I'm new to VB and am using 2008 VB Express edition. I'm trying to access a webpage's html using HttpWebRequest and that page requires cookies or it sends me to a login page. I found code examples around the web and have written the following code:
[Code]...
how to use httpwebrequest?
1.Navigate to website with cookies
2.use this cookies and website referrer to download file with direct url [URL]
I think there is a problem with cookiecontainer (httpwebrequest)there are 2 main functions in my class, first getting a new form (a hidden token in form tag), and it should set the cookies (which not set) and then second function (doLogin) should login the form. why cookie is not set...?
View 2 RepliesI'm trying to log into a website using httpwebrequest but website tells me that cookies are not enabled. I do have this,
Dim cookieCont As CookieContainer = New CookieContainer
Dim Request As HttpWebRequest = WebRequest.Create(URL)
Request.CookieContainer = cookieCont
I'm writing a program for my sister for a game which she plays online. It uses a WebBrowser control, and HttpWebRequest as well.The basic function is it searches through the website, we'll say the url is http://hersite.com/pet/* (don't follow the link lol it's just an example) where * is a number and this is how it searches.I use a for loop to cycle the numbers from a specified start to end, and use an httpwebrequest to fetch the html code, then process the string using InStr and .split()When I access the webpage using the WebRequest.Navigate, it takes me to the page correctly. However, if I fetch the source through the HttpWebRequest, it fetches the source of the login page, which the website redircts you to if you are not logged in.Is there a way to transfer the cookies from the WebBrowser to my HttpWebRequest?
Some examples:Get the HTML somewhere in here I need to add the cookie to the http requester, don't I?
Function GetHTML(ByVal strPage As String) As String
Dim strReply As String = "NULL"
Try
Dim objHttpRequest As System.Net.HttpWebRequest
[code].....
My knowledge of VB.Net is quite limited and I'm trying to jump in at the deep end, I'm trying to log in to a website (a game in which I play) that requires a username and password, they must be submitted used the POST method and then I need to be able to view the source of the page to obtain further useful data.
This is what I have at the moment and it isn't working for me.
Function postRequest()
Dim s As String = ""
Dim username As String = txtUserName.Text
[Code].....
1) How do I use cookies obtained from login to do subsequent requests? e.g. Login to a forum, then use the cookie obtained from login to access User CP and change settings.
2) How do I parse HTML via HttpWebRequest? Does mshtml work with HttpWebRequest? If so, how do I work with it? I thought of downloading the source code of the page I'm requesting into a richtextbox and do my stuff from there, but it sounds kinda impractical to me since I have to use regex to get the innertext of stuff (or not?).
I'm trying to send an image over TCP... I believe I'm sending the image correctly, but how do I receive the image?
Here's my code in sending the image (To shorten the code, I didn't show how the image is created).
Code:
Dim tmpImage As System.Drawing.Bitmap
'client is the connected Net.Sockets.TcpClient
tmpImage.Save(client.GetStream(), System.Drawing.Imaging.ImageFormat.Bmp)
[Code]......
There are mail sending program available in the market that can send mail directly. I am trying to create such a program in visual basic 2005 for a long time. Recently, i learned about MX Query. And my concept is like below:
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I'm in a programming class, and I need to make a game. Is there an easy way I can send messages, like "w" or "down", between 2 computers so I can have a multiplayer game?
View 1 RepliesI was woundering if it is possible to send messages over network to a lan computer . if it is possible does anyone have the code to make this possible
View 2 Repliesi want ask how i can send hex packet to server .i am able to connect IP and port [code] here we can see that for 3 hex 33 is used and for char "." 00 07 13 and many others are used and for its 0F used [code] it sends same Hex for each "." in packet but i want to send other values as there in original/so i want to create a byte to send from hex code/
View 2 RepliesI am writing a program for a Project in school. And so far i have gotten remote execution of commands. And now i want to be able to pull The process list on one machine and send it remotly to the other. Getting the process list on the machine is no problem, but i for the life of me have no idea how to send it to the remote computer?
View 5 RepliesI need to send keystrokes using my InfraRed port on my laptop. As simple as a TV remote control. -being able to send numbers: 1 .. 2 .. and left right etc ... How to access the IrDA port?
