The following code is giving me a headache. As you can see there are message boxes in there for a quick debugging tool. It displays the messagebox "Still looping" once, and then shows the form. No other code runs. Doesnt matter what I put it it just doesnt run. I can't see a problem anywhere....
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How do you access a web page's source code without downloading the file? i.e., downloading a .php file generally wouldn't work - I want to access the code that it would return if I was using a browser.
View 6 RepliesHere is this code of the webpage:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>File List</title>
<style>
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What I am wanting to do is create a program that will load up a page (it is password protected) and get the links out of any files that I need to download. The green text is the text that contains the link and will be repeated for every file.One little thing is that there are multiple pages that are accessed through JavaScript with the code highlighted in red. So, I also need to step through the pages and get a list of all files on subsequent pages.
Everytime I run this program, it will get a list of all files and only download the ones that aren't already downloaded. However, I have never done this before and was wondering what I need.I have accessed the source of pages and parsed it for things like links before, but not sure if that is the optimal way or if there is some other way to handle this particular situation easier, especially since I have multiple pages to deal with and JavaScript.
I'll be able to get some advice and help with regards to my question. Basically I am trying to achieve the task of downloading source code from a website say forum then using a simple parser technique remove the metadata from the uploaded data and store it into the database.
I know how to download information from a website by using the following code
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I decided it's time to migrate from VB6 to VB.NET and am currently translating my radio player but have run into several issues so I might be on this forum for the rest of the day... Anyway, in VB6 I used Inet to get the source of a PHP page that had the current song that was playing on the SHOUTcast stream. I can't seem to get Inet to work and figured I would just look for another method so I wouldn't need to pack msinet.ocx along with the finished product.
How can I get the source of the PHP page and store it in a variable or textbox/label.
I've been trying to make a program which access the internet and takes the source code from the webpage. I've copied this code from the internet:
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From my login form, and when a correct Username and Password has been succesfull and I get a messageBox saying "welcome to your System" (Picture Below) and when I press the OK button in that MessageBox, I want to open Form3.do I add code to the Underlined code (below Picture), or Do I write a completley different code after the messageBox code.
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Here is this code of the webpage:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
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I'm using this piece of code for VB.NET to download the text from a website:
Dim Str As System.IO.Stream
Dim srRead As System.IO.StreamReader
Dim req As System.Net.WebRequest = System.Net.WebRequest.Create("http://www.example.com/file.txt")
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It is just a text file, and is rather small, so it downloads really quickly. But I do believe that in the future the file will become considerably large. Is there a way to track the downloading progress from the above method?
I am using webbrowser control and i am trying to login website automatically login is done but i want to addcontainer button when i click this button on webpage then showed one poppup window named add container he has two buttons ADD CONTAINER and CANCLE one texarea when i type containers in textarea and click on ADD CONTAINER he showed MessageBox Container add successfully.actually i want click this MessageBox OK button directly by coding so how can i do this i am giving my some code
If i = 1 Then
If WebBrowser1.ReadyState = WebBrowserReadyState.Complete Then
Dim JS As HtmlElement = WebBrowser1.Document.GetElementById("login")[code]........
This is the function im using to download the HTML source of a webpage, it works fine.
Public Function HTMLSource(ByVal strURL As String) As String
Try
Dim wClient As New System.Net.WebClient(), temp As String, _
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Ive tried a few times to implement the above code into my function but all im getting is error messages? how to implement the above call back into my function, or any other way of making it async?
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Above is the response of the page I am trying to get if I enter the URL: However, the program just crashes with the following code (i.e. never even displays final - meaning stream is still going on) I think that it is streaming the video, in addition to the source- which I do not want to happen How can I retrieve this source?
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How can I update the text in tab control so that it displays the title of a webpage?
