Use The Webbrowser Control To Navigate To Certain Websites And Login And Retrieve Some Data
Nov 29, 2009
I use the webbrowser control to navigate to certain websites and login and retrieve some data. For that I created a sub for each website. On the form i have a button that calls every sub when clicked. The problem is that I don't know how to pause or stop the process once started. If I quit the program it will still run in the background until all calls complete. I tried to use a thread, but that doesn't go well with the webbrowser control.
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Oct 26, 2010
I'm using a WebBrowser control in my current program in a bit of a bastardized way: I don't use it visually, I just use it because I'm more familiar with its events.
So, basically, I create a WebBrowser control and navigate to a page to login. Then, when logged in, I create a new WebBrowser control and navigate to a different page.
I've used this program for four months with no difficulty. Starting today, though, the second phase of that has been going really, really slowly. What used to take 3-5 seconds is taking 25-30 seconds. It still works eventually, it just takes a while.
Usually I would assume this was a server problem. However, navigating to the exact same URL in Firefox happens extremely quickly. Weirder still, within the program there is a user WebBrowser control -- I can copy/paste the URL the previous (not visible) WebBrowser was navigating toward into this user WebBrowser, and it goes just fine.
What in the world could be holding up this other "custom" WebBrowser? I don't even know where to begin in diagnosing this.It might be important to note that the site this is working based off recently underwent some changes -- but I can't imagine why that would affect only these "custom" WebBrowsers and not the user one in the same program.
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Feb 14, 2010
Here's the situation: I need to navigate to a list of sites and retrieve data from them; I know how to retrieve the data, but I'm unsure of the best way to navigate to each of these sites.
[Code]...
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Mar 26, 2010
I need get several values from a HTML Page on a WebBrowser Control. How can I get those values in a TextBox?
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Jul 17, 2010
Ok i want to display the favicon of the website in my favourites listbox to make it look more better, how can i get the favicon of the website and display it next to the correct item in the listbox?
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Sep 3, 2009
I would like for my program to navigate via textbox1.text with multiple lines and multiple url links inside of it. I know how to make the webbrowser1.navigate via textbox1.text with multiple lines, however I want my webbrowser to navigate to each url every 1-1.5 seconds once button1 is clicked. Yes, my webbrowser1 will navigate to the specified urls via the textbox1.text (multilines) with a button click, but I need the webbrowser1 to navigate in a order sequence from top to bottom of Textbox1.text (multiplelines) every 1 second. Here is the current code that I have to navigate via multilined textbox1.text control in order sequence:
[Code]...
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May 13, 2009
I'm using a webbrowser control to pull some information from a website. It works fine.I load the web page when the user clicks a button and then I pull the information from the site when the page completely loads. I have this bit of code in the DocumentComplete event.I am doing this for two different websites. So, my code as it is, looks something likes this:
vb.net
Private Sub btnStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnStart.Click
WebBrowser1.Navigate("http://www.website.com")
End If[code].....
If I add a second Navigate to the same WebBrowser control, and then add another Document. GetElementById line, using different variables, it doesn't work.Its obvious that it loads both sites and then it finishes. So, it never has time to finish the first load and then pull the info into the text box.Is there a way to do this? To load the first site, pull the info, load the second site, then pull the info from there?
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Nov 4, 2008
in my form load, I have the web browser control navigate to a site. What I'm trying to do is when a user clicks button1, i want the program to look through the webpage and check if there is an image source equal to a static URL that I assign. this is basically just navigating to a website & checking if a certain link exists.
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Feb 24, 2011
For the past couple of days I have been using Visual basic 2008 and learning it.Anyway, I am trying to make a login form that will login to a website with WebBrowser control.and I am noticing that the webbrowser is extremly slow, it takes him about 20 seconds to load a page while mozilla opens it in a moment, why is that?
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Oct 1, 2009
Creates a webbrowser in a background thread, then is supposed to navigate to a url and return a htmldocument, but the navigate fails for some reason
NOTE: this is part of a class where you see ME.url or me. ... me.isrunning = boolean false by default me.url = uri of location to navigate to
Public Function GetDOC(ByVal url As Uri) As HtmlDocument
If Me.IsRunning Then
Throw New Exception("Object Currently In use")
[Code]....
