I want to modify a text file. It has a lot of lines of text in it. I want to add a line after a specific line (in the middle on other lines) and write strings there.
The code i have, writes to a specific line but it also overwrites the text on that line:
[Code].....
i need my program to enter text into a txt file but, i can not seem to find out how to make it press enter, and i what i mean is my program adds to the text like this...[code]
View 2 Repliescan somone just post a code of
1. Writing the last line of .txt into textbox1
2. Adding line from textbox to .txt
the following code was to be entered to read each line of the file "line by line" It did not work for me as instructed and I am trying to understand why?
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim FILE_NAME As String = "C:UsersOwnerDocuments est.txt"
Dim objReader As New System.IO.StreamReader(FILE_NAME)
Dim TextLine As String
[code]....
how to read text from a listbox line by line and put current line in a label?
View 3 RepliesIs it possible that when a new line (anywhere in a richtextbox) is added/deleted, then a line is also added/deleted in another richtextbox?
[Code]...
I am writing each line to a text file:
Dim objWriter As New System.IO.StreamWriter(filename)
For Each x In tofile
objWriter.WriteLine(x)
Next
objWriter.Close()
Which works perfectly the only problem is is that when its finished it writes a blank line on the end of the text file which I don't want.
I am attempting to write data to a text file from a form.
My code is as follows:
x.Write(TextBox1.Text)
x.Write(TextBox2.Text)
x.Write(TextBox3.Text)
x.Write(Textbox4.Text)
x.WriteLine()
x.Close()
I have x.writeline() which writes a new line to the text file. However when I add all four textbox values they appear as follows:
Textbox1Textbox2Textbox3Textbox4
But I want it to look like:
Textbox1 Textbox2 Textbox3 Textbox4
I am making a vb.net app and I need to know how to overight onto a specific line in a text file. For example:[code]Now, I want to completely overight the "B" to an "A" and the line I need to write on is "2" also, my application will produce dynamic text files as well so I wont always be able to know what line exactly to overight. So my question is, how do I write to a line when I know what line it is and how do I search for a specific line and overight that.
View 3 RepliesI am trying to take a line from a text file and get the second half of the line "my.settings.useqs = true" is my example and i want to get true out of the line and then make a textbox contain the text aftter the = sign basicly.
http:[url].......
I have the same problem that Niphoet had in this thread: vb .net overwrite a specific line in a text file
I am trying to implement the code that Axarydax showed in C# that I am trying to translate to use into vb.net. My problem is that the code will make my new text file but will not write any of the lines from the other text file to it and just leaves it blank. I think my problem is with the while loop statement but I am not sure.
[Code]...
I've got my self in to a pickle here.I'm trying to do something I used to do in basic? At-least I think you can do this in Basic, you know Qbasic,What I'm trying to do is put 4-8 strings on to one line separated by a comma.Example might be:
writer.writeline (bob1, bob2, bob3, bob4) Out put might look like Test, Test2, Test3, Test4
I'm tried looking in to formatting of writeline/write, but I didn't get any where with it.
Also if this is possible- I would like to be able to read it just like :
reader.readline (Rbob1, Rbob2, Rbob3, Rbob4) If anyone cold just point me in the right direction, I'm sure I can figure it out - If not... Well I will ask another question.
i would like to use a "template" text file that would be stored in the app path in a "templates" folder the user then picks what template they want and enters the few lines of text they need to change in textbox1 and texbox2 on the main form..
Dim filename As String = "C:\Documents and Settings\TADS\Desktop\kev\tads.veh"
File.Open(filename, FileMode.Append)
File.ReadAllLines(filename)
[Code].....
but somewhere along the lines i have lost myself and i havn't set the content (the string array to write the file) im not sure how to go from here..
I am facing problem with a vb.net code, it adds a second line on the txt file why ?
PHP
Dim fs As New FileStream("pwp.txt", FileMode.Create, FileAccess.Write)
Dim s As New StreamWriter(fs)
s.WriteLine(TextBox1.Text)
s.Close()
Me.Hide()
I have searched for this, and not been able to find any examples where someone has done this. I'm trying to add a new line into the cell of a DataGridView so the text appears on 2 lines (of the same cell). Here's some code to explain what i'm doing:
Dim DS As New DataSet("aa")
Dim tbl As DataTable = DS.Tables.Add("bb")
Dim xRow2 As DataRow = tbl.NewRow()
[code].....
