Conversion Of Byte Array To Memory Stream?
Aug 25, 2010how to convert byte array to memory stream in vb.net.
View 1 Replies
ADVERTISEMENT
Converting Memory Stream Byte Array To CSV File
Sep 26, 2011How to convert memorystream byte array to csv file. I have GetExport method that converts rpt file to excelformatted memorystream and then returns that as a byte array. Is there a way to convert this byte array to a csv file? Due to some reasons I can only pass this byte array back to calling function.
Public Function GetExport(ByVal reportID As ReportID) As Byte()
Dim byteArray As Byte() = Nothing
Using expRptDoc As ReportDocument = New ReportDocument()
Dim rptFileName As String = Server.MapPath(ReportCommand.GetXMLReportPath(reportID))
expRptDoc.Load(rptFileName)
[Code] .....
Read A Stream And Save It As Byte Array?
Jun 25, 2009I try to read a stream and save it as byte array to add it later to zip file.this is the code that I use
Dim totalbytes As Byte() = Nothing
Dim iBytesRead As Integer
Dim sChunks As FileStream = File.OpenRead("c:myfile.wav")
Dim Totalread As Int64 = 0
[code]....
but there is something is not correct,
Convert A File In Memory To A Byte Array?
Jul 27, 2010I am using IonicZip to compress video files and store in a blob field. I have the zip file created just need to convert it to a byte array. How is this done without writing to the harddrive?
View 1 RepliesC# - Conversion From VB6 String Data To .NET Byte Array
May 7, 2009I'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):
Communications :: String Variable After Conversion From Byte Array?
May 23, 2011I have a strange problem with the following code:
Code:
Private Sub Listener()
Dim infiniteCounter As Integer
[code]......
Implicit Conversion From Object To 1 Dimensional Array Of Byte?
Jul 15, 2011I am getting this warning in my code, and for the most part I have ignored it.
Friend Sub StartTablet()
Dim success As Boolean
Dim eventObject As IntPtr = IntPtr.Zero
[code]....
Copy Byte Array To Memory Location Of A Instance Of A Class?
May 25, 2012I am trying to copy a byte array into a Class that is in a third party library
Dim usr As New RSI_USER_RECORD Dim ba(RSI_USER_RECORD.RSI_LEN_USER_REC - 1) As Byte 'populate ba here usr = ba 'how can I do this? Is this even possible?
Here is the definition of the class (from Reflector)
[Code]...
Set Owner / User Password - Rendering As A Pdf Into An In Memory Byte Array
Aug 8, 2007I have a reportviewer that I am rendering as a pdf into an in memory byte array. What I need to do is apply an owner and user password for the pdf. I have downloaded the adobe sdk and have scoured the Internet for examples to do this to no avail. with a VB.NET example that will apply the owner and user password for the pdf.
View 2 RepliesVS 2010 Get A String From A Byte Array Previously Read From Memory?
Mar 27, 2011I'm trying to get a string from a byte array previously read from memory
i can get the string like this
dim mem as string= ASCIIEncoding.ASCII.GetString(memory) or dim mem as string= UTF8Encoding.UTF8.GetString(memory) but when i try to concatenate this with another string i get a strange result dim result as string = "this is you memory string " & mem & " problem string" no matter what comes after mem in the concatenation it seems like it is not there when in fact it is because when i try this (mem has two chars in it) dim result as string = "this is you memory string " & mem(0) & mem(1) & " problem string" problem string appears so what i assume is that there are some vbCrLf chars in the string after reading (or is it from the conversion?)
Conversion Of A Text Data In String Or In A File Into A Simple Byte Array[ ] Format
Aug 27, 2009I'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 RepliesChange Byte() To Structs For Readability And Convert Struct To Byte Stream For Socket Send()
Dec 8, 2009I 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]....
Crypto Stream To Memory Stream?
Nov 22, 2011I have a problem with the cryptostream, if i write the stream to a memorystream the memory that the stream used is still alocated and i have no way of unalocating it.what am i missingdoing wrong? im using-using on the streams,readers and crypto stuffs so the framework should shut them all down right? i tryed calling .close and .dispose but nothing ,in fact i moved it all over I have provided the sub that im using for the encrytion im in .net 4.5 so there is a lil async stuff but i know thats not the problem coz i moved this code out of my main app(.net 4) for testing to see if i could fix the problem.[code...]
View 12 RepliesConvert Java Byte Array To .NEt Byte Array
Mar 24, 2010I 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 RepliesCombine Byte Arrays, Read Specific Sections, And Then Cut Byte Array At Specified Point?
Apr 6, 2011Objective: Combine byte arrays, read specific sections, and then cut byte array at specified point.
Private Sub DataArrival(ByRef aBot As xyzSocket, ByRef theData As Byte())
Dim RDLength As Int32
If aBot.ReceivedData Is Nothing Then[code]....
I'm not sure if I have this right to begin with because I can't test it without having it completed.
.net - Extra Byte In Network Stream?
Feb 15, 2011I have an .net application with 2 processes, communicating using a network stream.The protocol consists of a set of commands, some with parameters, which are sent through the stream to the server. The server processes the command, and sends a response.
The protocol for one of the commands looks like this:
[code]...