View 1 RepliesI have an application that i need to add email to. I can send email to a gmail account with the code below. Does anyone know how to do this sending email to others such as Hotmail?I am using VB.Net 2005 professional
Dim from As String = "rickthefixer@gmail.com"
Dim toCustomer As String = "rickthefixer@gmail.com"
Dim body As String = "This is a gmail test"
[code].....
how can I send a Message String with Attached File? AFAIK, we are sending Message String via Byte Array.
View 4 RepliesIm using VB2008... Net framework 3.0. Basically I have a barcode scanner that is sending the software data...Everything is working fine if I interface the scanner as a keyboard wedge and set the scanner suffix as 'Enter'...In the software I have an event handler on keypress.down...
If keycode.Enter then
.....
.....
....
etc.
However as a RS232 interface I cant get the same result? Hyper terminal reads it perfectly. I've tried all the keypress options but it doesnt work (I assume because it's not actually a key press). when the textbox recieves the CR/LF from RS232? The scanner that does keyboard wedge interfacing is not an option as it is far too expensive for my project.
its possible to set the webbrowser cookies as same than httprequest cookies.
Private Sub lol()
Dim request As HttpWebRequest = DirectCast(WebRequest.Create("http://login.ijji.com/postLogin.nhn"), HttpWebRequest)
request.CookieContainer = cokie
[code]...
What I would like to know is how to obtain form input elements during an httpwebrequest?
[Code]...
Is it possible to obtain these input elements during an httpwebrequest without having to view the html code?
I am using VB2008 Express and am curious how to send a command via RS232 communications. The string that I need to send is 02h PON 03h. The start and end bits are 02h and 03h.
How can I convert 02h and 03h to its ascii form. In hyperterminal, I use the sequence {(hold)ALT 0 0 2} on the number pad to send the start bit.
I am using this code currently without the start and end bits
Code:
I am trying to Send an Email with an attachment (using Gmail) but I keep getting errors like "Operation Timed out" or Failure Sending Email". It was working earlier today but I found out that i needed to add Using statement because the email was having a file open that had to be deleted after it was sent but afterwards it doesn't work.
Here's what I have (Portion of it):
Private Sub SendMailOneAttachment(ByVal un As String, ByVal pass As String, Optional ByVal smtp As String = "smtp.gmail.com")
Using oAttach As Net.Mail.Attachment = New Net.Mail.Attachment((Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) & "\" & My.Computer.Name & "_" & fName & " .zip"))
Dim client As SmtpClient = New SmtpClient(smtp)
[Code] .....
The ports are correct I believe, no firewall up on my PC...
Which is better for Sending Files/Sending Images/Msg for P2P Chat?
View 1 RepliesI am tring to send e-mail used VB 2008. Below is my code. The error message I am getting is "5 Failure sending mail at System.Net.mail.client.send(MailMessage message).I have two questions. 1.) What am I doing wrong? & 2.) Is there a way the get a more description error message.
message As
New System.Net.Mail.MailMessage
Dim mySmtpsvr[code].....
On the login page I made, this is part of the code behind for the submit button.
Dim aCookie As New HttpCookie("userInfo")
aCookie.Values("user") = Me.usr.Text
aCookie.Values("last") = Now.ToString()
[Code]....
For some reason, when it gets to the last line, it throws an error:
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
I'm attempting to delete all cookies under a certain URL. How exactly would I go about completing that? For example, I want to delete all the cookies under [URL]. How would I do that?
View 4 RepliesI am using Visual Basic/Visual Studio 2011 Beta I have a series of web sites I program webbrowser1 to navigate to. It is a simple program. The problem I am having is that the websites remember me from the last visit from my cookies(?). Even if I have webbrowser1 click on the logout link, the next time I visit that site I am still logged in! I want the webbrowser to arrive at the website each time as if for the first time ever there, with no record of anything on that site that was done before.
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I would like the VB.net WebClient to remember cookies.
I have searched and tried numerous overloads classes.
I want to login to a website via POST, then POST to another page and get its contents whilst still retaining my session.
Is this possible with VB.net without using WebBrowser control ?
I tried Chilkat.HTTP and it works, but I want to use .Net libraries.
how to create cookies in vb windows application project. Please give me some hints or reference for to refer ....
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and When i check thorugh fiddler i got this error
"Your cookies seem to be disabled. Setting preferences will not work until you enable cookies in your browser."
I am trying to write VB Code that would allow me to access a users cookies from their PC. Is their any code snippits that any of
View 2 Replies