Lets say I wanna write a string "Hello World" into a MemoryStream and read this string to MessageBox.Show() without using Helper objects such as BinaryWriter and BinaryReader and StreamWriter and StreamReader etc.
how to accomplish this with low-level functions of MemoryStream stream object.
P.s: I both use C# and VB.NET so,
Just starting up on VB 2008 Express (.NET). Trying to write to and read from a file. It runs without errors, but the messagebox only shows the 'OK' button, not the contents of the file as I want. I thought that maybe I have to rewind the file before reading, but AFAICS there is no 'StreamRead.Rewind' or Reset or something.
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After opening a TCP stream and writing to it via Stream.write, how can a reply be received (on the same port) and processed?
View 4 Repliesin an winForm app in VS2010 win 7 compiling to x86, I try to do what Alvas.Audio seems to work. See (c# ex: [URL] for reference.
Dim data() As Byte = wr.ReadData(second * i, second)
The result give me data.length()=0. I do not have any exception, I can read format from it and whatever reader I use I got this problem.EDIT : After some tests, it seems like the uncompressed file I create in the first step (in PCM format, with .wav extension) can not be recognized by the Alvas.audio library for the second step. I must miss something around Audio file markups or something alike.
Here is the code that might be the source (basically this is step 1):
Dim functOut As String = String.Empty
Dim wr As Alvas.Audio.IAudioReader = Nothing
Dim fs As IO.FileStream = Nothing
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How can I write the resulted stream to be sure I can read it again later?
How can I write and read a string array to a text file?
View 2 RepliesI would like to read an HTML file, search each line to see if it starts with </head>. Then add the centering code after it. That line at destination file should read:
</head><table border="0" cellpadding="0" cellspacing="2" width="760"align="center"><tr><td>
After this I don't care to search for anything. Just read from source and write to destination. I know there are programs out there to find/replace text in series of files but I am not allowed to use external programs.
I have a small problem with this code. I am adding information to my listview from multiple textboxes. As I add the info I automatically update a text file with the code shown below. The problem I have is When I add my first row the code will not write the data back to the text file, however if I add a second row the code is quite happy to write both rows of data back to the text file. I cannot for the life of me see what is wrong.
'Write tool info to text file
Dim outputstream As StreamWriter = File.CreateText("C:\MFSProFiles\" & CObj(PartNoTextBox.Text) & ".tme")
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I have an embedded DLL in my app and I need to write it to the filesystem at runtime. I have this so far:
Dim _assembly As Assembly = Assembly.GetExecutingAssembly()
Dim _rawstream As Stream = _assembly.GetManifestResourceStream("MyFile.dll")
I just need to write _rawstream to a file now.
EDIT: This has to be .NET Framework 2 and CopyTo does not exist
This app is trying to send messages to a client listening on the port. The client's logs show that their port is being opened and closed, but no data coming in. Is there a bug or something missing in the following code, like perhaps stream.flush or stream.endwrite or a thread.sleep(0) line, that could cause this? The puzzling thing is, WireShark on the client computer does show the message my app is sending coming into the listening port.
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i'm using the following code in order to send the bytes of a picture into the stream table:
Dim FirstColumnNames As String = imTable(0) & "_Code, " & imTable(0) & "_Price, " & imTable(0) & "_Title, " & imTable(0) & "_Type, " & imTable(0) & "_Height, " & imTable(0) & "_Width, " & imTable(0) & "_Comments "
Dim FirstFieldsValues As String = "'" & imParam(1) & "', '" & imParam(2) & "', '" & imParam(0) & "', '" & imType.ToString & "', '" & imHeight & "', '" & imWidth & "', '" & imParam(3) & "' "
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The tables have the fllowing stracture Thats the First Table:
myCommand = New SqlCommand("CREATE TABLE " & TablesStat(0, 0) & _
" (" & TablesStat(0, 0) & "_ID int NOT NULL PRIMARY KEY IDENTITY(1,1), " & TablesStat(0, 0) & "_Code varchar(20) NULL, " & TablesStat(0, 0) & "_Price money NULL, " & TablesStat(0, 0) & "_Title varchar(50) NULL, " & TablesStat(0, 0)
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End the second table is:
myCommand = New SqlCommand("CREATE TABLE " & TablesStat(1, 0) & _
" (" & TablesStat(1, 0) & "_ID int NOT NULL PRIMARY KEY IDENTITY(1,1), " & TablesStat(1, 0) & "_GUID UNIQUEIDENTIFIER ROWGUIDCOL NOT NULL UNIQUE , " & TablesStat(1, 0) & "_" & TablesStat(0, 0) & "_ID int FOREIGN KEY REFERENCES " & TablesStat(0, 0) & " (" &
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My problem comes when i'm trying to read the 'filePathName' and the 'fileToken'the privious SELECT GET_FILESTREAM.... return me only one colomn to read the colomn 0 which has the GUID in binary format I know i'm doing something wrong but i don't know what My issue is that i'm not geting th 'filePathName' and the fileToken'?
I am trying to test a rest webservice but when I do a post and try to retreive the save the response stream to a file I get an exception saying "Stream was not readable." What am I doing wrong?
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how to write classes. I have been searching and I understand classes a little. What I am confused on is how to write a class that contains more than 1 bit of information. How would I write a class that contains someone First Name, Last Name, Age, Address, City and State they live in. For instance all the information in the class can be retreived if I enter the person last name. And the class has to have more than 1 person infomation in it.
View 8 RepliesI am trying to read the following xml stream but am really struggling.
