Writing From A Text File?
Feb 15, 2009
This is my first post in the community. I am putting together a program that serves two functions:1. Takes input from TextBoxes and writes it to a text file.2. Takes the text from the text file and displays two specific strings of text in a MessageBox.This is the code for the button that writes the input to file.
Private Sub facSubmitButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles facSubmitButton.Click
Dim facultyRecord As String = "C:\Documents and Settings\All Users\Desktop\teeny.txt"
[code].....
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Apr 21, 2011
Write a program that requests a color as input in a text box and then determines whether or not the color is in the text file. The program should use the Boolean-valued Function procedure IsCrayola that returns the value True if the color in the text box is a Crayola color.
*I am to use a file named Colors.txt
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Jun 13, 2011
i have a text file containing following data(it is a config file for another program):
[pos]
100
[lastsave]
[code].....
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Feb 6, 2012
I am writing a typing game in VB:E 2010 for school and I am trying to write the results of these games to a .txt file.[code]
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Sep 24, 2009
When using .write method the string will be stored at the end of the text file. Is there a method that adds them on top? If not, how can I get this done without using too much memory and processor time?
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Jul 17, 2010
I have just recently been using VB 2010 after using VB5. I have noticed a lot of changes. The problem I have is that I wish to open and save text files to and from arrays in the background. I've attached what I would do in VB5. I have searched around, but all the examples I find use a Textbox instead of an array. Can anyone show me how I can do this with VB 2010?
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Jun 9, 2011
I am creating a text file using a save file dialog and copying the path to the text box which file is used to write from vb.net. when i try to write i get an error "The process cannot access the file '....fileName.txt' because it is being used by other program".
The code is below
Public Sub writeInTextFile()
Try
Dim oWrite As New StreamWriter(TxtOutputPath.Text)
[Code].....
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Mar 11, 2010
I am attempting to gather a group of file names from a directory. I am able to do this. I tested the code by having the list populate into a listbox and all desired items were added to the list.
Here is my code:
Dim di As New IO.DirectoryInfo(strPath)
Dim dir1 As IO.FileInfo() = di.GetFiles("*.txt")
Dim dFiles As IO.FileInfo
ListBox.Items.Add(dFiles)
However, a listbox is not my desired output. I am attempting to write these file names to a text file for purposes of then parsing the information to a datatable to compare with another datatable. How to get my filenames written to a textfile.
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Aug 21, 2009
I am writing an application that must generate a plain Text file with fixed sized columns.my current code is:
Dim MyFilePath As String = Path & FILE_PREFIX & FileNr & ".TXT"
IO.File.Delete(MyFilePath)
Dim FileStr As New IO.StreamWriter(MyFilePath, False, <ENCODER HERE>)
[code].....
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May 17, 2011
I want to write a line into a text /.cfg file. the line is = name "ishtiak", i need a space between name & "ishtiak". the text "ishtiak" is loading from a textbox called textbox1. i don't want in the text box my name like this "ishtiak" it will be without "" like this ishtiak but in the text file it will add "" before & after my name.
so the question is: 1.how to add space between name & "ishtiak"? like this = name "ishtiak". 2.My textbox text will be ishtiak,but it will be written like this "ishtiak" [Code]
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Jan 24, 2011
We have some information that we need to write (about 18KB) to a .txt file stored in one of our network drives. The file is re-written about once every 15 minutes but is read practically at least every second. We are currently using StreamWriter to write file.The file server is in remote location and the round trip ping varies from <1ms to 15ms.
The problem is, sometimes it takes as long as 6 seconds to write the contents to the file, which is definitely way too long even after we take consideration of the network speed. therefore, I am just wondering if there is any efficient way to write the file using VB.Net to improve the performance? Java has a very good tool named BufferedOutputStream, which unfortunately is not available in VB.Net (or I just have not found it).
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Jan 30, 2011
Application log file have been created to monitor the process and following code has been used to write the log information into text file. For the first time there is no error encountered when the application runs for hours, may be 3 hours i am getting following error "An unhandled exception of type 'System.StackOverflowException' occurred in mscorlib.dll" [code]...
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Mar 12, 2009
I want to write some stats to a text file every time a person loads a page. But every once in awhile I am getting at 'Could Not Open File, Already in use' type of error. I can not 100% replicate this error it is very erratic. My code is
Public Sub WriteStats(ByVal ad_id As Integer)
Dim ad_date As String = Now.Year & Now.Month
Dim FILENAME As String = Server.MapPath("text/BoxedAds.txt")
[Code]....
how can I lock and unlock the file so I stop getting the erratic errors?
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Apr 18, 2011
Im working on an assignment for school and i have to write my schedule to a file using input boxes, also i have to use a structured array on the assignment. Both of these i have working fine.I just have one problem, my formatting such like when i write to the file it doesnt look all nice and straight and when i read from the file its uneven also. I know its because the classnames/teachernames are different lengths but i was wondering if anyone could explain to me how to format it to make it look nicer in the text file, and when its displayed on the form in the label
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May 11, 2009
Im working on an assignment for school and i have to write my schedule to a file using input boxes, also i have to use a structured array on the assignment. Both of these i have working fine.I just have one problem, my formatting such like when i write to the file it doesnt look all nice and straight and when i read from the file its uneven also. I know its because the classnames/teachernames are different lengths but i was wondering if anyone could explain to me how to format it to make it look nicer in the text file, and when its displayed on the form in the label. ( i only use 1 label to display the schedule. )
heres what i have
Public Class MainForm
Structure Schedule
Public period As Integer
[code]....
