I am a new VB programmer, currently running Visual Studio 2005. I would like my application to write data to a txt file (that can later be opened with Excel). I am able to declare a streamwriter and write data (strings and variables), but I am having some trouble in that I have multiple classes using the same file.
[Code]...
I have a trouble making this code work. When executed, it just creates a correct (with the correct name) file with the extension .txt but the the actual text inside .
Imports System.IO
Public Class Form1
Public mytext As String
[code]...
The strange thing is that while debugging, h, t string variables have the correct values, but somehow mystream.write(t) doesnt work (it doesent write anything to my h.txt text file...
Reading a .txt file in VB.net. My file path is C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt.
This is my line of Dim LoanOptionsFile As String = "C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt"
I can read the file when I run the program, but how do I write the file path so that someone else can download my program and file and read the file on their system?
I want to write a program to write in an xml file in this format:
<?xml version="1.0" encoding="utf-8" ?>
- <Orders>
<Item id="1" SKU="998123" Description="Super Widget" Quantity="100" />
[Code]....
I'm trying to write a sub that will write to a file. here is what i have:
Public Sub LogMe(ByVal MyType As String, ByVal MyMessage As String)
Dim LogStream As FileStream 'should be at a level with enough scope for your logging
[Code]....
The problem is that this will just overwrite what is already there. I would like to have it append the EHomeLog.log every time it is called.
What i am trying to do is open a save file dialog and write to a .txt firl the contents of my listview. so far:
[Code]...
i have this, but i'm not to sure how to write to the .txt file i know i need to use a for each to loop the contents of the list view
I can not fiend any write functions to a text file or to a other file in Windows Direction
I want a simple write function for a button when click button it will write some lines to a file
I'm looking for a code snippet that will add graphics (lines, circles, etc.) to an existing pdf file & write it out as a new file.
View 6 RepliesI am using Visual Studio 2008 on Windows XP SP3. User has Windows 7 Pro (32 bit). The IO code below works for me. The read code works for user, but the write code only works for new files. If the user tries to overwrite a current data file, then no data is written to disk. I have done all the usual IO checking (valid file name, etc.) and have excluded it from my same code. In my app, FileSave and FileSaveAs both call WriteDataFile(FullFileName). Any reasons why FIleSave would work on Windows XP, but not on Windows 7 Pro (32 bit)?
Code:
Public Function ReadDataFile(ByVal FullFileName As String) As Integer
' reads a Data file from disk
'
' Format is a text file, with [TAB] seperators and [CR][LF] as line terminators
[code]...
I have a text file and I want to take the data from the text file and write each line into the excel file (into the same column). How do I accomplish this? I know how to read data from a text file, but I don't know how to insert the data to a excel file..
View 5 RepliesProgram to convert binary pdf file to tiff file in VB.NET..?? We can use third party tools also..???
View 1 RepliesI have an issue where I need to load a fixed-length file. Process some of the fields, generate a few others, and finally output a new file. The difficult part is that the file is of part numbers and some of the products are superceded by other products (which can also be superceded). What I need to do is follow the superceded trail to get information I need to replace some of the fields in the row I am looking at. So how can I best handle about 200000 lines from a file and the need to move up and down within the given products? I thought about using a collection to hold the data or a dataset, but I just don't think this is the right way.[code]....
View 1 RepliesI am working on a program with multiple collections related to one another for a school project. Each collection needs to have its own defined properties and have the objects written (1 per line) to a text file.
I have all of that working.
When reading the comma-separated line from the file, I want to place one of the properties of the object in a listbox (so that all the objects' names will show up in the listbox). I think I have this part figured out...
My problem is that when you click on the name in the listbox, I would like multiple text boxes to be populated with the appropriate, corresponding properties of the particular object in the collection...is there a way for this to be done?
i have a structure of;
name
age
gender
location
then i need to read in a file into an array on the structure above, and pretend this is the file which has 3 people
george
45
m
usa
[code]....
so basically i dont get how to read in a file then put it in the array in that structure then make it into a csv file?and whats the difference between streamreader and streamwriter?
i am a beginner and trying to write a program that can convert .dwg file into .xml file format.i am familiar with visual studio 2008, vb.net and autocad 2007.my question is what do i need to do or learn to start this project?
View 2 Repliesi know how to do it but is this even possible in vb. get a textbox and a button.write a file path to something you want to dlete in the text box then press the button and the button deletes the object the file path has specified.and you
View 2 RepliesWhat my program does is load a file (password list), then progressively reads each line of text in the file whilst writing each line to a new file. After X amount of lines have been written, it should start writing the lines of text to a new document until the initial password list has been split into X amount of password lists. The problem I have is that after hours of tweaking, all I can get it to do is write either blank ocuments, or write all of the lines to only one file. I really need it to be able to split into multiple files, preferably at runtime rather than loading a whole text document into the program in a textbox or array then writing it to new files.Below is the source:
Imports System
Imports System.Windows.Forms
Imports System.IO
[code].....
