.IO.File.Exists(FILE_NAME) = True Then

[Code].....

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FileStream Was Not Writable Error - Remove The First And Last Lines From A Text File

Jan 20, 2010

I'm trying to remove the first and last lines from a text file. Obviously the last line will be at an undetermined position (i.e. line 50 or 5000). I couldn't figure how to remove the lines, so I wrote code that would rewrite every other line:

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Visual Basic 2008 Remove Duplicate Text From Textbox?

Sep 1, 2009

I was just wondering if someone could show a code sample that will remove any duplicate text from Textbox1.text (with multiplelines).

I need to remove the sentence "Send a private message to" and prevent it from entering Textbox1.text.

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Remove Lines Containing Specific Text

Jun 10, 2011

I want to remove the lines that contain specific text. (Whole Line)

[Code]...

So textbox1.text will become and remove whole line that contains the word "daniweb"

[Code]...

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Remove Lines In Text With No Characters?

Oct 27, 2009

I am trying to automate the removal of lines in a text box with no characters or numbers. I have the following code, but it is not working.

Code:
Private Sub RemoveBlankToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RemoveBlankToolStripMenuItem.Click
Dim tmp() As String = RTB_01.Text.Split(CChar(vbNewLine))

[code]....

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Find / Remove Lines Over Text Length?

Aug 22, 2010

I need to go line by line through a text file as well as a listbox and remove lines over x amount of characters as well as adding the number of skipped lines to a label. I am trying to use a listbox in this example but it is not working correctly. What I am I doing wrong? First it will only remove an item when it is highlighted (focused) how can I make it so that is not required?[code]...

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Remove Blank Lines And Specified Text From A Listbox?

Jun 10, 2011

remove blank lines from listbox?And remove specified text from listbox (text line that i can specify in form code(But if i specify to remove line something like [URL] it will remove the line [URL] but doesn't remove line [URL].

My code for adding items to listbox is:

Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim PageElements As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("img")
For Each CurElement As HtmlElement In PageElements

[code].....

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Remove Lines Not Containing Specific Text From A TextBox

Jul 4, 2010

I'm making a button to delete lines not containing specific text.

For example, if the text is "test". I want to remove all lines not containing "test" in it.

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Regex Regular Expression To Remove Lines Which Start With Certain Text?

Mar 24, 2012

I know it may be quite easily for you. i have a text which contains 40 lines, I want to remove lines which starts with a constant text. check below data.

When I used (?mn)[+CMGL:].*($) it removes the whole text , when I use (?mn)[+CMGL:].*(
) , it only leaves the first line.
+CMGL: 0,1,,159
07910201956905F0440B910201532762F20008709021225282808
+CMGL: 1,1,,159

[Code]...

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Get A Bunch Of Lines From A Text File (they Will Be Filenames Eventually) Which Are Split By New Lines And Puts Each One Into An Array?

Jun 22, 2010

I have written a simple script to get a bunch of lines from a text file (they will be filenames eventually) which are split by new lines and puts each one into an array..

Dim ary() As String
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If My.Computer.FileSystem.FileExists("C:MenuFiles.txt") Then

[code]....

The only thing I can do for now is either use the substring function to remove the first character from all array values after 0 but I don't like that because it's messy and what if the split "works" as I want it to one one of the lines and knocks of the first character when I don't want it to.

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Read Lines From Text File 1 And Delete Those Lines From Text File 2?

Sep 15, 2009

I have a text file containing lines of data (File 1). I need to delete all the lines in another text file (File 2), which are found in file 1.So I could read file 2 line by line. And then once the line has been read, read file 1 line by line to search for a match. But that's going to be painfully slow.Or I could read file 2 into memory. And then read file 1 line by line and REPLACE the lines in file 2 with nothing, therefore deleting them. File 2 could be 100 mb, so I'm not sure about reading it all into memory.

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Remove Duplicate Items But Leave At Least One Of The Duplicate Items In The List?

