I am iterating through the lines of a RTB that has captured the HTML of a website. I want to check each line for a URL (just the first one is fine) ---- I can create a substring when it finds an http:// but I cannot figure out how to get rid of everything after .com or .org, etc.I have found a regex that supposedly does it but am not sure how to implement it.... here is what I have so far: For Each currentLine As String In rtb1
[Code]....
I have the following multithreading function to implement threads fetching from a list of urls to parse content. The code was suggested by a user and I just want to know if this is an efficient way of implementing what I need to do. I am running the code now and getting errors on all functions that worked fine doing single thread.for example now for the list that I use to check visited urls; I am getting the 'argumentoutofrangeexception - capacity was less than the current size'/Does everything now need to be synchronized?
Dim startwatch As New Stopwatch
Dim elapsedTime As Long = 0
Dim urlCompleteList As String = String.Empty
[code]...
I have the following code that has the webbrowser1.navige via textbox1.text lines of urls:
Public Class Form1
Dim index As Integer = 0
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim lines() As String = TextBox1.Lines
If index < lines.Count Then
WebBrowser1.Navigate(lines(index))
[Code]...
How do I get the webbrowser to loop back around to line 1 (the url at the top) when it has finished navigating to the last line of text/url?
How would I extract URLs from a website? For example, if the website was "url...", then the urls extracted would be[url]...
View 1 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 am trying to capture URLs in HTML file which appears like
<a[string]href[space(s) or nothing]=[space(s) or nothing]["][url]["][string]>
I found this code but it does not work well.
Imports System.Text.RegularExpressions Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim rx As New Regex("[<]a[s][wW]*[href=](?<word>S*)[sWw]*[>]", _ RegexOptions.Compiled Or RegexOptions.IgnoreCase) Dim text As String = "<a href=http:// name=as>" Dim matches As MatchCollection = rx.Matches(text) For Each m As Match In matches MsgBox(m.Groups("word").Value) Next End Sub End Class
I need to find .MP3 format URLS in a HTML source code.So how could i do that?Lets say i have:
Dim wcClient As New System.Net.WebClient
Dim data As System.IO.Stream = wcClient.OpenRead(inbox.ToString)
Dim reader As System.IO.StreamReader = New System.IO.StreamReader(data)
reader = reader.ReadToEnd()
reader.Close()
so how could i find all the .MP3 urls which are in the source code?
I've found some examples using RegEx but im not really sure how to use the RegEx pattern to find MP3 urls in the source code.
I have a list of 100,000 urls in list(Of string) which can contain urls in the form. [URL] i have tried using a combination of regex and the Uri class, but that didn't help, so i dumped the code. How do i filter these duplicates and keep just one of these url
View 8 RepliesDoes mshtml work with HttpWebRequest? If so, how do I work with it? I thought of downloading the source code of the page I'm requesting into a richtextbox and do my stuff from there, but it sounds kinda impractical to me since I have to use regex to get the innertext of stuff (or not?).
View 3 RepliesI would like extract the data elements from tables within HTML pages.The output should produce an XML file.What is the best way to do that? I am using VB.NET 3.5.
View 7 RepliesI want to parse a LOCAL html file and I don't know how. For example i have a file "c:MyFile.html" which contains:
<html>
<a> My String </a>
</html>
I have been working on my program for a little bit and one of the features I want to add is have it extract the URL's from a website. I would need it to just go through reading the "description" for each URL and then if it maches the one I am looking for it will add the URL to an array list. I know I need to use regex, but I just can't seem to get it to work.
View 3 RepliesI'm trying to parse the HTML from this link and put the stats into a DataGridView or some structure that can be queried (DataTable or database).I tried using HTML Agility Pack previously but couldn't figure out how to make it work. Here is a small sample of the data I want to extract:[code]Keep in mind that there is HTML code before & after the stats section that creates the page elements, etc.I am just looking to get the data from the stats section that is structured as shown above.
View 8 RepliesWas wondering if someone could give me some direction on this. I've spent a decent amount of time on it and don't seem to be getting anywhere: I have a hidden field that I'm trying to parse out of an HTML document in VB.Net. I'm using a System.Windows.Controls.WebBrowser control in a WPF application and handling the LoadCompleted event. Inside the LoadCompleted event handler I do something like this:
[Code]...
I am trying to take a string that I have marked up through vb.net code and cross-check it with the text file it came from originally. This is for proofreading the html output.To do this, I need to parse an HTML snippet that does not come from a URL.The examples of HTMLAgilityPack I have seen get their input from a URL. Is there a way to parse a string of marked-up text that does not include a header or similar parts of a well-formed webpage?
