Convert A Byte Array From Socket Into A String To Replicate - How The Serial Port Receives Data
Sep 21, 2010
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
View 3 Replies
ADVERTISEMENT
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.
View 2 Replies
Dec 8, 2009
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]....
View 3 Replies
Jan 25, 2011
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.
View 1 Replies
Jul 23, 2009
i'm designing this window application wherby it has to get the data from serial port and new data will be display at the textbox.my textbox namely textbox1, textbox2.. till 20.so when 1st data comes in, it will be place to textbox1 then when 2nd data comes in, it will be place at textbox2 and so on.
Now. Should i place the data as array and do textbox array or is there a way to put the data as the for loop runs?i've tried using for loop and textbox + 1 but its not working.
View 12 Replies
Nov 2, 2011
hI want conver my string to byte array.
how to convert my string to byte array in vb.net?
View 2 Replies
Dec 23, 2010
I have string in {&HF3,&HA1,&H01}
i want to convert it to byte array like {&HF3,&HA1,&H01}
View 1 Replies
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].....
View 3 Replies
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
View 11 Replies
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().
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] .....
View 4 Replies
Aug 12, 2010
way to convert byte array to ascii string?
View 3 Replies
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].....
View 4 Replies
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]...
View 11 Replies
Mar 11, 2010
i knew Serial ports are a type of computer interface that complies with the RS-232 standard. They are 9-pin connectors that relay information, incoming or outgoing, one byte at a time. Each byte is broken up into a series of eight bits, hence the term serial port.And I want to write a program chatting through Serial Port.
View 3 Replies
Oct 7, 2009
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?
View 8 Replies
Sep 24, 2010
What's the best way to convert a varying size byte array to a string, and then to convert it back?
View 3 Replies
Aug 30, 2010
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] .....
View 8 Replies
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?
View 1 Replies
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]....
View 1 Replies
Aug 16, 2011
i am a absolute beginner and i want to use vb to receive data from micro controller through serial port using rs232 standards, i found this code to receive the data serially, can any one tell me where should i paste this code, so that the data received will be displayed in message box.Private Sub DataReceived(ByVal sender As System.Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) HandlesSerialPort1.DataReceived
[Code]...
View 9 Replies
May 3, 2012
I need to be able to write signed bytes to a serial port using SerialPort.Write() method, except that method only takes byte[] arrays of unsigned bytes, how would i write a signed byte to the serial port?For what I'm working on the particular command takes values from -1700 to 1700.
View 1 Replies
May 25, 2009
I have to send the user-input data to the serial port. From the serial port the Modbus controller reads the data in Modbus/RTU mode.Now consider the following:Private WithEvents sp as serialport Now when I send sp.Write "192" to the serial port, I was that the complete data go as one data packet. Instead what I find that when this data is sent to a hardware controller, I find that the serial port first transmits 1, then 9 and then 2. Because of this my modbus does not recognize this data and throws and error. I tried sending "12" and again i find that it goes as "1" and then "2". Is there any way to send the data as one data packet so that my modbus can read "192" as one data packet value and not as 3 data packets of 1, 9, and 2?
View 3 Replies
Aug 28, 2009
I am trying to communicate with an external device and i am trying to send a byte array to the external device via sockets but i am always getting a response the message size is too small so i am not sure what i have done wrong. Between the data type there should be no alignment present and all numbers are represented in little endian format. The char array is not null terminated as mentioned in the protocol specifications.I have to send data based on a struct that embeds 2 other struct. So here's my vb.net code for the struct used to convert to byte array and the sending part.[code]
View 6 Replies
May 7, 2009
I'm writing a C# application that reads data from an SQL database generated by VB6 code. The data is an array of Singles. I'm trying to convert them to a float[]
Below is the VB6 code that wrote the data in the database (cannot change this code):
Set fso = New FileSystemObject
strFilePath = "c: emp emp.tmp"
' Output the data to a temporary file
[Code]....
The problem here is the VB6 binary to string conversion. The VB6 string char is 2 bytes wide and I don't know how to transform this back to a binary format I can handle.
Below is a dump of the temp file that the VB6 code generates:
And here is the dump of the data as I read it from the database in (=the VB6 string):
View 5 Replies
Nov 27, 2010
I'm mohammed from Oman ,I'm visual studio.net programmer How I can Read the Data From Barcode Weight scales By Serial port and TcpIp port
View 7 Replies
Nov 18, 2010
How could you convert a IntPrt to a Byte Array (Byte()) ?
View 19 Replies
Mar 24, 2010
I 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 Replies
Dec 27, 2010
I ahve String which i have formed in EBCIDIC format.Now This EBCIDIC string has to be converted to EBCIDIC Byte array.[code]...
View 1 Replies
Aug 27, 2009
I'm new to .net. I would like to know how to convert a text data in string or in a file into a simple byte array[ ] format.
View 3 Replies
Mar 24, 2010
how can i, for example add a datum from the rs232 with other variable here is my code:
Dim ii As Byte
Dim c(100) As Char
c = Me.SerialPort1.ReadExisting()
[Code]....
View 19 Replies