Usually, this works fine. Very rarely (probably once every few millions of calls), The reading side gets the wrong values. I added code to trace the values sent and received. This shows that occasionally, the reading side gets two extra bytes, with the value 0, which was not sent by the writing side. These extra bytes appear in different places, e.g. in one case they were between i1 and i2; in another they were between the first and second byte of s2. Does anyone have any idea where these 2 bytes could come from? I checked my code, and every place that writes to the stream is traced, so it doesn't look like they are actually written to the stream. It might be worth noting that s1 is always 0, in the current implementation.
Error: Value Of Type Ƈ-dimensional Array Of Byte' Cannot Be Converted To 'Byte'
Jul 13, 2012how to upload file using fileupload control into sql database. I have class where i created insert function and getting info frm the .aspx.vb file
Class File
========
Imports System
Imports System.Data
Imports System.Data.SqlClient
[coe]....
Convert A Byte Stream To A Text String?
Mar 31, 2011I'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.
Most Efficient Way To Merge 2 Byte Arrays Into 1 Byte Array?
Sep 20, 2011I have 2 byte arrays. I want to merge these two byte array into 1 byte array.Usually, I just create a new byte array with length = byte array #1 + byte array #2. Then copy byte array #1 and #2 to the new byte array.do I have more efficient way to merge 2 byte array using VB.NET and .Net 4?
View 2 RepliesValue Of Type Ƈ-dimensional Array Of Byte' Cannot Be Converted To 'Byte'
Mar 30, 2009I would like to create a function so that I can pass a string and it will return me the binary value, I will use this later in other parts of the script but I am getting an error that I don't understand.
Private Function ConvertToMD5(ByVal OldPassword As String) As Byte
Dim NewPassword As String = ""
'The string we wish to encrypt
[code]....
On the "Return hashedDataBytes I get "Value of type '1-dimensional array of Byte' cannot be converted to 'Byte'"
Clear Memory Stream?
Apr 17, 2009'in form class
Dim PIC_PATH As String
Dim PICTURE As Image
[code].....
Loading SWF From Memory Stream?
Dec 5, 2006I'm using the ShockwaveFlash ActiveX control in a VB.NET Windows Forms application and i'm wondering.Is it possible to load an SWF file into the ShockwaveFlash ActiveX object from a memory stream rather then from a file name?
I've noticed that the ActiveX object has such properties as "InlineData" and "MovieData", possibly these could be used.
I've also noticed someone has used Windows Messaging to send a pointer to a stream to the ActiveX control, has anyone seen this done?
Operator '&' Is Not Defined For Types '1-dimensional Array Of Byte' And '1-dimensional Array Of Byte'.
Feb 26, 2012I have 9 1-dimensional arrays of bytes and 1 of them is empty, I want to make the empty one equal to the others put together like you would a string:
Dim bla As String = "bla" & "bla" & "bla"
'now bla = "blablabla"
but instead:
[Code]......
Read A Raw Byte Array From Any File, And Write That Byte Array Back Into A New File?
Sep 20, 2009How do I read a raw byte array from any file, and write that byte array back into a new file?
View 3 RepliesPlay Video Files (atleast Wmv, Avi) From A Byte Stream?
Mar 1, 2009I am trying to play video files (atleast wmv, avi) from a byte stream in vb.net.Is it possible to direct this data at a wmp control?I have done this successfully with images & picture boxes, just need help with the video.
View 1 Replies.net - Load A File Into Memory Stream?
Jun 2, 2011I have a filename(including it's path) in a string. Now i want to load this .csv file into memory stream. ex: Dim filename as string="C:UsersDesktopabc.csv"
View 2 RepliesPlay Video From Memory Stream?
May 5, 2010I have an application that sends Bytes of data through UDP, these bytes are read from an AVI file when the client receives the bytes it builds the AVI file on another computer perfectly but I want to be able to use the received bytes to play the video from the stream. Does anyone know how I can play the video from a stream? I tried using DirectShow but I don't know how to use a stream as video let alone having AVI files play with DirectShow.
My main goal is to have the application slowly "buffer" the movie for the client as they watch.
VS 2010 : Get A Memory Stream To A Textbox
Dec 15, 2011im trying to get a memory stream to a textbox, the memory stream is of a .txt or .ini file that is extracted from a archive to a memory stream.Heres what ive got so far:
vb
Dim MSData As New System.IO.MemoryStream() Dim Infile As String = ComboBox10.SelectedValue 'The input archive Dim passww As String = TextBox1.Text 'Archive password Using extr As New SevenZipExtractor(Infile, passww) extr.ExtractFile("02.ini", MSData) End Using Dim sr As StreamReader = New StreamReader(MSData) Dim textSsS As String = sr.ReadToEnd() ini02.Text = textSsS
The problem is that ini02.text stays blank?
Check Packet Size Of TCP Data Before Reading Next Byte In Stream
May 25, 2009I am sending data to server via TCP IP Connection. I am using a continuous loop at the server end - that accepts new clients and while streams can be read, it reads data stream.
The data is sent from the client with 2 leading bytes of data that represent the size of the packet of data sent and type of data.
My question is: how do I retrieve the size of the data packet and then check that this amount of data has been retrieved?
[Code].....
Check Packet Size Of TCP Data Before Reading Next Byte In Stream?
May 25, 2009I am sending data to server via TCP IP Connection. I am using a continuous loop at the server end - that accepts new clients and while streams can be read, it reads data stream.
The data is sent from the client with 2 leading bytes of data that represent the size of the packet of data sent and type of data.
My question is: how do I retrieve the size of the data packet and then check that this amount of data has been retrieved?[code]...
