I m using proxy in httpwebrequest
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But i m unable to check any outgoing connection from my application in fiddler how i can check what request my application sent to server if i m using proxy
I'd like to set the proxy for a web request. However, when I say, for example, request.proxy = "x.x.x.x:xxxxx", it gives me the error "String cannot be converted to webproxy". How can I get around this and actually set the proxy?
View 2 RepliesHow do I check if httpwebrequest is doing what it needs to do?
Since theres no webbrowser involved your kind of left in the dark and cant actually see if what you programmed worked.
Is there a way I could block connections to an IP address (Incomming and Outgoing) in visual basic 2008? I have a different method, using the windows hosts file. I could make it redirect, but on the host file, could I make it launch a certain application when it blocks an IP. Like, launch a file called blocked.html that says "Webpage blocked" on it? and if u get this far, how can I see when an app attempts to connect to the internet. Like on bit defender firewall, say aim6.exe trys to connect to a server, how could i warn the user of this???? (Maybe using winsock)
View 1 RepliesI have took a little research and tried to find the methods that allows me to connect to proxy server using with httpwebrequest, but all of those I have found are only doing to check out the server for whether if the proxy are active or deactivate. Please can one of you post the source that I am looking for which it would allows me to connect to the proxy using with the httpwebrequest??
View 8 RepliesI'm using the following code to set the proxy on an HTTPWebRequest:
Dim proxy As New WebProxy("HOST:PORT")
...Then...
' Goto the final URL
request = CType(WebRequest.Create("[URL]"), HttpWebRequest)
request.Proxy = curProxy
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Now I put in a valid Proxy, don't run into any problems applying it, but IPChicken will always return my IP address, not that of the proxy.
I am connecting to a data stream that pushes data continuously and when I tried to set up a network stream I just could not connect and kept getting the 'not found' error. I used the httpwebrequest with webrequest.keepalive = true and started to consume the data by reading into a buffer and then appending to a stringbuilder. Once the stringbuilder reaches max size I flush it to a text file. The problem is that I get disconnected from the data stream because I am not reading the data fast enough. I need to keep the connection open and read the data while ensuring data gets stored in text files. If I use method "CONNECT" it does not connect to the stream.
While (True)
webrequest = DirectCast(Net.WebRequest.Create(url), HttpWebRequest)
webrequest.Credentials = New System.Net.NetworkCredential(username, password)
webrequest.Method = "GET"
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should I increase the buffer size and if so what is the max? that would mean I can read more data at a time and keep up with incoming push. Disparate here.
ACtually also I noticed that it gets stuck on this line
numbytesread = responseStream.Read(bufferread, 0, BUFFER_SIZE)
and then eventually I get disconnected.
I am connecting to a data stream that pushes data continuously and when I tried to set up a network stream I just could not connect and kept getting the 'not found' error. I used the httpwebrequest with webrequest.keepalive = true and started to consume the data by reading into a buffer and then appending to a stringbuilder. Once the stringbuilder reaches max size I flush it to a text file. The problem is that I get disconnected from the data stream because I am not reading the data fast enough. I need to keep the connection open and read the data while ensuring data gets stored in text files.If I use method "CONNECT" it does not connect to the stream.[code]
View 1 Repliesi have just started learning about httpwebrequest and response to open webpages and get/post info. Anyways i have a working project that connects to a webbrowsewr useing a proxy but this does not workj for httpwebrequest. Im guessing its totally different for httpwebrequest but i have no idea how to work this :/
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I'm having a problem with some users, my vb tools always check at the splash screen a response from a server with a simple:
Dim MyResult as string = oWebclient.DownloadString("www.mydomain.com/page.php")
This actually works for most users but in some clients the firewalls I think they block this call or bypass or something like that, I found that after telling the user to turn off the firewall everything works ok, now I have some users that according to them they don't have a firewall or they already disable and still they have the problem.
You can see from the image the error message they receive, so my question is do you know any kind of free tool that I can send to the user to maybe log what program or whatever is blocking the program to connect?
I need to create a small report to be send automaticliy from VB.NET Windows application. I have wrote below code which is working on my private PC, and with Gmail settings, such as username + password + smtp.gmail.com, etc...But with, my work informations, like my proxy ID + proxy password + company smptserver + port 25, does not working .
Imports System.Net.Mail
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Mail As New MailMessage
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here is also error while try to execute code from program.
<Visual Studio 2008(VB.Net) + SQL server 2005>
I have an application for HR and I am trying to give feedback to users on login window wheather it is connected network and database.
how do i check for sql connection status constantly. Timer?
View 4 Repliesif i go to sql server configuration manager and shutdown the SQL server, the server will be down.
How do i detect for those changes using vb.
Public Sub CheckConnection()
Dim con As New SqlConnection
Dim objCmd As New SqlCommand
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I cant make those work because the connection opens and close. WHat i want is to check if the server is alive or dead.
I have created a httpwebrequest connection to a streaming API after trying a tTCPClient which just never ended up working. My concern is whether my code is correct and that I am actually reading in new data and that the connection is maintained. Initially I had been reading into a buffer and just loaded everything into a file after max size, but figured it would be simpler to read a line, since each entry was being sent delimited by line feeds.
rStream = webrequest.GetResponse().GetResponseStream
rStream = New GZipStream(rStream, CompressionMode.Decompress)
If rStream.CanRead then
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It looks like I am continuously reading and not sure if I am reading redundant data here. Also another question is that if I were to use a thread to appendToFile, would that maintain the connection to the stream?
I have a script returns a string:
[URL]
PHP script:
$data = $_GET['q'];
$query = "SELECT * FROM `table` WHERE ID = '$data'";
$result = mysql_query($query);
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I have a simple scraper. It works on some websites, but on some there is this Error:
Quote:
IOException was unhandled Unable to read data from the transport connection: The connection was closed
It is occuring at "Dim htmlresults As String = Urlcontents.ReadToEnd()".
