VS 2008 Difference Between HttpWebRequest And WebClient?
Apr 29, 2010What is the difference between those 2 classes in System.Net?How can I login to website using one of these classes, and how can I post to a forum?
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VS 2008 - Setting Proxy On HTTPWebRequest / WebClient
Nov 30, 2009I'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
[Code] .....
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.
VS 2008 HttpWebRequest/WebClient To Fill Forms?
Oct 28, 2010I'm looking for a way to fill in various website details using a HttpWebRequest/WebClient. I can manage it quite easily using an invisible WebBrowser control, by manipulating the HtmlDocument, but for some reason I just can't quite grasp the way I would do it with a HttpWebRequest/WebClient. I've heard both of these can potentially submit info using the UploadData functionality etc, but I'm missing specificsI've done a lot of searching on google just for a basic example to get me started, but the only one that LOOKED informative was written entirely in German.Take, for example, this website. Let's just say I wanted to automate filling in my username and password into their respective boxes and then pressing the "submit" button. How would I start going about this, and how do I get the resulting page? (I'm assuming cookies that the page creates will keep your next webrequest going)
View 9 RepliesDifferences Between HttpWebRequest And WebClient?
Jun 9, 2010differences between HttpWebRequest and WebClient and why I should use either.
View 1 RepliesRetrieve Raw XML From URL Then WebClient Or HttpWebRequest?
May 26, 2010I am working on a Geocoding app where I put the address in the URL and retreive the XML. I need the complete XML response for this project. Is there any other class for downloading the XML from a website that may be faster than using WebClient or HttpWebRequest? Can the XMLReader be used to get the full XML without string manipulation and would that be faster and/or more efficient?
View 2 RepliesGrab Html Tag For Webclient And Httpwebrequest?
Sep 26, 2010I have took a little research for the method to grab the html tag and input the textbox strings into the html page by using system.net.webclient and httpwebrequest, but I couldn't find the answer.o get the the method for system.net.webclient and httpwebrequest to grab the html page and input the strings into the php form?
View 4 RepliesPOST Data And Upload File Using Webclient Or HttpWebRequest
Jul 24, 2009I have the following HTML Form That I'm trying to automate:
<html>
<body>
<!-- The data encoding type, enctype, MUST be specified as below -->
<form enctype="multipart/form-data"
[Code]....
Html - Httpwebrequest - Obtain Form Element Id's / Names During An Httpwebrequest?
Dec 28, 2011What 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?
VB 2008 - Possible To Get Events Of HTTPWebRequest?
Mar 24, 2011Is it possible to get events of httpwebrequest? For example when I make a post request, then in the events procedure I should be getting something like this in the following order say
connecting to website
connected to website
posting request
request posted
waiting for response
receiving response
response received
disconnecting
disconnected
Or how to I implement something like this with the webrequest?
VS 2008 - Httpwebrequest - Webresponse
Feb 20, 2010Im looking for tutorials on httpwebrequest and httpwebresponse. Im actually using chilkatsoft http which makes it quite easier.
View 1 RepliesVS 2008 Cannot Use Httpwebrequest With Listbox
Jan 4, 2011I am facing a strange problem with listbox. I need to scrab whois information. I used the following code to get source code of the whois query. It works fine if I use a textbox. But I need to use this for multiple url and therefore need to use lixtbox to loop through url list. Unfortunately when I use listbox1.selecteditem or listbox1.text it does not work. But this same code works with webbrowser.
[Code]...
VS 2008 Httpwebrequest & Proxies?
May 4, 2010Im programming something with httpwebrequest/response. I'd like to incorporate proxies with that program. I was just wondering whats a good way to verify if proxies are working or not?
View 1 RepliesVS 2008 Using HttpWebRequest (GET And POST) Together?
Oct 17, 2010[code].....
View 3 RepliesVS 2008 Using HTTPWebRequest With Cookies?
Mar 21, 2010how to use httpwebrequest?
1.Navigate to website with cookies
2.use this cookies and website referrer to download file with direct url [URL]
[2008] Javascript & HTTPWebRequest?
Jan 14, 2009i am trying to allow my users to create a gmail account through my application. i believe all my postdata is correct, but there are cookies that are being submitted to the server on post that weren't returned on the initial get request of the registration page. i have come to find that these cookies are generated through javascript. here is the portion of the source code of the registration page that contains the script that generates the cookies:
[Code]...
VS 2008 : Proxy In A WebClient?
Jun 4, 2009I am making a little program witch get information from the web. Now i got some complains from people who are behind proxys. So my question is: Is there a way to get the proxy settings from IE, and let the WebClient use them?
View 1 RepliesVS 2008 WebClient And Loop?
May 8, 2009I need help to optimize this
For x As Integer = 1 To Me.dtsCustomers.Tables(0).Rows.Count Try
'I SEND VALUES: NAME CUSTOMER AND HIS AMOUNT
Dim client As WebClient = New WebClient<br/>
client.Headers.Add("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)")
client.QueryString.Add("customer", Me.dtsCustomers.Tables(0).Rows (x).item("customer"))
client.QueryString.Add("amount", Me.dtsCustomers.Tables(0).Rows(x).item("amount"))
[Code]...
