Error - Stream Not Writable
Jun 6, 2011I am not seeing why this won't work.
private void FNameTB_TextChanged(object sender, EventArgs e)
{
friend.FName = Console.ReadLine();
}
[code]....
I am not seeing why this won't work.
private void FNameTB_TextChanged(object sender, EventArgs e)
{
friend.FName = Console.ReadLine();
}
[code]....
I'm trying to remove the first and last lines from a text file. Obviously the last line will be at an undetermined position (i.e. line 50 or 5000). I couldn't figure how to remove the lines, so I wrote code that would rewrite every other line:
View 6 RepliesI wrote the code below and I got an error (Stream was not readble) while execute this line SR = New StreamReader(FS) why and how to fix it
the code :
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim FS As FileStream
[Code].....
I want to save a bitmap object to file, but I want to make sure the file path is writeable first. The user should have write permissions to the folder and it should not be a location on a CD drive.Right now, it gives a "A generic error occurred in GDI+", which is not too helpful. I'd rather tell the user that the selected save location is not writeable.
View 6 RepliesI have one working and displaying my data and can change it using my ListView when an item in the list is picked.Now I need to change some of the labels on the report at runtime and cant seem to do it?If i have textbox on th report I can change its text at runtime I just cant seem to do it with the label controls that show in the report as IFieldObjects
Code:
Dim myReport
myReport = New CrystalReport1
[code]....
Can I do this with the label controls or should I try and change all the bound IFieldObjects to TextBox controls?
Im trying to build a list of id's in a textbox. Which works fine in IE and Firefox but not in chrome.
The list that is created is using String.fromCharCode(20) to separate the values. (im using this as the values could be any character so I need to use non writable characters like this and 17)
What happens in Chrome is it seems to remove anything (and including) from the non writable character onwards so if I had
"432@5033"
where @ = the non writable character then it would output "423"
any ideas why chrome has this behaviour!
Applications in the .NET Framework can use the System.Console class to read characters from
and write characters to the console. Data from the console is read from the standard input stream,data to the console is written to the standard output stream, and error data to the console iswritten to the standard error output stream. These streams are automatically associated withthe console when the application starts and are presented as the In, Out, and Error properties, respectively.I am working with redirects and I am solving small problems one at a time. So far so good, but I lost track of the big picture here. Can someone please clarify something for me.
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?
[Code]...
I am using VB.NET and SQL Server 2005 for development of one software. I am getting syntax error at run type only on live system. If try to recreate it on my machine with same data I don't get that error. I fill that its .net error.
View 8 RepliesPossible Duplicate: Access Denied in SQL 2008 EXPRESS?I have create my code in order to write images in a remote sql server All the details of accessing and writing are fine until now, including the system account right now i'm in the command of:
SqlFileStream = New SqlFileStream(filePathName, fileToken, FileAccess.Write)
and when i'm trying to execute it the Server returns the error 'Access denied' I have try all the posible ( those which i know) combinations to overcome this error but nothing Please give me the best assistance you may have I've put a sniffer in my PC to lookup the packages between Server and my PC, so here what i got: the first addres is the Server address and the second is my PC address.
*"10.93.1.29","10.93.1.10","SMB","Tree Connect AndX Request, Path: DEVELOPERSQLEXPRESS "
"10.93.1.10","10.93.1.29","SMB","Tree Connect AndX Response"
"10.93.1.29","10.93.1.10","SMB","Trans2 Request, QUERY_PATH_INFO, Query File Basic Info, Path: v1RemoteDBdbo PImages
[code]....
I dare to say that this error comes from the Windows program when the SQL 2008 tries to write some DATA to the filies which creates on C:sqlRemData.....
I have a testing platform that allows data to be posted to a real time collection system. It uses the StreamWriter object to send both HTTP and XML formats, It works fine, but there is a new request to submit uploaded files. This again works fine, unless the files are over 70k (we need to test upto 3MB). If it is over 70k, the response is the content-length too big. I have changed it so that the content-length is now set dynamically, dependant on the size of the file uploaded. However, when the StreamWriter.Close() runs, the execption The request was aborted: The request was canceled. is generated, with the InnerException Cannot close stream until all bytes are written.
From what I have found on the web, the solution is use StreamWriter.Flush(), but this code is already in place.
[Code]...
I am using VB.Net 2008 Express and trying to build a favorites list for a webbrowser I am working on.I get an invalid parameter error on the line that reads favicon = image.FromStream(stream).[code]the urls are stored in an array after they are taken from an xml file.I checked the url that was being used when the error occurs and it seems fine. I can even navigate to it in IE.The error I get is that "stream" is an invalid parameter, at least that is where it points to.It also shows that stream is a type System.NET.ConnectStream.Stream was originally set to System.IO.Stream.I don't know if this is a problem but it processes several urls before it gets to this one.I am wondering if this may be a permissions issue and the site is blocking the WebRequest or if it is something else.
