Create A Textfile And Write Some Lines Into The Textfile?
Oct 18, 2010
I am trying to create a textfile and write some lines into the textfile. However, the code that i am using can only write when the textfile is already created in the directory.
For this case, can i actually allow my script to search if a textfile is being created, if not create a textfile ???
Dim pathdir As String = "C:workingdir est.txt"
If System.IO.File.Exists(pathdir) = True Then
Dim objWriter As New StreamWriter(pathdir)
[code].....
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Apr 26, 2009
I have a tab delimited text file as so :
name loan period loan amount
John 5 years 6000
Sarah 5 years 6000
Jane 1 month 100
I'm looking to copy the lines where "loan period" = "5 years" to where "loan period" = "1 month", in order to show the comparison. The new lines would be appended at the end of the resulting file. The ultimate end result I hope to achieve is this :
name loan period loan amount
John 5 years 6000
Sarah 5 years 6000
Jane 1 month 100
John 1 month 100
Sarah 1 month 100
I've been toying about this with Visual Basic .Net, and so far, this is what I've come up with
Dim strData As String
Dim i As Short
Dim strLine() As String
lngSize = 0
FileOpen(1, txtloanlistinput.Text, OpenMode.Input)
[Code] .....
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Feb 27, 2011
I have a txt document here that have certain word on it per line. How can I show it in different labels. I have 25 labels and have label name as followsword1,word2,word3,word4,word5 and so on up to word25. I want the word 1 label will show the first line of the text file and the second word2(label name) will show the second line of the textfile and so on up to the 25th line . Can it be done using loop?I tried but I dont know exactly how readline process works to identify certain lines you want to read and also I tried using the "i" variable to auto generate the name of my label but it did not work.
Dim timepath As String = "C:ACCOUNTSAccount" + user1 + " ime.text"
Dim times As String
Dim timeread As New System.IO.StreamReader(timepath)
[code].....
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Jun 19, 2012
I have two text files and each text file has various columns (each column is separated by a tab " "), now some of the fields in column1 text file2 match the fields in column1 text file1. What I'm trying to achieve is to remove every row in text file 1 where the field in column1 matches the field in column 1 textfile 2 - is this possible?I have used some basic coding in the past to remove certain lines, but nothing as complex as this.
Dim linesList As New List(Of String)(File.ReadAllLines("Path"))
linesList.RemoveAt(1)
File.WriteAllLines("Path", linesList.ToArray())
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Jun 9, 2011
I have a textfile I need to open and I need to put each line into the array. What is the simplest way to add the elements/each line's data into the array while increasing the array as it reads each line? This is blowing my mind right now..I thought about using a counter and then redim-ing the array (while preserving of course).
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Dec 5, 2009
I want to create a set amount of threads, and have those threads open the same file, and then each thread will go read a different line all the way down to the end of the file. Also I do not want to use thread pool, so I have to create the threads. I have the code to create threads, but I need help on the file part:
[Code]...
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Jun 21, 2012
I use the following coding to replace a word in my textfile, would it be possible to add any coding that will remove all blank lines from the same text file?
Dim EditMyFile As String = IO.Path.Combine("D:Test.txt")
Dim inputFile = Regex.Replace(IO.File.ReadAllText(EditMyFile), "test", "test2")
IO.File.WriteAllText(EditMyFile, inputFile)
I have tried the following but it doesnt work.
Dim EditMyFile As String = IO.Path.Combine("D:Test.txt")
Dim inputFile = Regex.Replace(IO.File.ReadAllText(EditMyFile), "test", "test2")
IO.File.WriteAllText(EditMyFile, inputFile)
Dim sText As String = File.ReadAllText("D:Test.txt")
Dim sNewLines() As String = sText.Split(New Char() {ControlChars.Lf}, StringSplitOptions.RemoveEmptyEntries)
File.WriteAllLines("D:Test.txt", sNewLines)
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Jul 9, 2010
I'm writing a program that retrieves certain lines from a textfile. This textfile is rather large, so is it possible to have a progressbar that shows the progress when it retrieves?
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Dec 16, 2011
If I do the following
FileOpen(f, Application.StartupPath & "data.txt", OpenMode.Input)
While Not EOF(f)
Input(f, t) 'read data line how do I get to keep the leading whitespace
ie in the file there is
"one"
"two"
" three"
I want to keep the space at the beginning ie t=" three" but t="three"
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May 22, 2009
Try
Dim s As New IO.StreamReader("C: est.txt")
For i As Integer = 1 To 4
s.ReadLine()
[code]....
this only reads one line and proceeds with command.. how can i fix this to be able to read multiple lines, like read line 7, do command, read line 9, do command, etc..so much work to do and so many choices to choose from...
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Oct 17, 2011
I'm currently use visual basic 2008. The problem is I have try this code but,it produce no output. There is no problem with the code I guess. Here is my code
Dim i As Integer = 0
Dim line As String
'Dim reader As StreamReader = New StreamReader("C:\drill.txt")
[Code]....
