I have lines in my text file like this: x y x Y x y x y x y x y x y x y x y x y x y x y x y x y x y x y x y x y x y x y
Lets say I have 20 lines like this. I want to change this lines according to user input. So user will input how many lines they want to change in terms of row and column. In my program Row=TextBox5.Text column=TextBox6.text User must enter initial value for x and y. Let say the initial value is x=1 y=1. Row=2 column=5..
Now my lines should look like this. 1 1 2 1 3 1 4 1 5 1 1 2 2 2 3 2 4 2 5 2 x y x y x y x y x y x y x y x y x y x y
Since I enter row=2 only two set of lines is change other lines remain unchange. But in my coding all the lines is changing like this: 1 1 2 1 3 1 4 1 5 1 1 2 2 2 3 2 4 2 5 2 1 3 2 3 3 3 4 3 5 3 1 4 2 4 3 4 4 4 5 5 which is wrong.
This is my code Dim lines() As String = IO.File.ReadAllLines("C:\wirematches.txt") Dim xValue As Decimal = Val(TextBox1.Text) Dim yValue As Decimal = Val(TextBox2.Text) Dim altValue As Decimal = 2.54 Dim lineTracker As Integer = 0 [Code] ..... This code working fine for changes the column. But i dont know where i should write the code for row.
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.
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.
i have 5 textboxes in a form. I have a streamwriter that writes all of their text to on text file like this:
Code: Dim xfile As String = Application.StartupPath & "/Set.txt" If File.Exists(xfile) = True Then Dim writex As StreamWriter = New StreamWriter(xfile)
[code]....
I was wondering how to get the text under the each number and place it in the corresponding textbox.
I a very large text document, I need to read some lines and at the end of each line, insert a text from the header of each page to he preceding lines.I have the following code the reads the file and displays it on a list box.Public Class Dialogs..[code]
I know that Deleting a specific line in a sequential text file is impossible but instead copy the needed lines and not copying the unneeded ones to an output file .. killing the old one and renaming the new one with the same.. I can't make this step...
Code: "Josek Sam","68 West Land Street","149 Union of States","4524563","45635463","JOSKSAM1",#2009-03-02#,"MILANCGLZ2008" "Josef Malm","142 Unions Street","64 Hamersters Street","452504","42542054","JOSFMALM2",#2009-03-06#,"MILANCGLZ2008" "Dave Green","131 Oxford Street","96 BlueBane Route","452542452","43254345","DAVGRN3",#2009-03-07#,"MILANCGLZ2008"
I made a form that when you put your CustomerID in Text3 Box.. it access the records and make some calculations. now.. The customer will return the car.. Then his data should be deleted.. I want to know how to make that when I enter the CustomerID and press on the Command button .. It copies the other lines to a new output folder and doesn't copy these ... So it appears to be deleted using this way..
Below is what I've been using. While it does work, my program locks up when trying to count a rather large file, say 10,000 or more lines. Smaller files run in no time. Is there a better or should I say faster way to count the lines in a text file?
I have the following code that displays the last line of my text file: VB Private Sub btnCurrent_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCurrent.Click Dim path As String = "C:Documents and SettingsTwiLiteDesktopWindows Programming - Laura Malave/MadEaters SolutionMadEatersSurvey.txt" Dim readText() As String = File.ReadAllLines(path) Dim s As String For Each s In readText lblResults.Text = s Next End Sub How I can display the last 12 lines of code instead of just the last line.
I want to arrange this lines according to the number in [Txxxx] from small to big then write all the line which not contain[Txxx] at the below of sorted lines. How to do this? is that possible?
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
I have this code now doing and that is creating my chart from data off a text file. The final task I need to be able to do, to complete my program is have a way to select how many days of data to populate my chats with via a Text Box input. I am thinking I will need to read the complete text file first to count how many lines are in it, then what ever is put in the text box it will take that many lines of data from the text file and populate the chart. For this to work correctly it would have to read the lines of the file back wards.(last line of file would be the first line..) e.g. textbox1.text = "7" then the chart would show only the last 7 lines of my data.
I was looking up examples of Counting the lines in the file, I think I am close here... Dim fso As New FileSystemObject Dim txt As TextStream Set txt = fso.OpenTextFile(ReadChart, ForReading) txt.ReadAll Textbox2.text & txt.Line & " line(s)." [Code] .....
I want to make a program that reads the line of a file, and puts it into a text box, then reads the second line in that file, putting it in another text box... Say i only have a file with two lines, how can i do this?I have written a code, but it only works for the first line. Is there a preset function in Visual Basic that will allow me to read a certain line?
Imports System.IO.StreamReader Dim AllText As String = vbNull, Lineoftext As String = vbNull Dim Open_File As New OpenFileDialog ' Dim Open_File as a Open File Dialog
I am trying to read a specific line from a text file and for some reason when I set my variable loopCounter = 1 To 5 it jumps all the way down to the word "Marty" in my text file but if I just change loopCounter = 0 To 5 it jumps to where it should be which is the letter "M" right after "25". I'm trying to get it to read "25". as this is an assignment for a VB class I'm taking. My text file is at the bottom.
Do While readFile.Peek > -1 For loopCounter = 1 To 5 readFile.ReadLine()
I want to remove all the line which contain [Txxxxx..] and place it in another file. i want to be do like cut and past. Is that possible. Can we remove lines in text files?
I am in the process of developing a VB.net helper application that will combine two text files into one, remove the extra blank lines, do some calculations and spit out a new and improved text file.
My question is: at the beginning of each file is a header row that starts with a "01". How does one go about removing all of the other "01" rows but leave the first header line?
So far, I have succeeded at removing all of the "01" lines, which isn't what I want but hey, I got it to work
I want to arrange this lines according to the number in [Txxxx] from small to big then write all the line which not contain[Txxx] at the below of sorted lines?
I am reading a textfile and extracting information from each line. For example string1 and string2. I am then writing these string to a datatable. However, sometimes there will be repeats in string1 and string2. If there are repeated lines I would like to be able to delete the repeating line and add a counter to find the total number of repeating lines. so if a string repeates 3 times I would like there to be a column with a 3 displayed next to the line in my datatable.
I have a windows form with a textbox and a button, what I am trying to do is enter a number in the textbox and when clicked on the button to cut and paste the data in to a new text file (from number 0 to the number I entered).ie, textfile 1 has 100 lines of data, I enter 25 and press OK I would like to take the first 25 lines and save them into a new text file and save the remaining lines in textfile 1 so it should be like textfile1 75 lines and textfile2 25 lines.The closest I've come to this is the following but this only deletes the one line..[code]
I have 2 text files that are formatted in standard XML One of them contains some lines that need to be copied to the other. What i am trying to do is search through the first file until i see the string "<Segment" then copy all lines into a rich text box up until the string "<segment/>" I Then want to look through the other file until i find the string "<Jointfree/>" then copy the contents of the rich text box to underneath the Jointfree String I Also need to search the second file until i find the string "<Markers/>" and then paste some text into the line above the markers tag.
Can anyone think how to read how many lines will be written to a txt file via streamwriter?I know i can do a count and increment on each writeline but maybe someone knows how to countlines from streamwriter?
my problem is in access to lines of a text file .I can write my text data line by one using below code . but i couldnt write to a specific line(like line 5) or else read a specific line . and also clear one line and rewrite new string.I searched many . but I couldntt get result related to this problem.
Dim objReader As New System.IO.StreamReader(C:\test.txt,true) Dim objWriter As New System.IO.StreamWriter(C:\test.txt, True) objWriter.WriteLine(my text)
