Should Change File From Binary To Text Or Another Type

Apr 20, 2011

i am currently doing a project for my course. My project is creating a system for a mechanical workshop, this includes customer information, car information, expenditure ect. I am not allowed to use access to store the information as this will decrease my overall mark on difficulty hence i am going to use files to store the information. I am using VB 2005. I have tried with binary files, this was good at first as it stored data in a record but then when i tried to create a algorithm to search the data it failed.

1) Should i change my file from binary to text or another type?

2) Anyone have any ideas to search within a binary file? If you do can i get some code please.

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Change Text In A Binary File?

Jun 4, 2011

How do I change bytes [text stored in those bytes] in a binary file?

I have a little function that read bytes 335-343 [For Keyer] and bytes 344-352 [for verifier] and displays it. These bytes store who the keyerID and VerifierID of a data entry file are. From time to time the Verifier Resumes the file [to insert new records], and his/her name gets stored in the KeyerID bytes. So if the original keyer had lots of errors, the new verifier now becomes the owner of this file and the errors are attributed to him/her [not fair]. He/She gets penalized when there are lots of errors.

My question to you is, how do I change the content of those bytes and save it to the file, without damaging any part of the file? I want to save 'H345' in those bytes, [H345 is an example of a Keyer/Verifier ID]

note - as of now I am using 010 Editor [binary editor]to manually change those bytes. When I use this editor, I can see the text portions for those bytes.[code]...

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Read A Binary File By Formatting A Record Type?

Apr 26, 2010

I used to read a binary file by formatting a record type and then using the Get command to get the data. What is the equivalent in VB.net?

Code:
'In Module.bas
Public Type recordtype
dist As Single

[Code].....

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File I/O And Registry :: Check If A Certain File Is In Text Or Binary Format?

Mar 13, 2010

how I could check if a certain file is in text or binary format?I'm using VB.Net 2008 Express.

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Write Text To A File As A Binary?

Jul 26, 2009

I need to write an hexadecimal value to a text file but as a binary, how do i do that

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Reading Binary File As Text And Manipulating It

Sep 29, 2010

I am doing some exercises on encrypting data. One of them are binary files. I am currently using triple DES to encrypt and decrypt the files both in VB.NET and C#... Now the thing is, once it is decrypted in VB.NET and saved, I can execute it again... But for some reason, my C# file is bigger! 20,4K where VB.NET one is 19,0. The C# file also is rendered unexecutable...Upon a closer look. The files appear almost exactly the same, but C# seems to add in a few extra bytes here and there in (seemingly) random places... I am currently using:
File.ReadAllText(String filepath, Encoding encoding); with UTF-8 encoding.

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Reading A Text From A Binary File, Changing And Saving?

May 4, 2009

I'm new to VB and trying to figure out how I can replace a bit of descriptive text in a binary file. I presume its binary as I cant open it with anything but a hex editor. I've changed the text (file description) in the hex editor and saved it fine but I'm unsure how I go about saving just the section of information I need. I can work out the saving bit later.In the attached file you'll see the highlighted bit I want to edit. I need to replace the whole line or the file corrupt but I can fill it up with null characters and the numbers are just

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VS 2008 - Read The Unicode Text From A Binary File

Jun 3, 2011

I ran across my first unicode data, and I am not sure what to do with it. I read the unicode text from a binary file using the ReadBytes method, because ReadChars threw an exception when it tried it. Well, long story short, I have found a way to work with the data, I can convert it using a small Function I wrote, which goes something like this: [Code] And this works wonderfully. It just throws away anything not in the ASCII range, including the BOM at the start of the unicode data.

But I would guess that this method is not very universal and probably not the best way. Are there any VB functions available to do this sort of thing? I was able to find something called Text.Encoding, but there didn't seem to be a reverse of that not that I found anyhow. Any ideas?

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Rename File And Change Type

Oct 10, 2009

This is something that I'm curious about. Is it possible using OpenFileDialog to have user select, instead of Access Database File,a file with different name and type but keeping Access Database connection string intact ? I have no idea how you would go about attempting this-----I thought it might be better if the user opened a generic file instead of realizing that they were opening a Database File.Can you create Custom file Type to handle situation like this or do declare some type of Variable

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Change The Numbers On The Text Box, The Data In File Will Change As Well?