<channelSnapshot xmlns="urn:betfair:games:api:v1">
<channel gameType="BLACKJACK" id="1444077" name="Exchange BlackJack">
<status>RUNNING</status>
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If the element is between a start tag and end tag such as
<status>RUNNING</status>
Then I can access the value ok. I have been using Select Case xmlnodetype but using this when the nodetype is a whitespace I can't get to the element beyond the whitespace.So that in the following line
<property name="Card 1" value="NOT AVAILABLE"/>
I cant get to anything beyond the word property.
i have made tcp connection to this webpage using tcpclienti can send commands like GET /Pagename.aspx to get the htmlnow is it possible that from webpage.aspx i can get the connected client stream and write to it and tcpclient gets that data ?
View 1 RepliesI am trying to read a xml file (from a stream) like the one below. I need to read the xml element "recipientPhone" first,then I could read element "contents" so that I could save base64 data as file with the name coming from recipientPhone.I am using while xmlReader.read() to read the xml, is there a way that I could read element "recipientPhone" before "contents"?
xml sample:
<fax>
<clientInfo>Attachments: 2</clientInfo>
<contents><contentType>0</contentType>
<data>data1</data>
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I'm trying to make GUI for my batch script (don't laugh ) I'm using Microsoft Visual Basic 2010 Express and I just need one textbox and one button, button should start the VLC Media Player with any stream that I paste in textbox
View 6 RepliesI'm trying to read in some text from a tcp stream. I know that the text has a unicode control character as the first character (0x0b) because the sending mechanism inserts it in front of all outgoing messages. I know it is an unreadable/unprintable character but would I would like to do is know how to read this character in and know that it is a 0x0b.
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I am trying to use the vb.net method FileGet to populate a type library from a text file. This text file was created by a legacy application using vb6. In the vb6 code, the Put method was used to create this file by dumping the type library into the file. I'm using the same type library to parse back into using the FileGet method. The only difference is that the type library is now an interop dll. When I use the FileGet, it works for most of the files that I'm trying to read.
However, there are a few that give me the error: "Unable to read beyond the end of the stream." Does anyone know what would cause this error and how I can fix it?I've already tried to add a space and a line break at the end of the file.This did not work. I've searched for the solution but have not found anything that has worked.[code]...
I have an issue in streaming database.I have already write an image there and now i want to recall and put it in a PictureBox.
View 4 RepliesI was using a break point in this method to make sure every was running right with it. Basically it is a loop to read until the end of a stream but rwNumber resets after it gets to line 50. Does objreader.read have a limit on it i am not sure.
Public Sub FormatText()
Dim filePath As String = openFileDialog1.FileName
If filePath = Nothing Then
MessageBox.Show("You have not opened a file yet")
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I am attempting to read from a url into a System.IO.Stream object. I tried to use
Dim stream as Stream = New FileStream(msgURL, FileMode.Open)
but I get an error that URI formats are not supported with FileStream objects. Is there some method I can use that inherits from System.IO.Stream that is able to read from a URL?
Radio button 2 beacuse there are 3 and you have to pick one (The right one) to advance on to the next form.
View 4 RepliesIs there a method of using the stream reader to read webfiles?
View 1 RepliesI was taking code called from an event and making a function of it
Public Function asyncPostMS(prefixes() As String, ms As MemoryStream) As Stream
Dim request As WebRequest = WebRequest.Create(prefixes(0))
request.Method = "POST"
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Now when I call this using the new function the stream is already closed. How do I pass out a stream object from a function as an already "read" object.
Or do I need to create the stream outside the function?
I need to read strings by stream! Is this possible? I've been searching for quite a while now, without results.So what i have is an application which gets song lyrics. The lyrics come in a string and i need to separate the string into multiple lines. Just to make that clear, lets say that im getting this text and put it into a string:
Bla bla bla..
Na nana na
And in string format = "Bla bla bla... Na nana na" but what i need to do is separate them into its original, line by line.I created an for each loop which looked for upper chars and when found, create a new line. But that didn't work out so well since the lyrics are written in proper english, using the upper "I" everywhere. So i created a new loop which ignored "I":es if they were followed by a space/blank " ". That didn't work either, it skipped some sentences.
I 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
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but there is something is not correct,
I have a text file name list.txt which contains data like following;
AC-No. Name Time State New State Exception
100 ZULFIQUAR 09/04/2012 01:53 PM C/In Invalid
100 ZULFIQUAR 10/04/2012 01:39 PM C/In Invalid
100 ZULFIQUAR 11/04/2012 01:38 PM C/In Invalid
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What I am trying to do is stream write to a text file information from 5 columns I have in my list view and then read the data back into those columns as required. I have manage to write the data to the text file in this format
View 4 RepliesFrom few days I am doing efforts to read web pages using webbrowser control in my desktop application. But it is very slower than my expectations(because I want to read lots of pages in minutes and browser control reads almost one page in 5 to 10 seconds), what I need is to read two or three tags written in web page.
So finally I decided to use something, which can give me only source code of page. I think StreamReader will help me to read it. I am not sure if it is flaxible with my purpose, or something else is there which can give me only html source code of web page.
I have written this code to read html code, but it gives error.
Quote:
System.ArgumentException: URI formats are not supported.
public static string Navigate(string URL)
{
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I have this code that was working in a proof of concept app I had - but now will not work.
For Each ddfile As String In ddfiles Dim MyThread As Thread ' simple new thread Dim newFS As FSObject = New FSObject() 'new FSObject which is a file object I made up' used because i needed to keep the name and index matched so the callback function had something to work with
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