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May 5, 2009
Imports System.ComponentModel
Imports System.Drawing
Imports System.Windows.Forms
Imports System.IO
[code]....
I want read the content of the text file and write to vb.net application. My text file name is wires.txt. The above code only read and the file appear on the application. I dont want the file to be visible to the end user.
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Aug 28, 2011
It may seem noobish but, I've been try forever! I've been postponing a database project for like 3 years and I finally come to some solutions except for when it deletes an Item from the list. On form load, the listbox generates data from a text file (we'll call text1) which has data in it. For every line of data in that text file (text1), there is a text file (text2) in a 2nd folder.
For example, there may be, in text1, a line named "Hi". In the 2nd folder there is a text file named "hi.txt" Another line (say the next line under 'Hi') is written as "Hello world", there will be a file in the second folder called hello world.txt"
May seem confusing but it works well. My problem is making that 1st text file that has ALL of the data that loads into the listbox, be rewritten over with the new data in the listbox OR remove a certain line of from the text file.
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Aug 15, 2010
I have a multiline string that is called password (as you can see in the code below) that i want to save to a text file:
Dim
password As
String
[code].....
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Mar 8, 2010
Is there a way to write the content of the clipboard to a file on the PC. I'm currently using window7 and i got a tool horst.exe that seems to do something like this. But the tool always crashes on windwos7. So Any program which can be called from shell that writes the content of the clipboard to a file.
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May 4, 2010
Im trying to write all the current movies in a listbox named "ListCart" to a text file called "orders.txt"[code]...
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Nov 10, 2011
I need to write data that is contained in a datagridview to a text file row by row. I can't get this to work.
[Code]...
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Sep 26, 2010
My office BA requested me to develop Window application to retrieve all the files from the SalesDepartment folder : F:SalesDept and write the name of the file into a TextFile and save it into this folder F:StoreFileName
I have not written this type of coding before and I need your help to show me sample coding in order for me to learn something new.
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Oct 2, 2010
I am trying to read a value of a sunbkey in the registry and write to txtfile. Problem is I only get the name of the key and not the value. Any ideas
Code:
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Mar 18, 2009
I came upon your forum while googling my problem. I respect the fact that you don't do someone else's work as I wouldn't either. But, as a beginner I have a lot of questions so hopefully no one minds.
[Code]...
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Nov 6, 2009
I have a 4 listboxes, all 4 listboxes will be populated after I clicked the cmd_button. I need to have the items on all 4 listboxes written to a text (or preferably rtf file if possible)
[Code]....
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May 7, 2011
The code below allows me to write a single line to a textfile. Id like to be able to open an entire textfile into a textbox, be able to edit said text and have it automatically write back to the same textfile.
Private myCoolFile As String = "C:UserskevinMy Documentspasswords.txt" '// your file.
Private myCoolFileLines() As String = Nothing '// String Array to read File Lines into.
Private sTemp As String = Nothing '// temp String to be used as needed.
[code]....
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Jun 13, 2011
I have a bar cash register and have buttons for the drinks and number pad. In the program I have it working and it is reading the File and storing it in a Array. the problem i have is writing back to the part of the textfile. Here is 2 of the drinks buttons, all the rest of the drinks are the same.
[Code]...
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Jan 20, 2008
I am relatively new to VB. I was initially using fileopen, writeline, and fileclose to create, write to, and close a comma delimited file. But recently I attended a training course where the instructor mentioned that these old methods will be going away and I should try and use Streamwriter instead. I was successful in converting some of my code to StreamWriter when creating a simple text file using WriteLine.
For example: myStreamWriter.WriteLine(text). But this writes an entire line of text.
I cannot see to find any information on how to create a comma-delimited file using StreamWriter. My old code was something like this: Writeline(filenumber, field1, field2, field3, field4). How to do the same thing with StreamWriter?
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Mar 26, 2011
I am trying to read two text files and write in differents tabs.
Code:
Dim xl As Object
xl = CreateObject("Excel.Application")
xl.Visible = False
Dim i As Integer
[CODE]...
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Jul 13, 2010
I have to create a textbox which will list down one column of datas from textfile which is separate by delimiters.But as I have to filter alt.Row from the text file, what can i do?
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Jul 14, 2009
i am using to insert data into a table like the following
[Code]....
how i can insert same data into text file.
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May 14, 2012
I have a textfile which is in the following format.
[code]...
There are only 5 rows and two columns. each field is seperated by a space (" ") What I'm trying to do is display column 2 value 1 in textbox1, column 2 value 2 in textbox2, column 2 value 3 in textbox3,column 2 value 4 in textbox4 and column 2 value 5 in textbox5.
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May 11, 2009
Ok so i have a text file with 20 lines (one word each line) and a for loop that runs through those 20 lineI have a string array, a random, and an integerwhat i am having problems with is having the program read from a textfile then having a random chose a random number then assigning the integer that random number then having a textbox equal that word if you get what i mean..here is my code for that
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
Dim AIWords(19) As String
[code]....
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Jan 17, 2011
how would i go about changing this code to use a listbox and not this path to file.("C:TestText.txt")
Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code].....
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