Delete Few Lines From The Text File Either With Line Number Or With Content?

Mar 31, 2009

i want to delete few lines from a big text file , normally this lines are at the starting of the text file , so it is possible that i can enter the line no from input box and the vb.net can delete that particular line number from the text file ,

[Code]...

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Storing Content Line By Line In Array Variale From Text File

Jun 29, 2009

i would like to store contents from a text file line by line to arrays before copying them to another text file. what i have is currently like this:

[Code]...

Currently I'm only able to store the whole content into one variable, would like to store the content line by line in arrays.

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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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VS 2008 Delete Lines In Text File?

Dec 27, 2009

remove line from text file?

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Delete Listview Items & Text File Lines?

Jun 18, 2012

i want to delete an item on a listview, this is my code

If ListView1.SelectedItems.Count > 0 AndAlso MessageBox.Show("Do you want to delete this item?", "Confirm", MessageBoxButtons.YesNo) = Windows.Forms.DialogResult.Yes Then 'make sure there is a selected item to delete
ListView1.SelectedItems(0).Remove()
End If

now my problem is i want to delete that item on the text file line

( using streamreader and streamwriter)

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Delete The First And Last Lines From A Text File In Visual Basic?

Jan 20, 2010

I've seen posts on deleting the lines from a text file that are specified as a function parameter, but I only need to delete the first and last lines from the file.

I'm still a newbie when it comes to working in files, but it seems that it should be simple to delete the first line... Just delete all text from BOF to the first CrLf character. Am I right?

As for the last line, I understand that I'll have to get a count of the lines in the text file to find it (as the file won't always be x amount of lines long).

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Number Of Lines In Text File?

Sep 4, 2011

Is there a way to see how many lines are in a text file? This also includes blank lines. I have seen a lot of code in this forum before related to my question, but they stop if there is a blank line. I want it to be so that if there are like 10 blank lines

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How To Count Number Of Lines In Text File

Dec 9, 2011

Basically, every time an entry is made - all of the proper data gets put out to a central Listings.txt file and then a specific .txt file for that area. When the user enters the recall form, they can view the listings for all or whichever area they've selected. That works quite fine. However! We also need to include a summary of how many are in each section. Not thinking properly, I started to do this with a counter - until I realized that a counter will lose its value once the program shuts down. My current idea is to count the number of lines in the text file (it outputs 8 lines per listing, so everything would be in values of 8) and then divide that by 8 - but after some searching I haven't been able to find a piece of code that will allow me to get an integer that relates to the amount of individual lines in the file.

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Select Random Number Of Lines From A Text File?

Jan 15, 2012

Im making a text based game that i need to randomly select different numbers of lines from a text file then pass them to a list box.[code]...

First the code needes to identify the 4th element then randomly select lines from lines that contain that element. The code needs to work out how many lines have a matching text to the 4th array then randomly select lines from that total no need for a maximum limit to that number.The same line must only been show the once at a time, but It can then be shown again on a different button click.[code]...

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Count Lines Of A Text File (NOT EVERY LINE) Situated On A Server

Feb 9, 2011

I have a text file on a web server. Every line of the text file ends with "g]" or with "a]".I would like to count the lines that end with "g]" and the lines that end with "a]".Before I hade two seperate files and I used the following code for counting.But now I decided to put everthing into a single file:[code]

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Count The Lines Of A Text File (NOT EVERY LINE) Situated On A Server?

May 8, 2011

I have a text file on a web server. Every line of the text file ends with "g]" or with "a]".I would like to count the lines that end with "g]" and the lines that end with "a]".How can I do that?Before I hade two seperate files and I used the following code for counting.But now I decided to put everthing into a single file:

Dim client1 As New System.Net.WebClient
Dim file1 As String = client.DownloadString("URL/file1") 'lines ending with "g]"
Dim lines1 As String() = file1.Split(Environment.NewLine)

[code]....

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VS 2010 - ReDim Array By Number Of Lines In Text File

Mar 15, 2012

As you will see from the code below I need to be able to tell before the array runs how many members of the array there are or else the program will crash. How can I redim the array depending on how many lines are in the text file (RECORDS.txt)

Imports System.IO
Public Class Form1
Structure Nation
Dim name As String
Dim continent As String
[Code] .....

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VS 2010 ReDim An Array By The Number Of Lines In A Text File?

Dec 23, 2011

As you will see from the code below I need to be able to tell before the arrayruns how many members of the array there are or else the program will crash. How can I redim the array depending on how many lines are in the text file (RECORDS.txt

Imports System.IO
Public Class Form1
Structure Nation

[code]......

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Go To Specific Line In A RTB And Delete All Lines Above?

Jan 16, 2010

I have a RichTextBox.

I want to input an integer and the RichTextBox to go to that line and delete all lines above it.