View 12 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
[code]....
How can I write the resulted stream to be sure I can read it again later?
Im making a desktop player for a online web radio, and for the program I wanna make it show all the stream info. Like the stream name, and such. However I dont know how to do this? I looked everywhere
The server url is setup like this "[URL]" And it has all the stream info and that there. So is there a way I can get the info from there onto like say a label? Live updates btw.
I 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 RepliesI've got an app where the user uploads an image and the app resizes the image three different ways based on different variables. They all use the same image. I can't check to see if it's done using the image so I wondered if there was a way to check to see if the file is writable. A small loop that exits once it becomes writable (or "deleteable"). Working out of VB.NET.
View 1 RepliesI notice there is no public method for automatically overwriting duplicate files while also showing the file copy dialog (you have to choose one or the other).
Is there a common way to do both? Or am I just going to have to manually set up a ProgressBar with the "over-writable" overload of CopyFile?
Public Sub imageload(ByVal index As Integer, ByRef imagedescription() As String)
Dim da As New OleDbDataAdapter("Select Foto From Images where Photoindex = " & index & ";", Form1.baglanti)
Dim dt As New DataTable
Dim ms As New MemoryStream
[code]....
i was take "Parameter is not valid." error pff where is my mistake?
I'm loading blobs out of a database as a byte array and I put them in a memory stream so that I can load them into an xmldocument for parsing.However there are blobs that have multiple root nodes, this causes the parser to blow up.My solution is to just make a new root node that encompasses the whole blob. I can add onto the end just fine with a streamwriter however I can't figure out how to add onto the beginning.How can I prepend to a stream?
Update:I was having too much trouble getting this to work. The "XML" I was extracting was not proper XML and I kept on having to add more and more regexes to remove bad XML before the XmlDocument Load. I ended up using the HtmlAgilityPack to parse out my valid sections of XML and I put those inside their own xml documents.
I'm writing a VB.net application (but you can answer in C# if you want, no problem) that uses a 3rd party .NET library. In particular, one method in this library takes an IO.Stream as input (among other things) and writes the results of its processing to said stream. My problem is that the method CLOSES the stream after writing to it, so I can't read back the data that it wrote in it!To be more specific: it works, of course, if the stream is a FIeStream , since it writes the data on disk, but what if I want to read the data directly to memory? I tried using a MemoryStream, but as I said, when the method returns the stream is already closed, and I can't read back anything from it.
Imports System.IO
Public Class CloseHijackedMemoryStream
Inherits MemoryStream
[code]...
Is there any way to play MP3 directly from a memory stream (without any temp. files) using VB.NET or C#? or play from SQLCe database?
View 2 RepliesHow can I get html elements from a stream?
This is a part of a code that get me the stream[code]....
I am trying to get html element from a stream
this is the stream:
Dim request As WebRequest = HttpWebRequest.Create("http:www.mysite.com/")
Dim response As WebResponse = request.GetResponse()
Dim stream As Stream = response.GetResponseStream()
How can I get the html elements from it? (I DO NOT WANT TO USE WEBBROWSER CONTROL)
Then I will do something like...
For Each element As HtmlElement In XXXXXXXX
ListBox1.Items.Add(element.GetAttribute("href"))
Next
How can i get my key's value using a stream reader [code]
View 3 Repliesabout the id3 tags.can be possible to extend the stream from 128 to 256.some parts of the title is missing
View 5 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>
[code]....
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'm trying to read data from some local XML files and process data from them using VB.net.
The format is:
<?xml version='1.0' standalone='yes' ?>
<DataFeed>
[code].....
I want to be able to go open URL in wmp and put in http://mycomputer:8090 and have it play a media file ... like it does if i host the media file on a web site...sofar i have:
Private Sub HTTPStreamer(ByVal Reciever As IO.Stream)
System.Threading.Thread.Sleep(1000)
Dim listener As New System.Net.Sockets.TcpListener("localhost", 8090)
[code].....
I have to develop an application where I have to stream my webcam over lan. I have a server where my webcam will be connected and when requested I have to send my webcam over lan. i need to view the server webcam from another network pc.
View 4 RepliesI want to stream video from a simple webcam over LAN for object detection purpose. Is it a good idea to grab frames and send them continuously over network with NetworkStream.Write()?
I did this but usually on client side i lost half of image data and I got noise, I don't know what is wrong. I'm looking for a fix or a better idea.
I put the client and server source codes here, first run the client and click "START LISTENING" then run server and click "Send pic".
[URL]