View 12 RepliesFor some odd reason, when I download text files, the HTML of the web page is being appended to the text! All other file types work fine!Here's the code that's doing the download:
Public Sub DownloadBlob(ByVal Blob As Byte(), ByVal FileName As String, ByVal Response As HttpResponse)
Response.AddHeader("content-disposition", String.Format("attachment;filename={0}", FileName.Replace(" ", "_")))
Response.ContentType = String.Format("application/{0}", Path.GetExtension(FileName).Substring(1))
Response.BinaryWrite(Blob)
End Sub
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So i am able to use the function to get a webpages source, however when i messagebox it out, its not the same as if i go to a normal browser, and go to "view source"
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I know that .NET has several classes to do that, but sometimes I need to download a webpage that requires login, like a forum. I do not want users to fill in their sername/password in my application, because I know I'll get a lot of complaints about that. WinInet handles cookies automatically (if the user is logged in with Internet Explorer), but WebClient, HttpWebRequest and WebRequest don't.In my VB6 application I show a messagebox, telling the user that the webpage can't be downloaded the 'normal' way, but if they want, that the application can still download the webpage if they are logged in with IE.This is the VB6 code slightly modified. It works fine until it gets to the line:
vb.net
iResult = InternetReadFile(hInternet, sBuffer, BUFFER_LEN, lReturn)
I think something is wrong with the InternetReadFile declaration.
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I'm looking for a way to "pick out" a url string from a webpages source. The source always has a unique identifier for the url. Here is the complete line from the webpages source where the url appears.
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Been working on a Web Browser in VB 2008 Express, and so far things have been going good. I have run into a little problem though. I have a menu bar at the top of the browser as normal and one of the items selects is "View" and then under that "Page Source".
Now, i have added the following code and it works as expected but one problem. When the box opens to display the web page source it has no scroll bars, minimize or maximize buttons to manipulate the page.
Private Sub PageSourceToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles PageSourceToolStripMenuItem.Click
Dim pagelSource As String = WebBrowser1.DocumentText
MsgBox(Me.WebBrowser1.DocumentText)
End Sub
I think the problem is that I am using "MsgBox" . Would there be a better way to do this?
I would like to read the (Any)webpage source(Not using StreamReader) even if the webpage loads inside iFrame.
View 1 RepliesI am working on a task in which I have to download all flash objects swf and flv files running in web page. I have got no clue to find he source of .swf file, as mostly swf files comes from other servers. I want to find out some way to find the source / url of .swf currently running. Kindly suggest me some way.
I have 2 ideas in mind, but currently unsuccessful in implementing them
1. Using WebBrowser class and somehow find url of swf.
2. Using Pcap to fetch all http packets and after decoding, some how try to find url coming.
how can I extract the source code of a web page and to save it into a text file -- I would like to have a VB code to do the same?
View 3 RepliesBasically I am building a webcrawler and in order to do so
I have to extract the page source of a webpage which I can do so like this:
CODE:
The above code works fine on most of the websites I have tried to extract page source from but for some reason it is failing to extract the html contents of few websites like these where the message posted by a user is nowhere to be seen? The webpage in question is this: [URL]
Is there something I have missed or is it due to forum protection etc which is preventing the vb application from extracting the whole page source?
I need to be able to find a piece of the webpage source. It always starts the same, but as a random number behind it.
So sometimes it could be...
Example.com/123345
And Sometimes...
Example.com/098765
But will always start the same. I only need part of the source, not all.
How to get source/HTML code of the web page that is shown in WebBrowser1 when I click a button? I would like it to be written in Notepad or eventually in new form..
View 2 RepliesI am working on an app that requires searching the source code for a printer's web page for some information. I have used several methods to retrieve the source code (WebClient.DownloadString, HttpWebRequest.GetResponse) and in all cases recover only a portion of the web page. I can use View Source on the webpage and it is a 14K file, but using the VB functions I only get 5K of it. In these cases the data stops just prior to a <div class="tabBox"> tag containing data specific to the printer. I have also added code to pause the app, thinking that maybe it needed time for the page to complete before returning the code. Any ideas what I need to do to get the whole page?
View 3 Repliesi wanted to know if there was a couple lines of code you could use to open the source code of a website (like you could in notepad), into a textbox in visual basic.
View 1 RepliesI am trying to read product caracteristics from the source code of my supplier web page and store in my database. The code i created is just to show me the characteristics in a messagebox then i will store them in my DB. But i get an error in the If atrname.Count <> atrvalue.Count Then since values did not match titles count.[code]...
View 3 RepliesOk I was wondering how can I grab the source code from webbrowser1. The problem is that I cant find this line of code in the source code. I cant only find it if I highlight what I want and do a right click and look for the source code. I heard is was like a hidden part of the source code. How canI implement that in my program?
View 4 RepliesHow to go about extracting user comments on likes of forums by using the page source.[code]...
View 6 RepliesI want to get the links and images from an html code using the htmlDocument class available through webBrowser.So I retrieved and assigned the html code to the webBrowser trying each one of this 3
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