For example, if I have 100 lines in the RTB, and I specify "25" as the integer, I want lines 1-25 deleted and for the RTB to keep 26-100.

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Delete A Line From A Text File In Program08?

Apr 26, 2012

I am working on a program with a list box that displays text from a selected text file. I have already made it to delete the item from the listbox but I don't know how to get it to delete that same line from the text file so it doesn't just display it again when you reopen the dialog. Any help? I am using streamwriter and streamreader.

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VS 2008 Delete Line In Text File?

Jul 6, 2009

I have a routine that will check a text file for a line to be deleted and deletes it when found. Now the problem i have found is that the lines can be slightly different depending on what the user has done. Now in the TXTSETUP.SIF which is a file in the Windows Source you have the following lines FIG 1. FIG 1: It may look like this: ascent.jpg = 1,,,,,,,,3,3autumn.jpg = 1,,,,,,,,3,3

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Game Programming :: Selecting Random Number Of Lines From Text File?

Jan 12, 2012

Im making a text based game that i need to randomly select different numbers of lines from a text file then pass them to a list box. The text file is made in the following format:

20058,v,o,ED,95
20059,v,o,TI,95
20060,v,o,TI,95
20061,v,o,SL,95

First the code needes to identify the 4th element then randomly select lines from lines that contain that element. Im stuck on how to randomly select lines from that list.This is the code i have so far.

[Code]...

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Delete A Line In Text File That Ends With A Certain String?

Jul 9, 2009

Deleting a line from a text file. This is for an ASP.net Webpage. I will have a file called Sources.txt. Example data of this file looks like this[cde]...

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Delete Specific Line In Text File Using Console Application

Jan 15, 2012

I am writing a program that manipulates text file using console application. What I want to do is to delete 1 specific line based on the ID entered by the user.[code]My program should delete the line with the ID DR-02, but my program deletes items from DR-02 to DR-04 instead of DR-02 only.[code]

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VS 2005 How To Delete A Line By A Line Number

Aug 16, 2009

You would think a search for this would show some results but I have had no luck.If I want to delete a line by a line number from a text file, how do I do that?

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Get The Line Number Of A String In A Text File Vbscript?

Aug 25, 2011

i want to get the line number of a text file that contains a particular string data.

1. using the string data like str="book"
2. find if the string is part of the file
3. get the line numbers of where it occurs.

eg
filename=sample.txt
sample.txt contains
dance
book

[Code]...

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File I/O And Registry :: Replacing Text On Specific Line Number?

Oct 2, 2011

I am trying to figure out how to replace text in a text file on a specific line number. (for testing, line number 4).

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VS 2010 Text Box/file Search And Find Line Number?

Jun 5, 2011

I'm new here, but have been in and out for a while. Past threads have been helping me along thus far.

I'm currently developing an app which essentially needs a way for me to search in a text box or file for a specific string, and extract the line on which that string appears on. It will be unique, and the syntax is the same on each line. It has basically 2 ID numbers, and is laid out like this:
123456|123456

So, I'd need to search for the first part before the |, and then get the line so I can get the bit after the |, which is the important bit for me.

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Read Text File And Display In Listbox And Also Count Number Of Line In It?

Aug 25, 2009

When the user clicks the Process Files button, do the following:

Read and process the contents of each of the 6 files.

Each file contains data in a different format.

and display them in arrylist. In the list it should contain name of the file and number of person in the text file example below.[code]...

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Sql :: Find A Specific Line Of Text In A Text Document And Insert The Next 37 Lines Of Text Into A Database?

Feb 5, 2011

I have an SQL database, and 50 text files, and Visual Basic 2010 Premimum,I need to find a specific line of text in the text files and then take the next 37 lines of text and save them in my database. I need advice as to point me in the right direction

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VS 2008 Create An Error Log System Which Will Log All Errors To A Text File With Line Number

Jun 29, 2010

How to create an error log system, which will log all errors(caused in my app) to a text file with line number, sub/function in which the error occurred, error details, etc. ?

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Code That Will Delete Content Of Text Box On Button Click

Mar 6, 2009

Is there any code that will delete the content of a text box on a button click.Eg,On button click clear textboxes in form1?

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Code For "Delete A Line From Text File"?

Sep 2, 2008

tell me where what is the code for "Delete a line from text file" command?or a website to look for it?Searched the delete line but i only got VB6 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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Display The Content Of The Text Box According The Number Of Records In The Database?

Aug 5, 2009

I am trying to display the content of the text box according the number of records in the database. When i do it manually it works but when i do it through the "for" loop i am confused. my code is as below

For i = 0 To total_rec
fname1.Text = ds.Tables("roster").Rows(total_rec).Item("FirstName")
lname1.Text = ds.Tables("roster").Rows(total_rec).Item("LastName")
Next

Now i want to change the index of "fname1" some thing like "fname(total_rec)" but it does not work

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