View 1 RepliesI am trying to extract inforamtion from a website, I was able to get to the point of extract HTML to TXT. not I want to parse from this line TOTAL 3723
View 1 RepliesIn VB.NET 2005, what is the best way to retrieve and parse HTML data from a URL, a bit like a search engine crawler?I am building an app, where I need to parse a website, and collate data from it (the website uses some tags that I could pull out to get the appropriate bits of data). I want to be able to do this in a thread, and just update a DB with the data, and give the client app a status update of the progress.
View 6 RepliesOkay well, on
[Code]...
and I cannot seem to figure out how to get it to just return that line and not the whole source. Heres my code so far
[Code]...
I am developing a small window based program where I want to parse HTML tags from richtextbox. How can I do this?
Details: In my program, richtextbox holds HTML source code. and if it contains <img src="images/image.gif" border="0" alt="alt Text" />
then i want to get string "images/image.gif" . so how can I do this?
I certain html page contains links that are displayed with each onclick event. I am unable to parse the html for the url that will follow these onlick links. If this is the source on the page, how do I capture the content that each onclick link displays. In other words for example:
[Code]....
Now this is the onclick link that will display some content which I need to capture. Basically I want to be able to activate the onclick event from a program to display and capture the url links from that specific page.
I am trying to remove the tables within an HTML file, specifically, for the following document, I'd like to remove anything within the tags <TABLE....> and </TABLE>. The document contains multiple tables with texts in between.
The expression that I came up with, <TABLE.*>s*[s|S]*</TABLE>s*, however would remove the text in between the tables. In fact it would remove everything between the first <TABLE> and the last </TABLE> tags. I would like to keep the texts in between and only remove the tables.
[Code]....
I'm using the following code to retrieve a URL and then parse the HTML from the page:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnStart.Click
Dim Temp As String, searchstr As String
[Code]....
I think my problem is that I don't exactly understand how I am supposed to start and end the parsing. I know that in my above code, the "meta" tag is the start and the chr(34), double quotes, is the ending.
When I modify my code, I have price line, which in th html ends with another character, the ">" sign. In the first code, the "content" tag doesn't end with another character, it just continues the line, which is easy and it works.
I am trying to take a string that I have marked up through vb.net code and cross-check it with the text file it came from originally. This is for proofreading the html output.
To do this, I need to parse an HTML snippet that does not come from a URL.
The examples of HTMLAgilityPack I have seen get their input from a URL. Is there a way to parse a string of marked-up text that does not include a header or similar parts of a well-formed webpage?
ive looked on google im not sure if im looking for the right thing as im kind of new to this type of thing, basicly i just want to print some text in to a label thats located beweteen a link on a web page the html is as follows:
View 2 RepliesI have parsed html code so it looks like this:
Quote:
<ul>
<li style="color:#cc3300">
<div class="myclass">
<span class="span"><strong>Content i need #1</strong></span>
<span class="span">
[Code]...
again after a week of trying to figure out how to parse a HTML table I have yet to figure it out.Below is the Table I am trying to get the information out of.
[Code]...
The problem I am having is that It pulls out the 28,900 fine but I need to pull the rest of the information IE the 23,132 and the 170,000 and they will get placed into other Labels. Now they are not Static numbers they change all the time to higher or lower lumbers.
How to parse HTML added by code behind using vb.net code ?[code]...
View 1 RepliesPrivate Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim StrInput As String = Display.Text
Dim firstInteger, secondInteger As Integer
firstInteger = StrInput.IndexOf("ad_list_link", 0)
secondInteger = StrInput.IndexOf("ad_list_link", firstInteger)
[Code]...
I need to string z from a webpage source file but having trouble cutting the code around it away.
I have fetched the html page and stored it as a string and now wish to parse it. I tried the following but I cannot get all the text between the following tags.
<entry...</entry>
If Not String.IsNullOrEmpty(_html) Then
'get all href tags in the html page
[code].....
I have a webpage I would like to parse but not too sure how to capture the links activated by clicking on links. I have take suggestions about using regex to capture the onclick statements but that does not seem to help since it does not capture anything. Here is an example of what the html contains:
<li><a href="#" onClick="SelGenre('001'); return false;">プライベート</a> (4235)</li>
<li><a href="#" onClick="SelGenre('002'); return false;">なかま</a> (1121)</li>
<li><a href="#" onClick="SelGenre('003'); return false;">ペット</a> (398)</li>
<li><a href="#" onClick="SelGenre('004'); return false;">美容と健康</a> (956)</li>
Now if I capture 'SelGenre' and try and normalize that with the webpages root etc it does not work. Clicking on the link will display other links that I need to capture.I thought it may contain some javascript file but it did not even after trying to use firebug.