Convert The Arry.length To Byte?
Jun 3, 2009i need to know how much space an array of bytes will use on an hard disk
View 9 Repliesi need to know how much space an array of bytes will use on an hard disk
View 9 RepliesI 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
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I have a field displaying on a datagrid that the user has asked to be variable length based on the data that is returned. Is there an easy way to determine how many characters are returned for a field and then converting that to a pixel length so that I can change the length of the field in the code.
View 2 RepliesHow could you convert a IntPrt to a Byte Array (Byte()) ?
View 19 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 RepliesGiven a byte array of length 100..I would like to find a function that returns a byte array starting at index 15 and containing the next 20 bytes.
View 4 RepliesSeen this in
Dim file as FileStream = New FileStream("myfile.text", 0, FileMode.Open, FileAccess.Read)
Dim reader as BinaryReader = New BinaryReader(file)
Dim data as Byte() = reader.ReadBytes(CType(file.length, Integer))
Why is the file.length being converted to Byte, when Integer range is greater, and the code not failing to do so? I don't understand.
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 Repliesi create a arry like :
Dim DetailsList As New List(Of entInvoiceDetails)
where contain BookId
i need to compare BookId when i add a new BookId
I 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);
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given the following Sub, how would I initialize byte array 'temp'to zeros and give it the length of the incoming byte array passed into the subroutine?
Sub ReceivePacket(ByVal buffer As Byte())
Dim temp() As Byte 'initialize to zeros and length of buffer
temp = buffer.Skip(17).ToArray()
End Sub
I have developed an n-arry tree. (like a binary tree but with numerous leaves per branch) in the hopes of developing a neural network test. The tree is built in a custom tree class that adds to the tree each run. Each time, new segments are added to the tree from 1 individual action. It can only have 1 action per run, so I might do action 1 the first time, and have a giant branch under that, with nothing under action 2 and action 3. The second run, it chooses action 2 the first time, so now I have a giant branch under action 1 and action 2, and nothing under action 3. That works all fine. The part that isn't working is the treeview I am using to display the tree after each group of actions is finished. Code is below.
It works fine the first run through. Except I'm not quite sure how to check whether a branch exists for the second run through, so instead of adding a second group of action 1, action 2, action 3, it jumps down that branch.
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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")
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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've tried CByte(hex) and Convert.ToByte(hex) neither work :/
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]...
How to convert byte to bitmap
Dim ScreenshotBytes As Byte() = MySQLExecuteReader("SELECT Screenshot FROM Connections WHERE Connection='EC8C35F2'", "Screenshot")
Dim ScreenshotMemoryStream As System.IO.MemoryStream = New System.IO.MemoryStream(ScreenshotBytes)
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But I don't know how to get the bytes from the mysql server:
Public Function MySQLExecuteReader(ByRef StrCmdText As String, ByRef StrColumn As String)
'On Error Resume Next
Dim MySQLComm As New MySqlCommand(StrCmdText, Connection)
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I want to return the byte from the column: "Screenshot" which is an image (MEDIUMBLOB) so I can use it as a background for a picturebox.
Ok, I am tasked with changing certain text labels that exist within 1000's of CAD files. The only way to change the text labels, as of now, is to open each CAD file in a CAD editor, change the labels by hand, and save it as a new file name, and that will take forever.So, I want to make this job easier and to do that I need to write a program to do it automatically (not a Macro). So far, I have made an app that loads the CAD file's bytes, finds the position of the label's text bytes, and replaces the text bytes with my own bytes, and saves the file under a new name.The problem is, I don't know the format/encoding/whatever they used to write the string to bytes..... The good thing is, I have unlimited examples to learn from because I can use the CAD program to change the text and then see the results in Hex. I want MY program to mimic the results.Here is some hex examples;
13 BE FD F9 00 = wood
0F 1E 1E 80 = cat
0F 26 FC E0 = dog
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Iam using to vb.net I cannot know convert video to byte>
View 1 RepliesI want to generate such array number
001
002
003
004
005
I have a jpeg file that is being held as a list(of Byte). Currently I have code that I can use to load and save the jpeg file as either a binary (.jpeg) or a csv of bytes (asadsda.csv). I would like to be able to take the list(of Byte) and convert it directly to a Picturebox without saving it to disk and then loading it to the picturebox. If you are curious, the reason I get the picture file as a list of bytes is because it gets transfered over serial via an industrial byte oriented protocol as just a bunch of bytes. I am using VB.net, but C# example is fine too.
View 3 RepliesBasically what I'm now trying to find out is simply how to convert an Executable file into byte or byte array as i've heard it called, and then back again. I had a friend used to do it with a program in VB6 a few years ago where he would convert the EXE into byte and store it in a sql database and then his boss would be able to retrieve it later on when he was out on business overseas and it seemed to work very well.I'd like to know how to do it in VB.NET, however after going through some sites using google search I have come up short.
View 6 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 am reading/writing a fixed length header into a stream and I need to do the following in VB:
1. Convert a 2 byte integer (int16) into a byte array
2. Read 2 bytes of a byte array into an integer variable
I have a very simple question about converting a byte array into 16bit integers. I am connected to a device through a serial port. It sent me six bytes which represent three Int16 integers. For example, the byte array is called newRecievedData(5) and has a length of 6.
The manual that came with the device claims that the int Format is 8 bit MSB|8 bit LSB. Does that mean the following?
newRecievedData(0) contains 8 high bits of the first Int16
newRecievedData(1) contains 8 low bits of the first Int16
newRecievedData(2) contains 8 high bits of the second Int16
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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'.
I'm trying to check whether a Win(RAR) archive is password protected.
0x74 0x24 0x94
How can I convert 0x24 0x94 to bits and check whether the file is encrypted with a password?
HEAD_TYPE Header type: 0x74
1 byte
HEAD_FLAGS Bit flags:
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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
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