'Create the HttpWebRequest object
Dim req As HttpWebRequest = WebRequest.Create(URL)
'Set the timeout to 1 second (or 1,000 milliseconds)
req.Timeout = 10000
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i have developed a little application, which send email to me, it works on direct internet / dsl , but when i run my programm on a pc where the internet access has used a proxy server for clients, my application show a error that could not find host, and failed to send email
View 2 RepliesDetails : I have the MultiModem (MT5656ZDX) . I wrote visual basic application for making the call using 'MakeCallAsynch(txtPhoneNumber.Text)' function. Also i have the callback event handler for get the line status and write the log. But my tapi call is not going the status except DAILING,PROCEDING,CONNECTED,DISCONNECTED and IDLE. Its not showing the line busy, phone swithed off status. Please guide me regarding this.
My event handler
Friend Sub LineProcHandler(ByVal hDevice As Long, _
ByVal dwMsg As Long, _
ByVal dwParam1 As Long, _
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I am working on my project to connect to a site. As I have created a boolean to check in the mysql database whether if the username and password is true or false.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Textbox1.Text = Nothing Then
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I have the MultiModem (MT5656ZDX) . I wrote visual basic application for making the call using 'MakeCallAsynch(txtPhoneNumber.Text)' function. Also i have the callback event handler for get the line status and write the log. But my tapi call is not going the status except DAILING,PROCEDING,CONNECTED,DISCONNECTED and IDLE.
Its not showing the line busy, phone swithed off status. Please guide me regarding this.
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So i have a listbox that i have there for a list of proxies. I have 4 buttons pertaining to it. they are find, load, save and check
I have the first 3 finished and working but i haven't found anything useful pertaining to checking the proxies, the only one that i found took like 6 seconds per proxy so it took a lot of time for a decent sized list.
So how could i make it that on the press of that button, it checks all of the proxies in the listbox and it deletes the slow ones and the ones that flat out do not work. and does this at a decent pace(so it would probably be multi threaded)
and since i can not figure this out i have no code pertaining to this except for the sub for the button click i do not feel there is a need to post code
I'm new to WebRequest authentication and have been researching how to authenticate w/ a couple websites to pull some excel data from them. Couple things I'm confused about is
a.) how to properly read a log from Fiddler (using this to pick up get/post data from the website authentication)
b.) how do use the data from Fiddler to program the VB.NET WebRequest properly.
I've been able to authenticate w/ websites that use simple authentication HTTPS, but any site that does any redirects/REST/cookie auth I'm lost.
check about 30 links simultaneously using HttpWebRequest?
View 1 RepliesHow can i check that a user has a proxy enabled in their internet settings?
View 1 RepliesHow to make a check proxy function? ive made a change proxy function but i dunno how to check it.
View 3 RepliesI found similar forum thread [URL], but he don't have answers. How I can conncect | send | recive data using tcp connection with specific internet service (not web).
View 1 RepliesWhat I have is on my form there are several text boxes. These text boxes are for user input and attached to each text box is a Private Sub txtBox1_KeyPress function. In that function I have some validation code to check that the user is inputing only what I want them to. And if it doesnt it will pop up a message box telling them so, then it is supposed to clear the text box so the user can try again. But no matter what I try, the text box does not clear it still keeps the last character typed (the invalid one).
Here is the code for one of the text boxes.
Private Sub txtLanIp_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtLanIp.KeyPress
Dim strEmpty As String = ""
If Char.IsDigit(e.KeyChar) = True Or Char.IsPunctuation(e.KeyChar) = True Or Char.IsControl(e.KeyChar) = True Then
'do nothing
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The commented methods at the bottom are some of the other things ive tried to make this work. The txtLanIp.text.clear() is what ive tried from the beginning. I have also tried setting the text to "", I even created an empty string and set the .Text value to it but no matter what it wont remove that character. I have also tried various trim(), len(), Select() functions, most either give me an 'index out of range error', a 'length cannot be less than zero' error or a general ExceptionOutOfBounds error. I am just tearing my hair out as to why the simple way doesnt work, there is no logical reason why and it gives no error it just doesn't clear the box.
I have also tried moving the validation to a _LostFocus but e.KeyChar isnt a valid method or property for that declaration, which doesn't surprise me but I wanted to try everything.I dont see how it would matter in this case but I am running Windows XP Pro SP3, though I also see the same behavior in Windows 7 64 bit ultimate sp1 and windows 7 64 bit pro.
I have a solution with two projects. The main project connects to the second project via a reference, and the reference path is local to my machine. It looks like it references the .exe file.So when I publish the main project (ClickOnce), i get the following error:
Application validation did not succeed. Unable to continue.In the log file, under Error Details, it says
System.Deployment.Application.InvalidDeploymentException (RefDefValidation)
- Reference in the manifest does not match the identity of the download assembly Project2.exe
- Source: System.Deployment
How can I include this second project? Should I publish it, then reference the published files? What do i reference? The .application file?Is there a way to just include this second project, so when I do publish the main project, the second one just goes along with it?
I am developing a chat application using online connection to a mysql databbase. But i am facing a problem. After 10 minutes, MySQL closes all the chat connections because of the 600 seconds timeout (has been set by the host service i am using). I don't understand why is that happening cause every piece of my code which needs data from the database opens and closes the connection (i mean that it dosn't maintain the connection after the query's execution). If i .close() and .dispose() the connection, it still appears in mysql at sleep mode (it terminates only if i exit the program).
Dim MySQLCon as New MySQLConnection
Dim MySQLCom as New MySQLCom
Dim counter as Short
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