I Have a folder that gets a lot of html files dumped into it I have to read each file and parse it to extract information. What I need is to be able to load the html into a HTMLDocument, but I'm having trouble.. here's my code so far..
Imports System.IO
Imports System.Reflection
Imports mshtml
[code].....
I just spent about 2 hours searching this forum on this topic but I need some advice. I am looking to extract certain data from HTML source code that I have down loaded into a text file its about 9KB in size.I am looking to keep all email address found. How would this work or what would be the best method to use? This is what I would like to extract and write to another file:
[Code]...
I'm having some trouble putting the pieces together.First of all, I'm currently using the WebBrowser component, but would be plenty happy with HtmlAgilityPack if it had some decent documentation, but for a newbie as VB.Net, it's a rough road.
<h3 class="this-class">
<p><a href="file.html">Title</a></p>
</h3>
[code]....
What I'd like to do is grab all the h3's with the "this-class" class and stash them into an array (one in each array element).I'd then like to search through each one and see which has "And Another Title" - which I already have the code to do... I just don't know how to do the first bit.
I'm having a brain block on how I can make this happen.I have an HTML document, like below.
<blockquote>
<p><a href="file1.html">Hyperlink 1</a></p>
<p><a href="file2.html">Hyperlink 2</a></p>
[code]....
Imports System.Web
Imports System.Net
Imports System.Net.ServicePointManager
Public Class GetSource
Function GetHtml(ByVal strPage As String) As String
tryAgain:
[Code]...
What I got here is a vb.net code where I parse the website for its html This function works fine. The question is this...
1.If I run 100 threads with this function at the same time, Will it work?
2.Won't it affect my internet connection as well?
I don't want to waste time creating threads and codes a hundred times so if you know the answer please advice me on what should I do instead
I successfully wrote a code to retrieve a version number from a HTML page which is this:
<div class="header">Latest Version: <span class="version">6.59</span></div>
So the following code will return the version number which currently is 6.59 which is what I'm after. [Code] But then i remembered that releases are done as following: 6.59, 6.59b, 6.59c, 6.60, 6.60b etc. So when the b version of 6.59 is released the parser will still return 6.59. So how can i make this code better?
so here's the code I'm using right now.
View 4 RepliesI need to parse a web page for blocks that contain open trouble tickets. The web page display several unresolved tickets and each one is inside a html divison labeled "issue-status". I've written the following code which does find the blocks, but when I try to parse its children to get its element fields (date opened, person requesting, history...) it instead pulls every element from the web page, not just the children.Is there a way to just parse the sub-fields under a particular DIV?
Code:
Dim theElementCollection As HtmlElementCollection
Dim strResult As String = ""
[code].....
Parsing HTML in code? Content removed.
View 7 RepliesI am trying to parse some html in vb.net but i not sure how to do it. The html that what i am trying to parse is:
[Code]....
get generic regular expression for my html file ....????? My html is....
[Code]...
I'm a PHP/MySQL/HTML guy, but in the course of my work, I sometimes have to delve into Gatesland.I am working in VS2005 developing reports, and occasionally I have to write some custom code. This code is in (I believe) VB.NET. I avoid this as much as possible. It is my belief that if you have to use custom code in a report, you're doing something wrong with the DB, or with your query.Now, my boss (for reasons unknown) is storing data in the database as HTML. This data is historical, having a month and a dollar amount, and comes in a form like this:[code]I know this breaks even 1NF. I did not design the database. I simply must suffer under it's schema. See, the developer did this so that he could just read in a field, and dump it straight out to an echo/print statement when forming up the HTML. Unfortunately for me (the report developer), HTML shows up as verbose text if I dump it out as a field in a text field in a VS2005. So, I need to strip out he HTML tags, and replace them with appropriate values.
I am first trying to strip out the <th> data, and print it out with appropriate line feeds and carriage returns. This is the code I am trying to use:[code]Now, far from doing what I intend it to do, it simply returns the jubilent result "#Error". Wonderful. I'm sure the client will be happy.There must be some simple syntax errors or something going on there, but I am nowhere near an expert with VB.NET. I've used VBA extensively, but last time I used it was about 3 years ago. I'm hoping I can cash in some of that positive rep I've got, and get some much needed help in the dark wilderness of Microsoftia
I have saved some HTML pages from the web...now i want to parse some specific data. I mean I want to retrieve some specific part from the HTMl page using VB/C# code. How do I go about it? I am using this code to read the html file..All i want to do now is to save the specifications to the DATABASE.
1. How do i select the specifications and display them in a ListBox??
2.How do i save it to the DATABASE??
I've been programming in VB.NET 2005, 2008 and now 2010 for almost 2 years. Just casual little applications, nothing big.In this project I need to parse links from a web page, it doesn't quite work though, it parses the names only and no links.I'll give you my code, let's say for a random page:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
TextBox1.Multiline = True
WebBrowser1.Navigate("http:www.buyfixuse.com")
[code]....
If I activate this function in my application instead of links to the two blog posts on that website, it only gives out the text that is related to these links - (more...)
I have an website with dynamic text on it, i want to transfer the text to an textbox, and the text is between this tags:
View 11 Repliesi need help parsing html using regex..i am hardly find the exact expression to use.