Mar 20, 2010

So, I've got a text boxes which loads up a content from a XML file, usually a numbers I want a button, so when I will change the numbers on the text box, the data in file will change as well, in other words a save button That's how the data is being taken from a file

[code]...

Those EditPaths, Playa2 etc are making up a path to a file

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Type Literal Binary In .NET?

Sep 13, 2009

How do you type binary literals in VB.NET?

&HFF // literal Hex -- OK
&b11111111 // literal Binary -- how do I do this?

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Convert From Binary To Image Type?

Dec 21, 2009

convert binary image to jpg or png one.i've saved some types of images in my database but now i want to display them but i can't do it

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Save A Custom Type As Binary Data In NET?

Sep 26, 2011

I'm creating something that has save files. For the most part, it's just saving objects with 4 values.[code]...

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How Will Change The Label's Text To The Random String Of The Text File On Startup Of The Application

Apr 23, 2011

I have a label that reads a random line from a text file and that string becomes the text for the label.

Now the problem; the label will only work if it is clicked because the event handler is click.What I need is this to work automatically at startup. In other words, it should change the label's text to the random string of the text file on startup of the application.

Here is my code.[code..]

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Create An Application That Allows User To Type In A 32 Bit Number Using Binary System

Jul 13, 2011

Can anyone help me to break down the instructions for this assignment.Create an application that allows the user to type in a 32 bit number using the binary system, and convert that number into the decimal numbering system.For example, the user types 000000000000 0010 (where there are 30 leading 0's, 1 then 0 from left to right), and the output would be 2.The user will type a string that is 32 characters in length.A For loop 'reads' each character using the x.substring(i,1) where i is the current character we are reading and 1 means one character only,and x is the entry the user typed (use a Textbox to get the entry but Inputbox is also ok).When you start at the first character (from the right) then that value is to be * 2 ^ 0 then the second character is to be * 2 ^ 1, then the third character is * 2 ^ 2, hence:( x.substring(i,1) converted to Integer ) * 2 ^ j represents the decimal value of the current number (0 or 1) we are reading.A variable is needed to accumulate all those values.After the loop is done, display the accumulated value.To test this code on a simple version, enter a 4 digit binary number, where 0010 is decimal 2, 0110 is decimal 6, 0111 is 7, and 1000 is 8.

My understanding is the user must enter 32 digits into a textbox. The textbox should place limitations that only allow the digits "0" and "1". This error could be displayed to the user with a messagebox that then asks to reset the value orginally inputted into the textbox. My understanding is I should continue creating the formula of the position of each character where the third character is *2^2, fourth is *2^3, fifth is *2^4 and so on? I don't understand the formula and how it works.

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File I/O And Registry :: [VB2008] Change Specific Line In A Text File

Jan 13, 2009

I need to be able to change a path inside a document ( a config file to a program) to the current directory of the application im creating in VB so the text file looks something like

Quote:

something=234
blabla=io
ServerRoot=C:Server

i need to change c:server

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Read Binary File And In This File Found The String And Replace It With Other One And Save The File Afterwords?

Jan 11, 2011

i need to read binary file and in this file found the string and replace it with other one and save the file afterwords. I found many example to read binary, but to find and replace is for me mistery.

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Change The Text File Value?

Jun 23, 2009

My text file look like this:

4.5 28 Red (T1 ) [1 12.86 53.8] X Y 198452 -1309 | 11.0 28 Red (2 13.10 04.0) [T1 ] 130611 2948 229111 28275
1.5 28 Blue (T2 ) [1 07.06 59.1] X Y 190456 39339 | 6.5 28 Blue (2

[code].....

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Change The Value Of Text File?

Jun 17, 2009

I have a values like this:

129111 33775
123111 26775
118611 30275
114111 30275

[Code]...

every X and Y value must be plus with 2.54. if user enter column=5 then the first 5 velues for X must be change Y remain unchange and for the next 5 values the first Y value will be change..

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Change Value In Text File?

Jun 30, 2009

I have a combination of lines like this in my text file.

X200876Y-140576
X220177Y124676
X-178377Y-124076

[Code]....

How can i make it if X and Y contain "-" then it should insert "." after count 4 if not it should enter "." after count 3?