Mar 27, 2012

I have a List object and I want to remove the duplicated items but leaving at least one of the duplicated items in the list;I wrote something like this however I would optimize this code for better performance, is there something faster?

Const chars As String = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
Dim rnd As New Random()
Dim mylist As List(Of String) = Enumerable.Range(1, 100).Select(Function(i)

[code].....

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Delete The Duplicate Lines?

Jul 30, 2009

i have lines like this in my text files.

2.0 28 Blue (2 14.00 63.0) [2 12.43 54.3] 42111 9275 55111 -1725
2.0 28 Blue (2 14.00 64.0) [2 13.50 55.3] 40611 9275 53611 5775
2.0 28 Blue (2 14.00 58.0) [2 12.21 54.3] 49611 9275 55111 -3225
5.5 28 Blue (2 20.00 17.0) [2 13.50 26.3] 111111 51275 97111 5775

[code]....

This are some of lines in my text file.they are duplicate lines in the tex file. I want to delete the duplicate lines because i only want the lines which have [T1],[T2....]... i higlight all the matching lines.

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File I/O And Registry :: Read One Text File And Put Lines In Different Text Boxes?

May 12, 2009

i have 5 textboxes in a form. I have a streamwriter that writes all of their text to on text file like this:

Code:
Dim xfile As String = Application.StartupPath & "/Set.txt"
If File.Exists(xfile) = True Then
Dim writex As StreamWriter = New StreamWriter(xfile)

[code]....

I was wondering how to get the text under the each number and place it in the corresponding textbox.

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Find Duplicate Strings In Text File?

Jun 30, 2010

I have a text file DIC.TXT.[code]...

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Delete Subsequent Duplicate Rows In A Text File

Jun 30, 2010

I'm going nuts with this. Obviously I cannot open the reader ard writer on the same file simultaneously.

[Code]...

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How To Remove Duplicate Resources

Oct 27, 2009

How to remove duplicate resources...

I get this error

"there is already another resource with the name....."

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Remove Character From A Text File And Prevent Crash W/ No Text File?

Apr 7, 2011

All I would like to do is remove one character from the line of the text file that I am reading, which is the first character and also prevent the program from crashing if no text file is present.Here is the code. Can anyone notice where I am going wrong? I thought the "if" statement would cover the crash but it didn't. Clueless, but sort of have an idea on the character removal.

Private Sub RadioButton_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton.CheckedChanged
Dim fileReader As System.IO.StreamReader
Dim lineRead As String
If RadioButton.Checked Then

[Code]...

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Array - Remove Duplicate And Original?

Apr 11, 2010

I've come unstuck on a certain point. I am trying to find a way to compare two lists and output only lines which are unique. In other words, remove both occurrences of duplicate lines.I'm relatively inexperienced with VB.NET, but this is how far I have managed to come;

Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim LinksList1, LinksList2 As String
LinksList1 = Replace(RichTextBox1.Text, "#vch", "") : LinksList2 = Replace(RichTextBox2.Text, "#vch", "")

[code]....

1) search the array to find duplicates and add them to a second array, then have a second pass to remove anything which matches the second array.

2) search the array for one duplicate and store it, then search the array again to remove the duplicates, and run that process until there are no more duplicates.

Then again, I could be going about this completely the wrong way. If that's the case, feel free to knock some sense into me.

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Custom Duplicate Remover - Remove ALL From Box

Jun 5, 2011

How to make an code to works in that way, if the word is on box1, remove ALL from box2. Theres 3 box and 1 button like that.

[Code]...

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Datagridview Remove Duplicate Rows

Apr 8, 2010

My browser application has an option to display all the "href" elements of a web page in a datagridview.

I use the code below to populate the datagridview.[code]...

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How To Remove Duplicate Item In Listview

May 28, 2012

i don't have any idea how to remove or prevent duplicate item in a listview when ever you update it or insert value to your data base.

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Remove Duplicate Treeview Items

Jun 5, 2009

when I load items in to a treeview, there's several items the same.Say it's like this:[code]How do I delete the duplicate items so it only shows subitem once?

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