VS 2008 Authenticating HttpWebRequest To Login
Jan 5, 2011Today I was just wondering how I would go about authenticating a HttpWebRequest to a certain site. I'm trying to get the Response from an order page to parse the HTML from it, however it always redirects to the login page when I try, even after assigning the credentials.
[Code]...
VS 2008 HTTPWebREquest - Error (404) Not Found
Feb 19, 2010I have a crawling program that fetches urls to parse the html and came across an unusual error since I started this. For a specific set of urls from a site when fetching using HTTPWebRequest and HTTPWebResponse I get the error The remote server returned an error: (404) Not Found This is unusual since it works when pasting it in my browser. Not sure if code is needed to posted but let me know if so.
View 1 RepliesVS 2008 HttpWebRequest Updating Fails
Jul 14, 2010I have this code in a timer:
[Code]...
VS 2008 HttpWebRequest, 403, Browser- Working?
Jul 14, 2010i have a weird problem: when i use httpwebrequest to download a string from a site, it says 403 forbidden, but when i try to acces the same string from any browser, everything goes normalcode to download string:
Function ReturnCommand()
Dim cmdreq As HttpWebRequest
cmdreq = WebRequest.Create(Host & "/command.txt")
[code].....
VS 2008 Submit Form Using HttpWebRequest
Oct 27, 2009The below code allows me to login to a site using HttpWebRequest however I can't login to the site [URL] (which is the one I want to login to). At the bottom of the code I write the source to a file and upon opening it simply shows the login page.
After looking at the source I believe the issue is caused by the form calling a javascript funciton to actually submit the form when the 'Login' button is clicked. Has anyone had this type of situation in the past and if so what was the solution to get the form to submit?
[Code]...
VS 2008 Why Won't This Httpwebrequest Post Not Work
Jan 26, 2012i have a site that i would like to login using httpwebrequest.I have this code and added the correct part to post
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim postData As String = "u_name=" & TextBox1.Text & "&p_word=" & TextBox2.Text & "&login=Login"
Dim tempCookies As New CookieContainer
Dim encoding As New UTF8Encoding
[code].....
If i enter the wrong login info it says bad login, but if i add the correct login info, it does not login, all it does is displays the login page again?
VS 2008 - WebClient DownloadCompleted Exception
Oct 10, 2010I have not much experience with the WebClient.. How can I catch this exception of e.Result DownloadDataCompletedEventArgs; "The remote name could not be resolved", which occurs after some time when internet connection is not working..? [URL]
The calling method:
Private Sub DoDownload()
Dim wc As New WebClient
Try
wc.DownloadDataAsync(New System.Uri(Me.webImageLink))
AddHandler wc.DownloadDataCompleted, AddressOf OnDownloadCompleted
Catch ex As Exception
Debug.Print(ex)
End Try
End Sub
VS 2008 WebClient Download With Progress Bar?
Dec 3, 2009How would I make the Progress Bars Value = The Percentage of a file being downloaded using a Webclient?
View 2 RepliesVS 2008 WebClient How To Set Order Headers Are Sent
Aug 12, 2009i'm using WebClient in VB.NET to make requests. I add the headers using WebClient.Headers.Add() in the order I want the headers sent. However when I packet sniff the requests it makes I can see that the headers are sent in totally the wrong order. Does anyone know if there's a way of setting the order the headers are sent?
View 5 RepliesVS 2008 WebClient.DownloadString 403 Error?
Mar 8, 2010I've been testing using WebClient.DownloadString and sometimes I encounter an error: "The remote server returned an error: (403) Forbidden". It is based upon which url I use. For instance, this works:
Dim wc As New Net.WebClientDim strResult As String = String.Empty
Try
strResult = wc.DownloadString("http:/ Obama pages always fails.
[code].....
VS 2008 - HTTPWebRequest / Response Send XML Data
Jul 29, 2009This is the short instruction:
1) Make a single HTTP-POST request to the following URL in XML format.
[URL]={password}&user={username}
2) The xml form field that is posted should be named "createorder".
I don't get the last part with naming the xml form field. What the xml form field means (stands for) in this context?
VS 2008 - Setting User Agent With HTTPWebRequest
Apr 17, 2010I am using GET and POST webrequests and am trying to set the User-Agent.
Public Sub getpost(ByVal URL As String, ByVal method As String, ByVal postdata As String)
Dim request As WebRequest = WebRequest.Create(URL)
If method = "POST" Then
request.Method = "POST"
Dim byteArray As Byte() = Encoding.UTF8.GetBytes(postdata)
[Code] .....
The above is what I tried to set the user-agent but it returns an error saying that I'm not properly setting it.
VS 2008 : Webpage Login+scraping With HttpWebRequest?
Oct 20, 2011I want to download a webpage by httpWebRequest.
Web page Address >> http://www.stockbangladesh.com/resou...l=18455&inv=60
from a free website
[URL]
But that page requires login first. my user name : babul37 and pass : mhbb7337 How can I download that page by httpWebRequest?