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.
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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.
View 15 RepliesI have an app that is needs to access multiple web sites and sign up for accounts. I don't want to run them one by one as this would be slow as christmas so I figured that I could setup some sort of background worker and put each process on it's own thread that way the app could run each sign up page at the same time. Would using background worker be the "BEST" option to use for this type of application requirement?
View 1 RepliesI 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:
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I am trying to scrap multiple sites for data. thus i need asynchronus request. funny thing is my code brings the data back from the page but it doesnot show on my browser. I mean a msgbox will show the html content but when I try to update a div with the data nothing happens
RequestState Class
Imports Microsoft.VisualBasic
Imports System.Net
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I am venturing into WPF - first time in (VB).NET - and trying to re-create a project I started in MS Access VBA. It basically scrapes a series of pages within a web application. As you may have surmised I am having trouble with the LoadCompleted event.I have searched and found some information on it, but the "flow" of the code only lends itself to waiting for one page to load.url...All of the code execution is run in the DocumentLoaded event which works fine when you just need to navigate to one page and execute code. But I need to perform a series of these cycles for my application. How can I reliably wait for the document to fully load while still keeping the code execution in the same Sub AND not locking the UI thread? [code]That's it. Repeat for n times. my interactions with each DOM are significantly different.
View 2 RepliesI am making an application where a user can store their logons/passwords and other details for websites on the internet.My question is this: Am I able to have a list of all sites that the user has saved a password for on the internet?I don't think I will be able to get the password (because of Windows security), but am I able to see what sites the user has saved their password on, and maybe even the username they used?
View 4 RepliesIs there a way to check to make sure that you dont get a "page not found" error during a webbrowser.navigate call?
View 2 RepliesWhen I Webbrowser1.Navigate with my textbox the text inside of the textbox disappears.
WebBrowser1.Navigate(TextBox1.Text)
I want to make something that can on button click navigate to a page, wait the time I specified and navigate to another page..
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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?
I am creating a program that will assist users upload a file to a couple different upload sites. There will be RapidShare and Uploading. I want to keep the GUI clean and simple, so I do not want to use a web browser. I have not used much Post Data, but am wanting to use it for this job. What I want the program to do is after the user specifies a file, the program will automatically upload the file to the site.
Here is what I have so far:
Public Function MultiUpload(ByRef data As String, ByRef url As String) As String
Dim request As HttpWebRequest = DirectCast(WebRequest.Create(url), HttpWebRequest)
request.Method = "POST"
WebRequest.Create("[URL]")
request.ContentType = "application/x-www-form-urlencoded"
Dim postData As String = data
request.ContentLength = PostData.Length
request.ContentLength = PostData.Length
End Function
I'm trying to get this code to save the list when a new website is added, how do I get a list of collections to save a link that I designate into the list?
Private Sub ToolStripButton8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton8.Click
ToolStripComboBox2.Items.Add(WebBrowser1.Url)
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On my website I got a page that generates a random word... now I want to fetch that word and store it in my vb application.
How can I fetch the desired word and store it in let's say text3.text ?
I want to recieve a little bit of text from the webbrowser by using this:
Dim Result As String = WebBrowser1.Document.Body.InnerText
How do I just get one word from all of that? =]
Im want my webbrowser to remember the username and password on page that user log in at.Like FF where a bar appears and the user can chose to remember or not.I don't really
View 14 RepliesDim cmd2 As New OleDbCommand("SELECT Product_name FROM Products WHERE Quantity <= 5 ", cn)[code]..
This code outputs all the products in a list box which are below a quantity of 5, however for those products i wud also like to retrieve the maximum stock level which was assigned to all of them so i can calculate how much more is needed to fulfill the maximum stock level
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?
View 3 RepliesI know this is basic, but my mind is totally blanc. I'm trying to retrieve all records from a table with a specific code.
Dim cmd As New MySqlCommand("SELECT myValueRow FROM myTable WHERE searchRow = 'test'", myconnection)
myreader = cm.executereader
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I have an app that is going to sign into my social bookmarking sites...I already have accounts on all of these sites but I want to programmaticly click on these links but each link has a different name for the link.Each link does has the same inner text info in the HTML but different urls for the links <a href="submit.php?" rel="nofollow">Submit</a>...How can I program my app to locate and click on the link that has the <a href="" rel= "nofollow">Submit</a>..Is there a way to ignore the information in between the ""?
View 1 RepliesI 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:
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I am trying to retrieve the data from MS Access Table to LIST-VIEW, its difficult for me to write the code
View 4 RepliesI 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
I'm Trying to send a file to multiple hosts by which sites they select on the treeview control. I can't figure out how to set it up.[code]...
View 2 RepliesI 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..
Is it possible to use WebBrowser.Navigate() with a proxy? I read somewhere that this is possible but I cant find the link now.
View 1 RepliesI 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.
View 2 RepliesI was thinking:
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
Browser.Navigate(ComboBox1.SelectedItem)
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I'm working on a webcrawler in VB.net, and using the System.Forms.WebBrowser object for handling navigation on sites that use javascript or form posts, but I'm having a problem. When I navigate backwards (WebBrowser.GoBack()) to a page that was loaded with a form post, the page has expired and I have to do a refresh to resend the request. When I call a refresh (WebBrowser.Refresh()), a dialog box pops up to confirm. Is there a way I can get around this modal dialog in code?
View 3 RepliesI'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?
I need to send a pdf file to a web page in VB.net. I found that there is a webbrowser control and I should be able to use the navigate() method to do it.However, there is no sample for doing so.
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