Convert Hex String To Byte?
Jun 10, 2009I've tried CByte(hex) and Convert.ToByte(hex) neither work :/
View 1 RepliesI've tried CByte(hex) and Convert.ToByte(hex) neither work :/
View 1 RepliesI 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.
View 1 ReplieshI want conver my string to byte array.
how to convert my string to byte array in vb.net?
I have string in {&HF3,&HA1,&H01}
i want to convert it to byte array like {&HF3,&HA1,&H01}
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].....
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
i would like to convert a single byte to a string.
dim mybyte as byte = &h11
dim mystring as string
i tried
[code].....
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().
Public Function buildpacket(ByVal packet As PacketRecord) As String
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] .....
I'm working on a licensing system for my application. I'd like to put all licensing information (licensee name, expiration date, and enabled features) into an object, encrypt that object with a private key, then represent the encrypted data as a single text string which I can send via email to my customers.
I've managed to get the encrypted data into a byte stream, but I don't know how to convert that byte stream into a text value -- something that contains no control characters or whitespace. Can anyone offer advice on how to do that? I've been researching the Encoding class, but I can't find a text-only encoding.
way to convert byte array to ascii string?
View 3 RepliesI 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].....
The issue i have is i wish to take user submitted credentials on a form ascii encode them and output the encoded string. [code]...
View 11 RepliesWhat's the best way to convert a varying size byte array to a string, and then to convert it back?
View 3 Replies<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.
I am trying to convert each line in a file into a byte array. The line in the file is similar to this:
:100000000247A1E59620E7FBE4F596900780E0FF24
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] .....
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?
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]....
I've inherited a tested function that processes incoming data from a .NET Serial Port. (Dim RXBuffer as string = serialport1.ReadExisting) I've written a different part of the application that processes a byte array as received from an asynchronous .NET socket.
Is there a way I can convert the byte array into a string as if it arrived from the serial port?
I would prefer to rewrite a very long 'if statement' into byte array functions syntax that look like:
dim b as boolean = IsBitSet(state_buffer(i), j) 'rather than:
dim b as boolean = (Asc(Mid(RXPacket.Pdu, CInt((i - (i Mod 8)) / 8) + 1, 1)) And CInt(2 ^ (i Mod 8))) > 0
I just converted the following code from c# to vb.net. It is functional and works correctly with my company's firmware/devices. My next challenge. Previous serialport code used much more readable structs which where then converted (after building a packet) into byte() automatically as part of the serialport encoding. (this is my understanding)How could I
1. morph byte arrays 'ToSocket' and 'ToMTP' below into structs and
2. convert into byte array for Socket.BeginSend(byte(),.....) to stream out to remote devices?
Imports System.ComponentModel
Imports System.Text
Imports System.Net.Sockets
[Code]....
How could you convert a IntPrt to a Byte Array (Byte()) ?
View 19 RepliesI ahve String which i have formed in EBCIDIC format.Now This EBCIDIC string has to be converted to EBCIDIC Byte array.[code]...
View 1 RepliesWhats the best way to convert the string "ABCD-12345-EF" to a Byte() array of 41 42 43 44 2D 31 32 33 34 35 2D 45 46 ?
View 5 RepliesI 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?
View 8 RepliesI am trying to Convert a data field stored as IMAGE ( SQL Server 2000) using Java to a byte array using VB.NET Java uses signed numbers for a Byte array where as VB dosent. Can somone point me to how I can covert java byte array to VB byte array?
View 2 RepliesI have the following code in VB.net Dim bytIV() As Byte = {121, 241, 10, 1, 132, 74, 11, 39, 255, 91, 45, 78, 14, 211, 22, 62} I'm trying to convert it to php. $iv = array(121, 241, 10, 1, 132, 74, 11, 39, 255, 91, 45, 78, 14, 211, 22, 62);
[Code]...
Can any one tell me how I can convert an integer to a byte. I have a five digit interger and would like to have it as two bytes.
View 3 RepliesHow to convert byte array to pdf using asp.net.
my code is
Response.Clear()
Response.ContentType = "application/pdf"
Response.AppendHeader("Content-Disposition", "inline;filename=data.pdf")
[Code].....
How to convert byte array to ASCII in VB.NET System.Text.Encoding.ASCII.Getstring(y) it gives the data like 52414D41 . but i need "RAMA" instead of 52414D41.
View 6 RepliesMy application is reading in data from the serial port. The packet format uses 1 byte to tell the data length. The problem is as I am reading each byte in as a char when I try to get the value of the received character (using Asc(cRxd)) it only works up to values of 127, any bytes received that are over 127 are received as 63. I noticed that this was the default parity replace value, but I have parity.none set and I also changed the parity replace value. The received byte is always 63. I have tried reading the data using .ReadByte but this gives the same result - only works on values below 128.
View 1 RepliesI have a problem using FJ Core to convert image into byte.
I have a code written in C# which works fine.
The problem is when im running it in VB i get the exception: Arithmetic operation resulted in an overflow
It works fine in C# to convert a negative number into byte For Ex. (byte)-90024 = 88
But when i try to do it in VB i get the exception.[code]...