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Apr 5, 2010
I'm using a webbrowser control in my program and I navigate to a page that uses sessions. I need to delete them somehow and I tried to close IE and enter it again and it worked, the sessions were deleted. But I've done it manually, and I need to do it through my program, so is there a way to imitate the closing and reopening of my webbrowser control?
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Apr 5, 2010
I'm using a webbrowser control in my program and I navigate to a page that uses sessions. I need to delete them somehow and I tried to close IE and enter it again and it worked, the sessions were deleted. But I've done it manually, and I need to do it through my program, so is there a way to imitate the closing and reopening of my webbrowser control?
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Jun 26, 2011
I am using webbrowser control to automatically navigate through facebook.Nothing malicious, just an experiment of sorts.Im working on a bot that that would extract the names of all friends on my friends page, open up those pages, extract their friends names, and repeat.The end result would be a chart of who knows who. A sort of 'six degrees of separation' experiment.I have everything automated up until getting to my friends page and I am having trouble extracting the urls from my friends page. [code] Now, I figure I can extract from <div class=fsl fwb fcb">, but Im confused as to how to go about doing this. On another thread, someone said it cant be done with webbrowser control, but im new automation.
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Apr 11, 2009
How do I automate a web page (e.g. retrieve page text, login website, search, click button or hyperlink) via WebBrowser?
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Aug 24, 2008
I want to make something that can on button click navigate to a page, wait the time I specified and navigate to another page..
[CODE...]
This does not do what I thought it would do..I think that the problem is that when it sees System.Threading.Thread.Sleep(5000) everything stops for 5 secs .How can I make it go to google.com and then after 5 seconds, yahoo?
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Aug 22, 2011
I am using webbrowser control for automate login in https://www.itslb.com/tms/ website i have written code also but password input box doesnt hold any value username hold this my code like below
Dim frmform As HtmlElement = WebBrowser1.Document.Forms("aspnetForm")
frmform.All("ctl00_lnkLogin").InvokeMember("Click")
frmform.All("ctl00_txtUserName").SetAttribute("value", sUserID)
[code].....
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Feb 23, 2009
I have put together some code to login to one of my websites [code] The problem is when i display the sites source code it still shows the source of the login page, rather than the page you goto once you login
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Sep 4, 2009
I am trying to automate login and navigation to a website using the WebBrowser control. I can successfully logon to the site using the wb control but after that I can't seem to get access to the newly loaded document's elements within the same routine. I check for ReadyState Complete and IsBusy but they don't seem to be working. There don't appear to be any frames being used at all so I can't figure out why this won't work. I know that the wb control is successfully logging in because I can see the page load in the wb control. However, after the page loads I try to access the HTMLDocument for the new page (after logging in) and it is either set to Nothing or it's the previous page's HTML. I've tried putting in a Sleep to wait for the page to finish before trying to access the HTMLDocument on the new page but it still doesn't work. If I create a button on my form that accesses the HTMLDocument and click it it works fine. I can't figure out how to ensure that the entire page has finished loading within my routine. I tried putting a switch into the DocumentCompleted event but that doesn't work either.
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Mar 13, 2010
I'm working on a pretty simple project, just a WebBrowser app which is tailored for Webmail. I'm working on an OWA portion, and OWA normally doesn't allow the textfields on the Login page to be auto-filled. Is there a way I can force this? Search through the OWA login page code, find the fields, then fill in the fields with preset/saved data?
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Sep 2, 2011
I am working with vb.net to making a form that prevents the web broswer on windows internet explorer from navigating to certian pages. The code can't just work on internet explorer because I could make a program with a web browser that navigates. It has to prevent the web browser itself from navigating.
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Mar 3, 2009
I'm instantiating a WebBrowser object and programmatically clicking a button to navigate. Is there a way (property, method, or voodoo ritual) for me to check the browser after it lands on the new page to see 1) the form method that was used and 2) the post data?
