Convert String Containing Upper ASCII Characters To Byte Array?

Oct 9, 2008

How to correctly convert string containing upper ASCII characters to byte array besides looping through each character and filling the array using AscW(chr)?I know I can do something like:

Code:
Dim bSourceData As Byte() = System.Text.ASCIIEncoding.GetBytes(sourcedata)

But this only works for lower ascii characters (0-127).Instead of ASCIIEncoding I can specify encoding myself (System.Text.Encoding.Getencoding(encoding).GetBytes(sourcedata)). But I have to specify correct encoding in this case, otherwise most of special characters are converted to "?". What should I do if I don't know the encoding?

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Convert Byte Array To Ascii String?

Aug 12, 2010

way to convert byte array to ascii string?

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How would I copy/convert a string containing an ascii representation of hex values in to a byte array containing the actual hex values? For example, I have a variable containing the hex values delimited by spaces (I can change the delimiter):

[Code]...

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I have a byte array that I convert into a string like so Dim byt As Byte() = New Byte(255) {} s = New String(Encoding.ASCII.GetChars(byte))My question is when I look at the string in a debuger its clearly a normal string but when I compare it to what I know its supposed to be it doesnt equal. So i did a quick check and for some reason its return a string thats the length of 256 characters. So i did a s.trim and it still is 256 characters long.

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May 9, 2011

I'm working on decoding a NMEA sentence that is a compressed 8-bit string. I'm having a very hard time of wrapping my head around the bit manipulation needed to convert this string. If someone could get me started with this it would be great.

Here is the incomming string:

!AIVDM,1,1,,A,14eG;o@034o8sd<L9i:a;WF>062D,0*7D

and here is the expected output:

[code]...

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hI want conver my string to byte array.

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I have string in {&HF3,&HA1,&H01}

i want to convert it to byte array like {&HF3,&HA1,&H01}

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Aug 12, 2009

I have an activex control that outputs a template object to the client, which gets serialized to a byte array. My attempts to put this byte array in a hidden field for post back to the server have given mixed reults, in that the size of the byte array decreases when sent to the server. My best guess is that the byte array is being truncated when put into a (string) hidden field.

I convert the byte array to a HEX string on the client side before passing over to the server, then converting it back on the server - HEX to byte array. If found some examples of how to do this in C#, VB.net but I haven't a clue how to accomplish this on the client - vbscript, javascript, etc,

I'm guessing something like this would get it done on the server, but how would I accomplish this on the client side?

Private Function Bytes_To_String2(ByVal bytes_Input As Byte()) As String
Dim strTemp As New StringBuilder(bytes_Input.Length * 2)
For Each b As Byte In bytes_Input

[Code].....

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Mar 6, 2012

I m using encryption and decryption

When I use Return Convert.ToBase64String(ms.ToArray()), I can decrypt data by first Convert.FromBase64String(stringToDecrypt) and it works fine.

But if I dont use Base64string method when returning the data and use .Encoding.ASCII.GetString(ms.ToArray) and then try†to decrypt, I get "Bad data" error

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Dec 8, 2009

I'm trying to figure out how to†convert a string inot a byte array to send as a†packet over a socket. Initially it was used for serialport.write but I would like to use in
Socket.BeginSend(ByVal buffer() As Byte buildpacket()
Below†is taking a struct (listed at bottom) as an argument and building a string using†eg. Chr().

How can I†convert the output of†buildpacket(), eg. "yyyypyu"† into a†Byte().
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Dim temppacket As String
Dim checksum, i As Integer
'Build packet to Transmit
temppacket = Chr(255) & Chr(255) & Chr(255) & Chr(255) & Chr(254)
[Code] .....

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Nov 18, 2009

I have to set a value in the registry and it has to be in a unicode binary format. This is to change the default signature of Outlook.I have a signature called : TacoWhen I change my default signature in Outlook itself to Taco. It will be stored in the registry like this:54 00 61 00 63 00 6f 00 00 00However, when I change the value of this key programmatically like this:

vb
.SetValue("New Signature", Text.Encoding.Unicode.GetBytes("Taco"), Microsoft.Win32.RegistryValueKind.Binary)

[code].....