I have a line of data that represent a data import. When the import is done, I would like to keep that exsisiting line, and add another line for the next import. So I have a display of mulitiple lines, showing multiple Imports.So this is one I have for the first section, it loops through the data so you see the rows incrementing
TextBox1.Text = clsDatRow.iFirstVal.ToString + " ROWS:" + iCountRows.ToString + " " + Date.Now.ToString
TextBox1.Refresh()
Now, I can I keep the line of data, and add a new line so for the next import, it does the same thing. It ried vbnewline, but it just clears that line, it doesn't move down to a next line.
I've been looking through the FCL for a method that will allow me to erase a line of text from a text file and replace it with another line of text. Neither the StreamReader nor StreamWriter have a method for replacing or removing Text from a text file, as does the string object. Are there any available methods for erasing just certain lines of text from a file, and then replacing them with others?
In my code, I'd like to locate a certain line in the text file, and then at that point in the text file, use a For...Next Loop to replace each successive line of the text file with new text:
Dim user_data_file As String = "user_data.txt"
edit_input = New StreamReader(user_data_file)
Dim edit_line As String = edit_input.ReadLine
[CODE]...
However, I can't find any methods that will allow me to do this.
Basically what I'm trying to do is read a text file line by line. After each line is read, it will put each line into a separate text box. I've been trying to do this for a while and so far I haven't been able to. I tried using a for loop, but that just put all my lines in to one textbox.
View 8 Repliesa user copies multiple lines of text (say, from an email) into the clipboard. Based on my observations, when one tries to paste the text into a single-line textbox, only the first line is actually pasted in. (I am aware that the "obvious" solution would be to set the Multiline property to True, but there are reasons I am looking to avoid this and to put multi-line data into a single line.)
In the TextChanged event handler, I wrote code that parses the clipboard data to successfully convert it to a single-line, comma-delimited format.
Private Sub txtMassTrackingNo_TextChanged(ByVal sender As Object, ByVal e As System.EventArgs) _
Handles txtMassTrackingNo.TextChanged
[Code].....
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.
I have a couple of VB6 programs which work 100%, however not under W7, so I need to upgrade them to Visual studio 2008 pro which I own a copy of.The VB6 software used to open a file, read in a line of data and process it then save it in a new file, before going on to the next line input.I need to convert this process to VS2008 pro and can't get my head around it..... getting old you see.I also have a few other needs to do with file handling, but I may be able to sort them myself if I get a start with the above problem....
View 17 RepliesHow do i read through a textfile line by line checking for and removing duplicate values?
View 1 RepliesI have a picture in my picturebox. In that picture, I need to draw a straight line between two points and calculate the length of that line (probably in pixels). Is there any suggestion how to do it?
View 2 Replieswhat i need to do is open a txt file, read line by line, decode each line into an array and display. Now all works ok apart from one line.
sTextLine = objReader.ReadLine() <-- Value of string cannot be converted.
full code here
-------------
Dim objReader As New System.IO.StreamReader(sOpenFile.Text)
Dim sTextLine As New ArrayList()
Dim sText As String = ""
Dim i As Integer = 0
[code]....
I want to loop the lines of my RTB and add a vbTab on each line.How do i do this?
View 1 RepliesOk, So I have a string that has its formats like this:
Line 1
Line 2
Line 3
[code].....
I have a text file with an unknown number of lines. I want to read this file line by line and send each line's text in a check list box. But how am i gonna do that when i don't know how many lines exist in text the file? [code]The code above reads only the first line. I tried to do it as in vb6 using while not eof(but here i don't know what to write cause my file isn't opened in a certain channel).
View 4 RepliesI have to create a new program that reads to Text files. These text files are in the form of a report (with column headings). The purpose is to compare each record line by line to see if their have been any changes made. The record is based on an Account#. Over time these files will be considerably large. What is the best way to do compare records from each file. I'm thinking loading each file into an array and processing them that way.
View 7 RepliesBasically, I'm creating an application which takes a list of words in .txt format, such like this:
Abc
Def
Ghi
Jkl
mno
What I want to be able to do is modify the words, one by one, so that I end with
Abc1
Def1
Ghi1
Jkl1
mno1
or whatever the user wants.
I created this app in C++ to get the logic, since I am more confident with that
I must use streamreader to read text file line by line into array.
Here's what I've got.
Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
Dim numbers() As Double = New StreamReader(txtfile.Text)
Dim numbersarray() As Double
[Code].....