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Feb 3, 2011
I am new to VB, and I am using Visual basic 2010 Express to make an application that will login and navigate a website for me. On a form, i made a button and a webbrowser, and this is the code i have so far:
Public Class Form1
Dim Automate As Boolean
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Automate = True
[Code]...
The last line of my code that nagivates to a new page after login... it executes before the login completes and the login fails. If i remove that line of code, the login works fine. So how do I navigate to further pages after the initial one, and make sure that it is fully loaded each time?
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Apr 14, 2010
I want webbrowser to visit multiple urls that I filled in List(of String). I use a for each loop to iterate over the List, but the webbrowser only show the last url ask.com. I want webbrowser to visit and display all the urls.
Dim UrlListArray As New List(Of String)
UrlListArray.Add("http://www.google.com")
UrlListArray.Add("http://www.yahoo.com")
[code]....
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Mar 7, 2009
I have just recently started using vb.net from vb6. I have written a program that retrieves certain posts from a forum. To clarify, it does this:
1) Login to forum and get SID
2) Navigate to a page (with SID) and retrieve required code.
Thats it.To retrieve the page source, im using this:
[Code]...
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Sep 15, 2010
I've been trying to write a vb program to help me login to a website! I've managed it with HtmlCollection, but the problem is that on the next page there are a few choices that need checking and it goes kind of crazy. Is there any way to login to the website, fill the choices and then navigate further?
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Jun 18, 2011
I've been trying to make a app that logs into a website. So far it didn't work for me.I have trouble because:
- The "pin" (username) box on the site doesn't have an ID. (Can't use getelementbyid)
- The picture doesn't have an ID either
Codes I've tried:
With WebBrowser1.Document
.All("pin").InnerText = "mypinhere"
End With
End Sub
This should have, in my opinion, filled in the textbox. Now I need to click the login button?Also I found this in the source of the site:
<img src="/media/img/text_AccountPin.gif" alt="Account Pin" width="93" height="10" border="0"> <input type="text" name="pin" class="form" size="15"> </p>
As we can see, it says
name="pin"
So I should be able to use "getelementbytagname" right?Also, the formId is logmein (log me in)
<form id="logmein"....
This is what I came up with:
Dim webbrowserDocForm As HtmlElementCollection = WebBrowser1.document.GetElementsByTagName("logmein")
For Each curElement As HtmlElement In webbrowserDocForm
Dim controlValue As String = curElement.GetAttribute("Value").ToString
[code]....
in the next code it's tagname is "input" or "text"? Because I found:
<input type="text" name="pin" class="form" size="15"> </p>
Code for filling in:
webbrowserDocForm = WebBrowser1.document.GetElementsByTagName("text")
For Each curElement As HtmlElement In webbrowserDocForm
Dim controlName As String = curElement.GetAttribute("name").ToString
[code]....
It doesn't give me any errors no more, but it doesn't work either.
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Oct 7, 2010
I cannot for some odd reason get the webbrowser to navigate I have enabled web content I use the form button and place it the coding I put
Code:
Private Sub WebBrowser1_StatusTextChange(ByVal Text As String)
Me.WebBrowser1.Navigate2 "www.google.com"
End Sub
it just has a white screen
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Mar 15, 2012
I am using WebBrowser Control...
When form is loading i set webbrowser to navigate a website.
Now this website running too much popup ads.. So each time webbrowser navigate a new popup window open out of my application.. Is their any way to stop that..
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Apr 25, 2010
Is it possible to use WebBrowser.Navigate() with a proxy? I read somewhere that this is possible but I cant find the link now.
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Nov 2, 2009
I have a webbrowser on my windows form and a text box above that with a go button. The webrowser is a search page.Is what I would like to do is type something in the textbox and hit GO and it will search for that word in the webbrowser.The search is setup to where if you were to set the url as it would bring up the results for "keyword"Is there a way with the navigate function to do something like.[URL]..basically I need a way to append the text from the textbox at the end of the url.
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