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File I/O And Registry :: Binary File Primer - Read The Nth Record Without Reading The Whole File?

May 4, 2009

I need to write data to a file, preferably in binary format, but I am unaccustomed with the concept. Where's the easiest place to get the basics? I could come here with a specific need, but I'm at the point right now where I am more willing to work within the confines of keeping it simple.

Here's what I know:
1. how to open a new file
2. how to specify the record length
3. how to close the file

Some specific questions:

Does the record length have to be constant throughout the file?

Can I read the nth record without reading the whole file?

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Change Just One Line In A Text File?

Apr 11, 2012

I have a text file with the format:

(title,price,id#)

CD1,11.00,111111
CD2,12.00,222222
CD3,13.00,333333

[Code]....

What is the best way to go change the price of the appropriate CD if I'm given the id# and new price?

I'm sure it has something do to with getting the line and splitting it, but I'm not sure how I edit just one line and not mess up the whole file.

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Change The Value Of Text File Column?

Aug 14, 2009

I have a line of tetx. I must change the value of X an Y column according to the initial value which is input by user. I have a text box for user to enter row and column and also text box for the user to enter intial value of X and Y

It should work like that. If have 10 lines then user wil input row =2 and column=5. Row always will be 2. Initial value for X=100 Y=100

the first line should be 100 100 whic is initial value.
my output will be like this

X Y
100 100
102 100
104 100

[Code]....

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How To Change Value Of Text File Column

Aug 13, 2009

I have a text box for user to enter row and column and also text box for the user to enter initial value of X and Y. It should work like that. If have 10 lines then user will input row =2 and column=5. Row always will be 2. Initial value for X=100 Y=100. The first line should be 100 100 which is initial value.

My output will be like this
X Y
100 100
102 100
104 100
106 100
108 100
100 102
102 100
104 100
106 100
108 100

The X value must plust with 2 until X=column meanwhile Y remain unchange . then at 6th column which is second row X=100 Y will be intial value of Y+2=102 the the same process will be repeat for second row.

This is my code so far
Dim lines1() As String = IO.File.ReadAllLines("C:\wirematchesout.txt")
Dim xValue As Decimal = Val(TextBox1.Text)
Dim yValue As Decimal = Val(TextBox2.Text)
Dim altValue As Decimal = 2
Dim lineTracker As Integer = 0
[Code] .....

Now I don't want to depend on the column value which is input by the user. I want to do automatically.Let say If my text file contain 131 lines. Since my row will be 2 which is fixed so it should take 66 lines as first row and 65 lines as second row and do the process that I explain above. If line is 132 then it will be 66 for first row and 66 for second row.

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How To Watch For Text File Change

Apr 16, 2009

I open a text file with notepad, so the user can see his contents, but if he changes the file, and save it, I would need to update a form.There is a way to watch for file updates?

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Reade And Change Value In Text File?

Jun 11, 2009

i have a text file which contain lines like this[code]...

But this code does not chage the value of red column before the seperator which is "|" .

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VS 2008 How To Load A Text File Into A STRUCT Type Array

Apr 25, 2009

I have a text file with the following information:

-----------------------------------------------
Model: Accord
Manufacturer: Honda
Year: 2004
VIN: FJ235FJSLO323434DJS

[Code].....

how to setup my loop to insert the text data into my struct array.

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.net - Change Label Text Into The Name Of The File Saved?

May 8, 2012

I'm trying to change the Label.text into the Name choose of the File that i'm going to save. This is the Code:

Dim saveDlg As SaveFileDialog = New SaveFileDialog
saveDlg.Filter = "JPEG (*.jpeg)|*.jpeg |All Files |*.*"
saveDlg.Title = "Save Picture"

[Code]....

i want to change the label text into the File saved names, i want show just the name and not the entire path.

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Cannot Change The Value Of Text Area Using Code Behind File?

Feb 16, 2011

I want a multi line textarea using VB.net.I have used textarea in html before but I have never used it in VB.net I tried:

<text area id="TA" cols="100" rows="20"></textarea>

I introduced space between text area only coz I cud not write it other wise in this forum.. in my code there is no space. But I cannot change the value of textare using my code behind file.

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Change The Format Of The Excel File To Text?

Aug 31, 2009

I want to change the format of the excel file to Text.how to do this?

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