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Nov 23, 2011
how to read and write a text file in vb.net
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Oct 19, 2009
In the following, Response.Write poduces the expected result of displaying user name and password - but nthing is written to the text file (colocated in the root directory).[code]...
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Jun 12, 2011
In the following, Response.Write poduces the expected result of displaying user name and password - but nthing is written to the text file (colocated in the root directory).
Imports System
Imports System.IO
Partial Class getCustomer
[code]....
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Mar 28, 2010
How would a person read a line of a text file by the number of the line. In other words, if I wanted to get the 3rd line of the file, how could I store that third line in a variable. While I'm at it, I might as well also ask how to do the opposite, or write text to a specific line (in this case, writing over the other information on the chosen line).
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Jan 16, 2010
For writing to a Text file and saving it somewhere like my C: drive, Should the following work?
Dim 1 As NewStreamWriter ("C: est.txt")
I want to put this code into the On btn click section so it outputs the content of my listbox into a .txt file ready for printing if needed
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Jul 21, 2009
I have five column in my datagridview. I want to write the contents of datagridview to the text file. let say i enter this values to the gid view
T C F S H
1 2 3 4 5
it should be save in text file like this T1C2F3S4H5
This is my codind so far.Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Using theWriter As New System.IO.StreamWriter("c:Drill Layer Header.txt", True) For Each row As DataGridViewRow In Me.DataGridView1.Rows
theWriter.WriteLine(String.Format("T{0}C{1}F{2}S{3}H{4}", _
row.Cells(0).Value, _
[Code]...
My problem now is everytime i save data from datagridview to text file after it save the content the, in the last line in text file it add line like this TCFSH so my text file look like this
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Nov 2, 2011
I'm trying to solve a problem I'm having with writing in a text file using 2 arraysthe first array is the normal text, line by line.g.
dim arrCode as string()
arrcode(0) = "This is the first line"
arrcode(1) = "The second line etc."
[code].....
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Aug 4, 2011
i am currently writing a program, that takes an order in one form, asks for the location on another form writes this data to textfile, named accordingly to the location. at the moment i am still finding a way to write the listbox to a textfile. when i google "Writing listbox to a textfile" most of the code below comes up.when i check the new text file, the text is not written, and instead i have "System.Windows.Forms.ListBox+SelectedObjectCollection"?
Private Sub Location_btn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Location_btn.Click
Dim neworderlocation As String = "I:\test.text"
Dim datasave As IO.StreamWriter
[code]....
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Mar 31, 2009
I have to write data to an existing text file. I know it is possible to write to an existing file. But, my problem is I don't want to append the new data at the beginning or end of the file. I need to append the new data at the specified line.
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Apr 3, 2012
I am creating a fault tracker AKA issue tracker. It is going to be very simple in functionality. As of right now I am using a text file as a database for the end user to store current issues.
The reason for me using a text file is that I do not know much about database programming and I cannot find any simple examples in the same usage. My question is, is it really going to become a problem as more issues are added to this file and it becomes larger? I.E using up more resources, application getting slower etc?
If so, could anyone point me in the right direction to creating a simple database application. Most examples I have seen require ask to download their pre-made database. Although I would like for the program to create a database if one is not there.
[Code]...
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Jun 20, 2011
I am trying to save "text" in to a text file so that it make a new text file everyday and i want the date in the text file name so it say "DailyReportlog(DateHere).txt.This is the code that i got so far i got it to write in to a text file but it dose change every day and the date dosent go in to the textfile name.[code]
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May 1, 2010
I am trying to create a program for a voters poll, where when a caller calls in, I can enter their vote for one of the four choices in the listbox and it will be automatically added to the vote count. I got that much to work, I need to save the vote to a sequential text file, when a vote is saved. I know I am close but it is just not quite working. I only need help getting the info to save to the sequential text file. I have also included a jpeg of what the form looks like.
[Code]...
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Apr 20, 2012
I am trying to write the contents of a listbox to a txt i want included inside my projects installation files (so it wont need admin privileges to change it)The code im using at the minute is
Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
'UPDATE TXT FILE AFTER CLOSING
Dim i As Integer[code].....
However it will not populate the file upon closing the program! I get an error, how would i go about populating it correctly,,,
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Jan 6, 2009
writing a text file, If LineData(1) = "ABCDE" then I need the file to look like this when the text file is opened:$mov "ABCD" D10 No other quotes or spaces are allowed. Now I have opening and closing quotes on the entire line no quotes on the ABCD section
DRegister = 10
FileName = "C:PLC Print2.txt"
FileOpen(ff, FileName, OpenMode.Output)
For K = 1 To I
[code]....
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Apr 12, 2011
I am working on a program using VB.Net 2010 which will enable me to setup groups of files & folders for back up with syncing capabilities etc. I have a concept program which is based on some sample code I found out in one of the VB.Net forums. I have modified it from a command line based program to a form based program. At the moment I consider this code to be a "concept" program which once I have the various copy/sync routines developed and debugged will be integrated in to another program I wrote for
creating "Back Up" groups to automate the process. There are some 3rd party programs that do similar things that I want to do such as Microsofts Sync Toy, but none of them offer the grouping and exclusions options that I am going to program in to this backup/sync program.
So here is my problem, I have the included code taking two folders, a source and a destination, and copying everything from the source to the destination. It will skip over any unchanged files/folders and will delete anything found in the destination folder that is not found in the source folder and it will update all files in the destination folder that have a newer version in the source folder. In other words it will mirror image the source to the destination but will be smart enough not to copy unchanged items from the source to the destination thereby saving a lot of time. The sync part of the program is working fine, the displaying of the progress and results is not.
[Code]...
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