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?
View 1 RepliesI 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].....
I want to write a line into a text/.cfg filethe line is = name "ishtiak"i need a sapce between name & "ishtiak"the text "ishtiak" is loading from a textbox called textbox1....i dont want in the text box my name like this "ishtiak" it will be withot "" like this ishtiakbut in the text file it will add "" before & after my nameso the question is1.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"Here is My Project Screen & Project Code
Code:
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
[code].....
I am writing a Marketing email program so we can email news letters and the lke to customer listed in our database.One part of the application is a email templates page. On this there is a tabpage. Tab1 has a textbox and teb2 has a browser window.The user pastes/write HTML code in to the text box and it displays the formatted email/html in the browsers window.
The users just want to edit the text from time to time and within VS.NET and TEXPAD the html code is colour coded depending on the html tags.I guess this can not be done in my textbox1 but can it be done in a rictextbox and text_change event?
just another little problem here! Trying to write a quiz for a college portfolio and having trouble with writing to a .txt textfile. On one form(form4.vb), I have a listbox that picks up the information held within a notepad textfile called "usernames" which contains names of quiz users. When written in manually to this textfile, my listbox picks it up fine, however, on a different form(form3.vb), I have a textbox where a user inputs their name, this is supposed to go to the "usernames.txt" textfile to be picked up by the listbox on the other form but instead, it does not write anything at all and if there is already text on this textfile, it wipes it all out.I also have to use the application.startup path instead of the usual C:my documentents etc so i would have to begin with something like this: (Note: code is a little mixed up due to messing around with different variations but this is just a example)
[Code]...
i want to rewrite a text file with information already added to it but with my current code it just adds it to the end of the file is there a way to rewrite the entire file with new information.
Private Sub writebtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles writebtn.Click
Dim bookfile As StreamWriter
If OpenFileDialog1.ShowDialog() = Windows.Forms.DialogResult.OK Then
bookfile = File.AppendText(OpenFileDialog1.FileName)
[Code]...
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] .....
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].....
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())
I was trying to edit to get the reults output to a text file. I needed to do this for a few hundred IP addresses, and found kleinma's code. It works great as is, but since the number of IP addresses to ping is so large, I lose some of the info from the console session. I tried to make changes to write the information into a text file, but it doesn't output the results. I am relatively new to VB.NET, so I was wondering if you could please point out the flaw(s) in the edited code. I was trying to use the My.Computer.FileSystem.WriteAllText(File, lineContent, True) method to do this. This does export the IP address list just fine, but the results of the async ping to not get output.
'KLEINMA
'WWW.VBFORUMS.COM
'THE PING CLASS IS IN THIS NAMESPACE
Imports System.Net.NetworkInformation
[code]....
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).
View 3 RepliesI 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]...
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)
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"
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...
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]....
I have 2 file like this[code]...
But it not checking for non matching value and it writing everything from file 1 but i just want the line which is not matching with file 2 .
This time i have a RTB (look.text) that contains no more than 12 lines (it updates according to a listbox but it will never exceed 12 lines of text). The lines contain numbers like this:2345,0,0,1,36,... and the last line will always be a number like: + or -123456789I also have 12 textboxes (a0.text to a11.text). How do i write each line from the RTB in a textbox?-i can't show you my code because it looks stupid and no matter what i tried i always ended up getting the same error "Index was outside the bounds of the array"-
View 4 RepliesI'm writing a program where there are text boxes and the user can enter info and append them to a text file as well as read from the text file and view the various entries in it. The problems I'm running into are that I have a button that opens an open file dialog box allowing you to select the file, and I want to get it to open the first entry of that file in the correct text boxes. the code so far looks like this
code:
I used to have this bit of code in there but there was a conflict with the .txt file being used more than once at the same time while it was in there.
code:
Im also having trouble writing to the file and I'm not sure why. I have an "Append" button that has this code in it
code:
and it comes up with the issue "object reference not set to to an object instance".
I want to create a little program with textboxes in it, that writes the contents of these textboxes to a file. It also needs to write some predefined lines to the files, even on the same line as where the contents of the textbox is.
