I am using visual basic 2005. I found on the web the following function that extracts HTML from webpages. It is very useful but unfortunately it does not work with redirected pages. That is, when I put in it a URL of a redirect page it gives me nothing or error. I added to it ".AllowAutoRedirect = True" but still it did not work. I wonder how to make it work for redirected pages.
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I want to extract the link in this code: <a class="i_link dominantcol" href="http:rapidgen.net/get/3lt4c/megakey.exe">Download</a>.Using webbrowser1. getelementbyid - how do i do it? I just want the link as dim x as string = http:rapidgen.net/...t4c/megakey.exe
View 1 RepliesI am working on my application that I am reading the strings through html page using with httprequest. All I am trying to achieve by find the value using with the matches which come next equals, something is like: "Address=Whateveritgoeshere". So I want to extract to get the strings which it would be: "Whateveritgoeshere"
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Address of URL
Dim URL As String = "http://mysite.com/getInfo.asp?id=" & Textbox1.Text
[code]....
However when I deug to run the application, I have got an empty returned strings. Do you know why I have got an empty returned strings?If you think that I have done something wrong then how I can only extract the strings that come next to the "Address="?
I've tried to extract the URL from an html page using regular expressions. It is really hard to understand. I have an existing application and would like to alter the code to search for a url in the form src="[URL]" the problem is that ive tried to use different expressions to no avail. could someone look at this code and advise how to alter it do what I need it to do.
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I am trying to extract a url from a html page that is located specifically between the <h2 </h2> header. For example the following header is in the html page;
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I have a following code
selenium.Open("/logon.aspx")
selenium.type(strUsernameID, pUsername)
selenium.type(strPasswordId, pPassword)
[code]...
But as soon as I click the home link its redirected back to login page. This code works fine with another URL. I tried by putting id, everything. but couldn't figure out why its behaving like this.
I have a normal winform and I would like to know is there any possibility to generate a html page and to add a css file to the html page from the local folder.
something like this:
<html>
<head>
<script type="text/css" src="MyDir/main.css"></script>
</head>
<body>
</body>
</html>
How do I do this from the codebehind(logic part)not web application codebehind using webbrowser control.
invoke a "link address" without actually being redirected to that page?
View 3 RepliesI've given a job to convert old data in table format to new format.Old dummy data is as follows:
<table>
<tr>
<td>Some text 1.</td>
[code].....
I'm looking for an efficient means of extracting an html "fragment" from an html document. My first implementation of this used the Html Agility Pack. This appeared to be a reasonable way to attack this problem, until I started running the extraction on large html documents - performance was very poor for something so trivial (I'm guessing due to the amount of time it was taking to parse the entire document).[code]...
View 3 RepliesMy application is intended to crawl a URL page and extract all possible links from the page.It works fine for a certain URL but with another it keeps causing problems. When the root page is accessed it correctly extracts the different directory links. but when it requests the directory links html page it pulls the main root URL again. someone mentioned about redirection but when debugging I see the url variable containing the directory link correctly.
View 2 RepliesI'm trying to extract a single page from a multi page pdf and I'm using the code below;however, I'm getting an error that it's not recognizing <param name>.
''' <summary>
''' Extract a single page from source pdf to a new pdf
''' </summary>
[code].....
I'm trying to extract a single page from a multi page pdf and I'm using the code below; however, I'm getting an error that it's not recognizing <param name>. [code]...
View 1 RepliesI would like to extract data from a html tag. The html tag is included inside a big html document.
Precisely i would like to extract the value of "txtGUID" from this html tag :
<td width='75%' bgcolor='#F3F3F3'><input type='hidden' name='txtGUID' value='soft:24f709f1-becb-44c6-8359-7c8b0b4a6e14:SLIP'/></td>
I need to extract some data from a html source [code]...
Now the problem is the words info ect.. wont always be there the content will change so can do something like getelementsbyclass or is there is a way to extract the text between
"<div class="bbcode_quote_container"></div>" and "</div>"
I am using a web browser control by the way
I have came up with code in my vb.net app that can extract particular tags, but what if I wanted to extract only certain lines of html code?
<td style="min-width: 100px; " align="right" class="aw-td body-td">4,400</td>
How would I extract URLs from a website? For example, if the website was "url...", then the urls extracted would be[url]...
View 1 RepliesHow would I use Regex to extract the body from a html doc,taking into account that the html and body tags might be in uppercase, lowercase or might not exist?
View 3 RepliesI'm trying to extract a portion of html between 2 comments.
here is the test code:
Sub Main()
Dim base_dir As String = "D:"
Dim test_file As String = base_dir & "72.htm"
[Code]....
The HTML file contains the start and end comments and a good amount of HTML in-between. Some content in the HTML file is in Arabic.
I'm wanting to extract a table on a regular basis from an HTML web page in to a listview control. Before I start the long winded manual process (which I'm sure I can do, finding strings etc). I was wondering if there was a built-in way with VB.NET?
View 6 RepliesThere have probablly be thousands of threads just like mine[code]...
View 1 RepliesI know how to extract an entire page source into VB.NET, but once I do that how do I make VB.NET search the text and return a specific vlaue that is not constant?
Take this line from the page source for example:
<td id="actualPriceContent"><span id="actualPriceValue"><b class="priceLarge">$4.30</b></span>
the text is always constant but the price is not - how do I make VB.NET return the price?
im parsing the data from a webpage... It basically contains a table whose source code ive pasted below.... Now i need to get the values of each cell of the table into a listbox... So basically i need to extract the numbers in the <td> tags... Now the table has approx 10 values similar to the 4 ive added below..
<table cellspacing="0" cellpadding="0">
<tr>
<th>Serial NO.</th>
[code]....
i am trying to extract some usernames from a website. normally i dont have a problem and but cant get it to work...here is the code i normally use
For Each temp As HtmlElement In WebBrowser1.Document.Links
Dim str As String = Nothing
str = temp.GetAttribute("href")
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but this is the html code i want to get from
<a href="http://help.com/?status=@astradamasta%20&in_reply_to_status
how would i go about getting the user which is astradamasta
how I can extract the html code from giving URL?
View 9 RepliesI have some html that I want to extract any data that is between the following two bits of HTML:
<DIV class="this-text my-data">
</DIV>
What code would do that?
I need to extract some info of a HTML source code and put it in a textbox...i treid a lot of things and even the best idea's crasht what i got this far is :
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
WebBrowser1.Document.GetElementById("value_wood").SetAttribute(TextBox3.Text, "class")
End Sub
[code]....
the number that i want in the textbox is : 8,466
I am trying to extract everything between the body part as I am building a forum crawler
and since all the user posts are between the <body></body> I have chosen to experiment
with Regex. So far I have coded the following but sort of stuck on how to output the result say in a textbox? Also I am not sure if the body part of the regex is correct.
Dim URL As String = Textbox1.Text
Dim request As System.Net.HttpWebRequest = System.Net.HttpWebRequest.Create("URL")
Dim response As System.Net.HttpWebResponse = request.GetResponse
Dim streamReader As System.IO.StreamReader = New System.IO.StreamReader(response.GetResponseStream())
[Code] .....
Basically 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 am new here and really excited to see the huge resources on this forum for vb.net. I have just started my learning of vb8 and need to create some basic applications for my personal use.I need to develop an application that can extract data from a html table and store that data into Access database. I have learned to create web browser on Visual Studio 2008. Below is the link from which I need to extract data and store into a database
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