VS 2008 WebRequest Stream Reader Timeouts?
Jan 18, 2011
I have been using the following Stream Reader code for over a year now to pull information from 3 websites w/ no issues. Recently my users are getting massive amounts of "Timeout" errors. I have opened a ticket w/ the IT department but they have not found any issues (we are experiencing off/on issues w/ our web traffic speeds in our department). Per the code I have the timeout set to 20 seconds but the Timeout error occurs in only a few seconds from the System.Net.WebException.
Imports System.Text.RegularExpressions
Imports System.Net
Imports System.IO
[code]....
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Apr 20, 2011
The current version of my application was using the WebClient object to download files from the internet and all was working well until some users reported that they were getting server timeouts. I looked into this issue and decided to move to the WebRequest object as it allows me to specify a Timeout value. The problem is, when using it synchronously, if I specify a timeout value of -1, I am worried that in the event of some weird server anamoly, my application would hang as it would be waiting for a response that isn't coming. So then I thought of using the WebRequest ansynchronously.
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Apr 20, 2009
im trying to use a 2 combo boxes each with a list of 7 cities these need to link up with numbers in a stream reader to give a total distance.[code]
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Feb 11, 2010
I have a text file that has different controls for text boxes. This text file controls the BackColor, BorderStyle, Font-Bold, Font-Size, Height, Width, ReadOnly, and TextMode a sample is below:
*****Detail Header
txtDetailHeaderBackColor = Black
txtDetailHeaderBorderStyle = None
txtDetailHeaderFont-Bold = False
[Code]....
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Jul 7, 2010
Alright so I have a webrequest on my program and it requests a login page, and I use the streamreader to read the webrequest and I set a textbox text as the text that I get from the site after the webrequest. The text I get is something like this:{"Code":null,"ConfirmationId ": 3023,"Description":null,"MessageType":"Success")I am wondering how do I get it to only get the text confirmation id (in this example it's 3023) and not the whole page.
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Sep 24, 2008
how would I accomplish saving a large piece of data, using the Stream Reader for the Line-by-Line, while keeping the carriage return line feeds in there?
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Jun 18, 2012
How can i get my key's value using a stream reader [code]
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Apr 11, 2010
I have a stream reader going into an array with a .split on it:
strNstring = sr.ReadToEnd.Split(New [Char]() {" "c}, StringSplitOptions.RemoveEmptyEntries)
If the file is set up like:
the
dog ran and jumped
in
the grassy
[code]....
Is there any way to set the split to fix this and just have them come in correctly?
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Apr 30, 2009
The bigger problem is that I can't seem to get everything involving using stream writer and reader working. If I start of with a .txt file already correctly formatted then I can display it in the list box. But adding data during run time is not proving successful.
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Dec 30, 2008
I've set up a stream reader to get data from a serial file, functionality for that is already set up.
My problem is that the program seems to be missing out every other line of code in the file, which kinda defeats the point of a serial file. [code]...
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Feb 27, 2009
im trying to populate a list box from a text file using the System.IO.StreamReader class
and my code blows up right here:[code...]
The program dies at lstFilePreview.Items.Insert(Counter, ObjReader.Readline.ToString)and it gives me the "Object reference not set to an instance of an object." error.
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May 16, 2009
Radio button 2 beacuse there are 3 and you have to pick one (The right one) to advance on to the next form.
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Jul 2, 2009
Is there a method of using the stream reader to read webfiles?
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Jun 24, 2010
I've got an application that reads a XML file via a stream reader. The problem is I can't edit my XML file and save it when others are using the application that is using the XML file at the time. how can i get around this?
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Apr 30, 2012
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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Oct 19, 2010
From 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)
{
[code]....
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Feb 1, 2009
I am downloading page data using the stream reader using readline.I want to concatenate each line into one long string for parsing The below line of code is not working: datajoined =dataline.Insert(datajoined.Length - 1, dataline.Length - 1)My inevitable goal here is to track stream data with a progress bar. But first I must learn to dload page data in chunks.
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Apr 28, 2011
I'm trying to setup a simple app that reads a file and then writes the contents to another file using OpenFileDialog and SaveFileDialog. Looking at the debbugger it looks like it's reading fine, I can see the data I want written. Towards the end of my code I get the following error message:"Illegal characters in path". I've researched this error. I'm not using any illegal characters such as /\? etc and the pathname contains all alpha characters. I'm pulling the test file from the C drive and trying to save it there as well.