Heres an example:
The file should look like this when you open it in notepad:
^1::
Send t Text from TextBox {Enter}
First I think I would need to do this:
Dim ioFile As New StreamWriter("scripting.ahk")
ioFile.WriteLine("^1::")
If I do the above it works.. But how can I write another line where the "Send t" and "{Enter}" gets written automaticly before and after the contents from the Textbox?
I'm trying to create a program that stores a users stats for their character (for something like an RPG). I know how to write more than one line in a text file, but I want to learn how to read and write text on specific lines of my file. I know that you can just read each new line individually in order using a StreamReader, such as
username.text = readLine.ReadLine()
userage.text = readline.ReadLine()
[Code]....
This is good for just displaying the stats and changing them from a constant interface, but I'm afraid that eventually I'll need to read/write specific lines, like reading the fourth line which might specify magic level, or writing a new money amount.
so I want to make a button in one of my programs that writes text to a file. I know how to do that part. I use:
[Code]...
And just a FYI, I've spent about an hour looking this up... and I just can't seem to get it to work the way I wan't to. My application is simple, I have a "batch file editor". It has a richtextbox, a couple buttons for Open/Save/Test which are working fine.All I'm wanting to do is...
[Code]...
I am using the following code to write lines to a file. I seem to get Zero's after my text.Any suggestions to get the trailing zeros out of my text file? [code]
View 2 RepliesI'm making a personal program (So it doesn't have to look nice or be super sleek) that is basically an alarm clock. I set the time and date, it writes it to a text document then it reads it from the text document back into another textbox that is hidden and compares it to label1.text which is my system time and date.the problem is, I have it so that I can add multiple dates in one document so when I enter one it'll do as so [code]how can I make the program read 1 line, wait for it to match the label, (I already make it display a message box) and then after that is all done, go to the next line and wait for it to match. etc etc.
View 2 RepliesOk i am making a game (based on windows95)....i have it going good so far.I have it so you can open notepad (this is in a panel and its not the real system notepad)You can click save document and it saves the text it in a hidden textbox with a random filename (defined by user) and it saves it in a listveiw (windows explorer type thing).The idea is i want it to be so that if you double click the listveiw item it will open the textfile (text stored in a hidden textbox) Heres my code which is attempting to do this but i just can't think how to link them.
Private Sub btnsaveassave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnsaveassave.Click
Dim savedfile As New TextBox
mycomputerfiles.Items.Add(txtfilename.Text & ".txt")[code].....
I have a combobox (combobox1) with a list of countries, Canada, USA, UK as an example. For each country I have a textfile of cities. I choose a country, which populates combobox2 .i.e. I select Canada from combobox1. Combobox2 shows cities for Canada. I also have a button 'Edit Cities' What I want to accomplish is the following:Open some type of text editor (like notepad) and allow the user to either delete or add items to the list of cities then re-save the file back to the resources folder of my program. I have been successful in reading the textfile to a messagebox but of course can't do anything with it.
Here is a code snipet I have so far:
Private Sub btnEdit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEdit.Click
If combobox1.SelectedIndex = 0 Then
Dim fileReader As String
[code].....
I am trying to encrypt text to a textfile(.txt) and then decrypt it in a diff. program.The encrypting part works fine.I have tried these functions in a textbox and they work perfectly, I get InvalidCastException when trying to decrypt from the .txt file.
[Code]...
I'm attempting to create a program where the login and password will be verified on an SQL database of user information. I keep getting the error "SQL Execution was unhandled" I marked the code that was causing the error in red. I'm using Visual Studio 8.
Public Class Form1
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
[Code].....
I have a tabcontrol with a number of tab pages each of which contains a DataGridView control. I populate each DataGirdView form a local SQL Server. The method which does this works fine. The problem I'm having is I want to use the same method to populate each DataGridView control. I created a private member variable called mDataGridView as a DataGridView and use the TabControl SelectedTab property to determine which tab page the user has selected. I then try the following
[code]...
I then use mDataGridView in my method which retrieves data from the SQL database. Although the compiler dosn't gag at this it doesn't work. Am I right in thinking that mDataGridView references dgvQuoteTemplate?