Extract Only Particular Pieces Of HTML?
Nov 19, 2011
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>
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Jan 1, 2010
What i'm trying to do is retrieve 2-3 pieces of information from a parsed html file, then add the data into a listview in the corresponding columns i was initially going to do a function for each piece of information to retrieve but thought maybe i could do it all with 1 function instead.
[Code]...
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Apr 18, 2012
I'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].....
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Dec 8, 2010
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]...
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Jul 28, 2010
I 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>
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Apr 20, 2011
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
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May 11, 2010
How would I extract URLs from a website? For example, if the website was "url...", then the urls extracted would be[url]...
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Jun 11, 2009
How 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?
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Apr 7, 2012
I'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.
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Nov 24, 2011
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.
[Code]...
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Nov 14, 2011
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?
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Aug 5, 2011
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
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Jan 30, 2011
I 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="?
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Jul 26, 2011
There have probablly be thousands of threads just like mine[code]...
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Aug 28, 2009
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.
[Code]...
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Jun 15, 2012
I 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?
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Jul 20, 2011
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]....
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May 11, 2009
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")
[Code]....
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
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Dec 8, 2011
how I can extract the html code from giving URL?
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Jul 29, 2011
I 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?
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Jul 22, 2011
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
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Jul 11, 2011
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] .....
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Mar 20, 2010
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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Feb 24, 2012
I have got a problem with the regex pattern. I couldn't be able to extract the id in the images tags from the html source when I find the matches pattern that I selected on the listview items. [code] It have found the matches with the html tags, but it doesn't extract the id from the images tags. [code] Do anyone know how I can extract the id in the images tags from the html source?
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Sep 15, 2009
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;
[Code]....
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May 24, 2009
what i am trying to do is extract information beween two tags in some html from the source of a website. The contents of the text between the two tags will always be different. the code i currently have is;
[Code]...
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Dec 30, 2011
The info i need extracted is formatted:
<TD><A HREF="http://xxxxx.com/xxxxxx/index.html"><IMG SRC="../xxxxx/thumbnails/xxxxx.jpg"> </A></TD>
<TD>=== <B><A HREF="http://xxxxxxxxx.com/xxxxxxxx/index.html">LINE 0</A></B> ===<BR>
<FONT SIZE="2" COLOR="#400080">
[code]....
how do i extract the info between TD=== and /a and Line 1,2, and 3 and store it into a database from a live website?
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Feb 27, 2011
I'm reading html tags from a webpage using Webbrowser and HtmlElementCollection class. Then I invoke specific members (link, buttons etc.) depending on their attributes.I got stuck at one point. The webpage has many similar images in one place. They can be distinguished only but a version number. I need to get this number somehow to be able to invoke the correct link/image.this is the example of the html code (it looks like that - I only removed personal imformation from it) - lets say I got it already saved in a textbox:
<TR>
<TD>My text for label</TD>
<TD>my text for description</TD>
<TD>27 February 2011 12:12</TD>
[code]....
Now - I'm after the number 197 which appears couple of times in the code.I know what is the 'My text for label', 'my text for description' and 'my username'. Also those 3 links in form of images have always the same structure, apart from the number in question - number 197.How do I extract the 197 number alone ? If I would get it, I would use it to identify the link with ID: "id=snapshot_deploy_cms-company-3" and invoke it.Basically I want to do this:If a TR tag contains 'My text for label' and also contains 'my username', then read the number 197 and... say... save the number into a textbox.
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Jul 19, 2010
how to read a string in pieces.
Let's say the string is 800 characters long. I want to read 100 of them each time. How do I accomplish this?
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Aug 14, 2009
I'm having a bit of trouble learning the uses of partial classes. I know they are used to split a class into several pieces for convenience but I don't understand how to put all of this into play. I'll show you what I mean here:
Lets say I have an interface named "ICar":
.NET
Public Interface ICar
Sub TurnOn()
[Code]....
OK, now that I have all of that, how do I put it to simple use in my partial class "OffRoader"? (You can add a "console.writeline" event to the methods if you want, in order to show me the uses of these partial classes.)
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