[Code]...
what i am looking to do is Parse this webpage [URL]...and pull out certain pieces like
@ScriptManifest(authors = { "ZMSP" }, keywords = "Crafting", name = "ZMSP's Battlestaff Maker", version = 1.00,description = "Makes Battlestaff.")pull out
[Code]...
how would i go about doin this putting those in a textbox and then putting the entire script into a richtextbox or anything really.this is the program so far so u can get an idea what im doing.
This page here has a table I need to parse.
It has multiple tags like this:
<td style="text-align: center;"><img src="http://www.pkmdb.com/res/icons/001.png" alt="Pokemon" /></td>
<td style="text-align: center;">001</td> <td style="text-align: center;"><a href="http://www.pkmdb.com/DL/PKM/bulbasaur.pkm">Bulbasaur</a></td> <td style="text-align: center;"><img src="http://www.pkmdb.com/res/types/grass.png" alt="Type" /></td>Different Number, different name. I need a way to get the number and name out of these tags. I'm rather terrible at this, and I've seen examples on the site, I just don't know where to start really on this.
I have a WebBrowser control on a form and pass HTML code to it to "preview". This works fine in development on a Win XP machine but on the target machine with Win 2K it just shows the HTML code in the control and doesn't parse it.
[Code]...
I'm able to retrieve the source code of a web page and store it in a string variable. I would like to cast that string variable into an HTMLDocument if possible, to make parsing its elements much easier.
View 5 RepliesI'm still learning the ropes in VB.NET and I'm currently up to a point in a current project where I would need to parse links on an html website once the information has been downloaded to the document completed section of my web browser.
View 3 Repliesi have a script running to collect a websites HTML and parse it enough to make the outcome look like this:
Code:
<div class="title_box_art">
<a href="/titles/164197" title="Zombies Zombies Zombies (2008) 2.3"><img alt="70104435" class="box_image" src="http://cdn-5.imagehosthere.com/us/boxshots/large/70104435.jpg" /></a>
[Code].....
how to go about looping through each DIV and gather that information.
i have a script running to collect a websites HTML and parse it enough to make the outcome look like this:
Code:
<div class="title_box_art">
<a href="/titles/164197" title="Zombies Zombies Zombies (2008) 2.3"><img alt="70104435" class="box_image" src="http://cdn-5.imagehosthere.com/us/boxshots/large/70104435.jpg" /></a>
<div class="box_art_title">
[Code]...
I'm trying to do some screen scraping, and discovered the HTML AgilityPack, but am having some trouble figuring out how to use it with VB.net.The first thing I want to do is find the URL string for an HREF tag if I know the text that is enclosed in the HREF..
View 1 RepliesI want to get data of one of active web page open by the user in the internet explorer , since he or she might can open lot of tabs or windows and i want to extract data from the specific page , so i am detecting the title and then running the script for data extraction but unfortunately i am unable to do that , i am able to track the page but there is however some issue that its not reading the data from HTML page ?my question , how i can reading specific tags or data like for table , tr and td first load into some text file and then do some search on it to collect specific data, kindly see my code below i am using for getting data
Code:
Imports SystemImports System.Collections.GenericImports System.ComponentModelImports System.DataImports System.DrawingImports System.TextImports System.Windows.FormsImports
[code].....
Let me preface this by saying I'm VERY limited in my programming knowledge/experience using any language. I mean I have extremely basic capabilities and don't quite understand this stuff inside and out like most of you do.Anyway, I'm trying to code a fantasy football draft program in VB 2010 that utilizes the MS Internet Transfer Control 6.0. It will retrieve the HTML from a website, say ESPN, and parse the data into player names, rankings, and other stats. Should all be simple strings/sub-strings. It will then populate a DataGridView control so that each row in the DGV has the player's name, ranking, projections for the season, etc. After this has been populated, the program will be designed to allow me to draft players and assign them to the various teams automatically. I am the commissioner and we do an off-line draft, so I will just make picks for everyone and submit them online later.
View 9 RepliesIs there any way to convert an HTML string to an HtmlElement for easy parsing? If not, what's the best way to proceed?
View 3 RepliesI'm using HtmlAgilityPack to parse HTML. I want to check if an element has a specific attribute. I want to check whether an <a> tag has the href attribute.
Dim doc As HtmlDocument = New HtmlDocument()
doc.Load(New StringReader(content))
Dim root As HtmlNode = doc.DocumentNode
Dim anchorTags As New List(Of String)
For Each link As HtmlNode In root.SelectNodes("//a")
If link.HasAttributes("href") Then doSomething() 'this doesn't work because hasAttributes only checks whether an element has attributes or not
Next
[code]The two parts I've coloured red change, I need to grab the first part which is the link but I'm not sure how to do this. I've used regex before and it doesn't look possible to use it on this on this, there's about 25 of these in the source.
View 11 Repliesi have a script running to collect a websites HTML and parse it enough to make the outcome look like this:
<div class="title_box_art">
<a href="/titles/164197" title="Zombies Zombies Zombies (2008) 2.3"><img alt="70104435" class="box_image" src="http://cdn-5.imagehosthere.com/us/boxshots/large/70104435.jpg" /></a>
[Code]....
I'm not sure how to go about looping through each DIV and gather that information.