Path: C:\Test.csv
My code:
Private Sub btnAppendData_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAppendData.Click
Dim Result As DialogResult
Dim FileContents As String
[Code] .....
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Jan 27, 2009
I am trying to make my application read data from a file. Then save the data back. However I keep getting an error which says the file is still open so cannot be edited. I also read that there is an issue with the streamreader and streamwriter do not close the program straight away. I was wondering if anyone had a way around this or any alternative ideas. Heres my code so far!
[Code]...
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Nov 19, 2011
Trying to fill listboxes from a .txt file, but I only get 1 line. How do I loop the stream reader until the Field(0) changes. My txt file looks like this: [code] The number goes into a combobox, the name into a label, and the rest into listboxes, so I I need all the Gross Pay for person 100 in a list box.I have a module that reads the file into an array PayRolls (), And so far this is my code for the combobox. [code]
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Apr 28, 2009
I am new to Visual Basics and I am using Visual Basic 2008 express. I have been using video tutorial on line to learn VB and they are great in explaining what is happening the code vs. just looking at code. I think from what little I can find I would be using StreamWriter WriteLine and StreamReader readLine .I am using a couple of forms. I am looking for simple basic code to use a form as a way of modifying timer intervals and store the values in a single text file on separate lines.
Description:
Form1: will contain the main code that will run. It will contain some timers. I want the timers to look in a text file for their intervals. Each timer would be on a different line.
Example:
Timer1 interval would be located on line 3
Timer2 interval would be located on line 6
Timer3 interval would be located on line 20
Form2: will contain 3 textboxes. This is where when I load form2 I will also read the same values from the text file to preload the text boxes. I will now be able to change the timer intervals as needed and press a button to update the text file. The update button will also reload the new timer settings on Form1. This is very similar to how a CNC Machine works with Parameter settings. This can be useful for storing many different settings for a form that a user can modify and be stored and reloaded next time the program runs.
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Mar 8, 2012
I'm using stream reader to read some text(txt format) n show in textbox1. I want stop at the second last line to get the string.Below is my code:
path="c:dic.txt"Dim reader As New StreamReader(path)Do While reader.?? //how to instruct to stop when read until second last line,because i don't know how many lines in the text file??
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Feb 19, 2009
I'm running some unit tests for a large VB.Net application I help maintain and am running into problems with tests timing out. The test run is set up so that there's no timeout limit on the overall test run, but a limit of 2 minutes per individual test. However, a couple of the tests take a lot longer than this to run, so we tried adding the timeout attribute to the test's declaration, i.e
<TestMethod(), Timeout(15 * 60 * 1000)> Public Sub DoSomething()
for a 15 minute timeout. However, the 2 minute timeout set in the test run properties seems to be taking precedence, even though it says that the timeout attribute should override it.
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Mar 10, 2010
Is there anyway to take a static stream reader, and switch it to another text file based on the user changing the file?
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Feb 12, 2012
Currently I am saving data from my applications by saving a text file via a stream reader as a string. I have come to a problem. In my current application, I have an array of the following structure:
[Code]...
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Jul 16, 2010
Does anyone at least have some related links on fetch requests and scraping?I am trying to implement the webrequest get and post methods. I am accessing a secure site that requires login authentication and was told that instead of sending a login request all the time; login to the site and capture the cookie and use this to send it in the header to get results from the page. In other words let us use google for example. Lets say google required u to login before searching for something. Now I login through my browser and leave the site logged in. Now I send a httwebrequest from my program that includes the cookie authentication details in the request header and get results for say ?param=sports. Now when I increment the page number like &page=3, I am still only getting page 1 results.[code]
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Mar 24, 2010
I am posting data to my website, i have a Dim request As WebRequest = urlgoeshere After I post, it redirects to another page. How do I pull that url of the redirect?
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May 21, 2010
Can someone give me a example on how to use WebRequest to submit a form?
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May 3, 2011
Public Function ScreenScrapeHtml(ByVal url As String) As String
Dim objRequest As WebRequest = System.Net.HttpWebRequest.Create(url)
objRequest.Timeout = 1000 * 30
[code].....
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Sep 26, 2011
Why does this code works for the first few then gives timeout on all the rest ? VB removed, resolved like when i run it with say 50 threads, the first few work fine but then the rest after that all time out, i have tryed moving the ones that work to the bottom of the list but they still timeout after the first few are done.
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