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Dec 2, 2009

The issue i have is i wish to take user submitted credentials on a form ascii encode them and output the encoded string. [code]...

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I have an array defined As string and the value stored in site is like "7E", "A1" and so on. But in order to send out this array through serial port. I need to change the the array to As Byte instead of using As String. How can I convert it?

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Jul 20, 2011

<div class="body">

I have a word document data been inserted into database as VarBinary(max) column. Now, i need to fetch this information and display in my aspx page directly.I am getting this value from database in Byte Array and try to convert that into string and add that string to a div.I am using the below two ways: In both the ways first i am getting them to a temp txt(in 1st way) and doc (in 2nd way) files and reading back those file I am using .net 2.0 frame work

Write Method:Writing data to temp file(either doc or txt based on the filepath which has filename)
Eg: filepath: "c:temp.doc"
Public Sub writeFileData(ByVal strFilePath As String, ByVal bytFileData() As Byte)
Try

[code]....

Failure reasons: I am getting the output as some symbols, prob because the server is not able to read the format of the word content.how to read the word document data in binary data to a string.

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I am trying to convert each line in a file into a byte array. The line in the file is similar to this:
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I have code and have tried several things but they don't seem to be working out.
Dim fileline As String = ""
Dim linebytes() As Byte = Nothing
Dim idx As Integer
' Make sure the file is open for transferring the data to the board.
If Not (SoftwareUpdateFilestream Is Nothing) Then
[Code] .....

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Aug 7, 2009

So I have an ASP.Net (vb.net) application. It has a textbox and the user is pasting text from Microsoft Word into it. So things like the long dash (charcode 150) are coming through as input. Other examples would be the smart quotes or accented characters. In my app I'm encoding them in xml and passing that to the database as an xml parameter to a sql stored procedure. It gets inserted in the database just as the user entered it.

The problem is the app that reads this data doesn't like these characters. So I need to translate them into the lower ascii (7bit I think) character set. How do I do that? How do I determine what encoding they are in so I can do something like the following. And would just requesting the ASCII equivalent translate them intelligently or do I have to write some code for that?

Also maybe it might be easier to solve this problem in the web page to begin with. When you copy the selection of characters from Word it puts several formats in the clipboard. The straight text one is the one I want. Is there a way to have the html textbox get that text when the user pastes into it? Do I have to set the encoding of the web page somehow?

[Code]...

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Jun 22, 2012

I'm trying to read the binary data from a binary file with the code below but the it's return the value in the byte array. How can i read the binary data from the binary file and then convert the data into string?This is how i create the binary file.

Dim fs As New FileStream(Application.StartupPath & "Agency.dat", FileMode.OpenOrCreate)
Dim bf As New BinaryFormatter()
Call bf.Serialize(fs, GAgency)[code]....

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I'm programming in VB.NET using Visual Studio 2008. I need to define a string literal containing the character "√∑" equivalent to Chr(247). I understand that internally VS uses UTF-16 encoding, but when the source file is written to disk it contains the single byte value F7 for this character.

This source file is processed by another program that uses UTF-8 encoding by default, so it fails to interpret this character correctly, attempting to combine it with the following single-byte character. What encoding would correctly interpret the single byte F7 as the single character √∑?

Alternatively, is there a way of expressing a non-ASCII literal that uses only ASCII characters - like using some kind of escape sequence?

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I'm using this code to return some string from a tcpclient but when the string comes back it has a leading " character in it. I'm trying to remove it but the Len() function is reading the number of bytes instead of the string itself. How can I alter this to give me the length of the string as I would normally use it and not of the array underlying the string itself?

Dim bytes(tcpClient.ReceiveBufferSize) As Byte
networkStream.Read(bytes, 0, CInt(tcpClient.ReceiveBufferSize))
' Output the data received from the host to the console.'

[code]....

Len() reports the number of bytes not the number of characters in the string.

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Admin Note: all the communication on the forums.

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[Code]...

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Code:
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[Code]...

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[Code]...

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[code]....

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[Code]....

but VB.NET Express 2008 gives me the error that Error†1†Value of type '1-dimensional array of Byte' cannot be converted to 'Short'.

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1 byte
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[code]....

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[code]....

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[code]....

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Structure Record
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[code].....

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