Modify Column In CSV File?

Nov 3, 2011

I have a CSV file with many rows in which I need to update/replace column four's value using VB.NET. There are no headers on the columns so the loop can start on row one.

infile.csv
"value1","value2","value3","value4"

After much googling, there are lots of examples on how to read and write CSV files, but none quite what is needed. I know there are multiple ways to accomplish this task, but a requirement is that it's done with VB.NET.tFinal code ported from Marco's C# answerPrivate Sub CSVmod(ByVal strFileName As String, ByVal newFileName As String)

Dim strLines As String() = File.ReadAllLines(strFileName)
Dim strList As New List(Of String)
Dim strReplace As String = "test"

[code]....

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Modify The Third Column Of An Existing Excel File?

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I want to modify the third column of an existing excel file. The problem with below code is a new file is prduced with the new values in Column C and erases all other values in the orginal file. I want to update the orginal file with the new values.

Public oExcel As Excel.Application
Public oBook As Excel.Workbook
Public oSheet As Excel.Worksheet

[Code]....

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I have two text files, the first text file has two columns separated by a space (" ") and the second text file only has one column.

The column 1 in text file 1 and text file 2 match albeit in different order, what I'm trying to achieve is for every field in column 1 text file 2 I want to search for column 1 in text file 1 and display the matching column 2 field in column 2 text file 2.

Dim*OpenTextFile*As*String*= IO.Path.Combine("C:Test1.txt")
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[code]....

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Here is the code:

Imports System.IO
Imports System.Diagnostics

Public Class Form1

[CODE].............................

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memory eror

[Code]...

I can hardly think about streams til I can open a file, but when it is functional to the access to frames I'll submit a final copy for othersto use

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Dim file As System.IO.File
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[code].....

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[Code] .....

Now the modify button does what it is intended to do as far as load the "title" and the "text" elements into the text boxes. However I want to load the other attributes into the text box. I.E. date, timeStart, timeFinish etc. Also, the just of this is to be able to modify an xml file without going into the xml file using a text editor.

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Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
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[Code].....

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[Code]...

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I have text files with X Y Z data. There are three columns, one each for X, Y and Z and the files are tab delimited.The value of X is constant over a (repeating) range of Y. Z is the dependent variable.

For example:

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[code]....

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[code]....

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1. I have a button, and registry entries, each tell me what version and where it is located.
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2. After it has finished modifying the File it saves it and then Launches
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Dear Friends: I have some files in 1 folder directory that show "XML Configuration File" under type. But none of these files show the extension .config. The directory filesare like C0150,C0150_new,C0200,C0200_new etc. I need to change only 1 attribute of each of these files. I need to write a VS.Net project to do this. I have to send the .exe file(from bin directory of this VS.Net project) to my client and they will just double click the .exe file and it will change that attribute in all the .config files.

The C0150 file looks like this:
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<configuration>

[code]....

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