I have dev.xls file with sheet name as "Electricity". In my vb.net winform application, I want to read all this data and write it into another xls file (Test.xls) with sheet name as "Electricity_Processed". Looking for a way to do this without using other dll's or Interop
View 3 RepliesI Am making a Soccer League tabel with player names.With All the Names:The first Digit is either T(for Team) or G(for Goal).
[Code]...
I simply want to do this :
1. Creating a textbox1.text
2. Creating a button.
3. Coding the button so whatever is written in textbox1.text will be saved in a .ini file.
Quote: My.Computer.FileSystem.WriteAllText("c: ext.ini", TextBox1.Text, False)
I am very new here and try to make something in VB. Ill look very much web pages but I can't find how it's done. In my form ill try to read a dat. file of a txt file from the machine it has the data from tools it contains all the tool data but first ill want to know how to find all de tool numbers. Every tool number has 8 digits P0= ******** and ill want in the second rtf.box al list then ill can make a new tool list of that . maybe later on ill can expand everything. First how can I read from richtextbox1 and find tool numbers to make a list to richtextbox2.
[Code]...
Does anyone have any ideas on how to create the code that will write the files in a specified folder as lines in a new csv file? I am stuck on this. i saw negative0's post a while back [URL].., but I cannot get the the types to work even after adding the reference. I can't seem to find those commands in VB2008.
View 6 RepliesI have a problem and hope someone have idea to rsolve it. I have a file and inside the file the format is like that :
123.567 456.789 12.345 223 223 221 223
123.555 456.788 12.344 223 223 221 222
123.456 345.678 456.234 445 445 445 445
total line is 3456789903. I want use vb console application to read the line and every 130000 line create a new output file.
i have a problem reading from a file in vb.net. I want to read from a file bit by bit so the file i write to is exactly the same, well almost because im planning on merging two files together but i can do that if i can figure out how to read and write exactly as the file was. I cant seem to get streamreader to work on non text files.
View 3 RepliesI have a file and inside the file the format is like that :
123.567 456.789 12.345 223 223 221 223
123.555 456.788 12.344 223 223 221 222
123.456 345.678 456.234 445 445 445 445
'''''''
total line is 3456789903
I want use vb console application to read the line and every 130000 line create a new output file.
I have a small project and at the moment have no idea how to write a .exe file, but I learn fast.I need to write a program to latch a bit on the parallel port LPT1 to control a relay board.
-Say on2.exe to turn on bit 2 on the LPT1 port.
-Say on4.exe to turn on bit 4 on the LPT1 port.
-Say off.exe to reset output pins on LPT1 port.
Help in this direction or code I can compile, and what software I need.Working in Windows XP SP2.
I do not know how to write data in PDF file. I want generate report in PDF Format but I do not know so How to possible help me.. I am using VS 2010.
View 5 RepliesHow would i over write a file?
View 6 RepliesSince I am working on a web application, this mystery was first posted on the ASP.Net forum. My ASP friends and I have not been able to unravel it in more than a week. Since the source of the problem is in a VB class that I wrote, perhaps you can see something that we overlooked.
The data for the web application is contained in several small CSV files. Data controls such as the GridView and DetailsView are used to display the data. A connection string binds the CSV file to a SqlDataSource for the control. I have written a class that reads the CSV files to a dictionary; the data in the dictionary is manipulated and written back to the CSV file.The class has a ReadCSV(fileName) and a Write CSV(fileName) method that transfer the data for each of the CSV files. Additional methods do the data manipulation.
The mystery is in the WriteCSV method. Before calling the WriteCSV method the SqlDataSource correctly extracts the data from the CSV file. After the WriteCSV method is executed, the SqlDataSource cannot extract the first field of the first record, but an inspection of the CSV file shows that the field is not missing. I have created two screen shots showing the before and after WriteCSV conditions. The First Screen Shot shows the Test Query from the Configure Data Source window of the SqlDataSource before the WriteCSV has been executed. The inset shows the contents of the Tees.csv file. The Second Screen Shot shows the same view, but after executing the WriteCSV method.This picture shows that the value for IDt in just the first record is missing, but is present in the Tees.csv file. Once damaged by the WriteCSV method the Tees file must be restored from a copy.
I want to write an XML file in the following format
<?xml version="1.0" encoding="utf-8" ?>
<trans>
<trans eng="string from listbox1" type="string from listbox2"/>
[Code].....
lets say i red a file as hex an have the data in textbox can iwrite it back as a file not the file contents but the file asd a file . i red it as binary and converted it to hex
Dim BinaryData() As Byte = My.Computer.FileSystem.ReadAllBytes(FileName)
For Each B As Byte In BinaryData
TextBox1.Text &= Hex(B) & " "
[code].....