Scrape Some Information Off Of A Webpage That Is Heavily Javascript Enabled
Mar 27, 2011
I am *VERY* new to web-scraping and am trying to scrape some information off of a webpage that is heavily javascript enabled. An example of the page I am trying to scrape from is: [URL] I am trying to scrape the property links such as "322 E 98th St" The text appears on the webpage and I can find the link myself, but it doesn't appear in the page source code.
I am trying to scrape it using the webbrowser control using the WebBrowser1.DocumentText property, but it doesn't even show the links simply when I view the source in ie. I am sure this has something to do with the javascript it uses to load up the page or maybe iFrames,
AS in the title i would like my browser to navigate to http:qfi.im Button1.click... etc etc Webbrowser1.navigate("http:www.qfi.im")Then in the link box it should paste link in text1.text
Then it would press submit in bottom right corner Then it would grab the generated link that appears in the right-hand-side click it then begin download I would usually know how to do this but this is javascript enabled and is causing errors inside the form webbrowser
I've currently got a service that produces xml files every 10 seconds containing server information. I'm looking for a way to display this on a web page. I have been looking on the web for the best way to do this and it seems that using AJAX would be good as it allows the loading of dynamic content to be done in the background. However how can I use AJAX? Should I add a ASP.NET website to my visual studio project? OR should I look to use javascript & AJAX in something like dreamweaver? I'm very new to programming so i only really have a bit of experience in vb.net.
I'm trying to make an app that will scrape numbers off of a webpage. What I want to do is have it read the Game Name and then Views (for statistics keeping). The WebPage is set up like
<tr class="odd"> here are 7 <td> tags that display different things </tr>
[Code]....
I'd like the app to check the second TD tag to see if it's innertext says, lets say, 'GAME', and then if it does, it adds the innertext of the 7th TD tag (which is a number), to the total sum, and it scrapes all of that info off the page.
I can understand the logic of how to process the info, but I have no clue as to reading the correct tags.
Im trying to scrape some text on a webpage, I asked in the regex section and they recommended to use HtmlAgilityPack with Xpath to scrape the info I want.
Ok so basically heres what i need to do: Extract text from the webpage that meets a certain criteria. There will be a ton of these on 1 page and i would like to add them to a rich textbox on sperate lines.
I know that it needs to be in a loop and its needs to Parse the wepage(Dim web1 As String = Me.WebBrowser1.Document.Body.InnerText)
The criteria is: Starts with 1 to 4(random) integers, Followed by "my" then 13(random) numbers and letters. Or if it starts with "167my" + 6(random) number and letters.
Edit: Also im going to try to make it loop through a list of webpages to do this.
I'm making a Windows Forms Application and in it I've placed a WebBrowser. When I try going to my homepage though, it says that JavaScript is not enabled. My question is, is it possible to import JavaScript? If so, how can I go about doing so?
My goal is to have the user be able to click the row and the row will be the selected row almost like having the select button but the entire row clickable to do the same thingthe error i get popups when i click the row, not when the webpage is loaded
this is the onrowdatabound portion i just added that causes the error If e.Row.RowType = DataControlRowType.DataRow Then ' Get reference to button field in the gridview.
was messing around with web controls and making auto login programs and I have been running across many websites that use java script to code their login boxes for some reason. I was wondering how might I edit the values and click on the sign in button if it is inside of javascript?
I am new to programming and trying to create an application to login to a website and download a report automatically. I am stuck at the login part. What i have so far:
I'm creating an application where I want to save a webpage to a file. The webpage has a Javascript function written into it. See below
<html> <head> <title>Javascript</title>
[Code]....
There is a reason for this. I will be required to retrieve data from a Javascript API. The API can only display data on the webpage and somehow I have to retrieve it from the webpage.
I'm using Visual Studio 2008 but with .Net Framework 2.0. Haven't tried out 3.0 or 3.5.
I'm using VB.NET 2008. I am building an application which had a webbrowser named "browser1". When I navigate a URL on it like [URL] it successfully loads the page. I am using the code to inject a javascript file in this page.
Dim mScript As HtmlElement Dim mHead As HtmlElement Dim jsPath As String jsPath = (SoftwareROOT.Replace("", "/")) & "/plugin.js"
[code]....
The code successfully creates the new element. But when it is trying to invoke script (the 2nd last line) then it fails to run the script.
Note: File path is OK.Code successfully works with a local page (like "c:est.html")."plugin_main" is a simple function of javascript alert().
I need to add a clock to a web page. The clock needs to be synchronized with a server but I really don't want to have it constantly check the server as the page will be open 24/7 on several PCs. Is there some way to get the time from the server and then use the systems clock to keep it updated and check the server every 15 minutes or so to keep it synced?
I'm trying to pull information from an XML webpage but for some reason it just isn't working. The XML webpage looks a little like
<?xml version="1.0" encoding="UTF-8"?> <item> <reqdat>Date and time</reqdate> <result>Completed</result> </item>
I want to get the node, but everything I've tried hasn't worked :( I think what I need to do might have something to do with SelectSingleNode but I'm not sure.
I am having a bit of trouble figuring out how to collect a piece of information from a web page. Here is the web page I want to retrieve the information from:
RuneScape - The Number 1 Free Multiplayer Game
I would like to retrieve the first "Price" of the item and collect the price every time I execute the code. I understand how to retrieve the source code of the webpage and split strings but how would I retrieve that price?
I want to extract a specific information from a webpage.For example:url...So can I make the software see what's between "<h1>Your IP address is<BR>", to "</h1>"?And doing all this by using the webbrowser form in Visual basic studio 2008.
I am trying to take specific information from a web page and then process that information so that it can be sent to a label or text box.Previously, I had wanted to do this by using Regular Expressions. I've looked around and it seems that using regular expressions to parse information isn't always the best way because website aren't always coded to standards.Regardless, learning regex isn't working out too well for me. So, I was wondering if there was another way to do this?I was thinking that I might be able to use the web browser control. It would be ideal to be able to see the page in the form, select the information, and then be able to display it.
I need to navigate to a webpage and copy a string of information from it within the shortest possible timeframe. The site has the following written on it:This is the string that you need to apply to your algorithm.
Generated String: 61*76*83*47*69*88*
I want to copy the string from the webbrowser control and place it into a string called "GenString"
As i'm learning more and more about developing ive just got my head around creating classes and modules, i started wondering about something to do with configuration of applications where deployment is in a more diverse environment say in a company where different branches dont need access to all parts of a program, so i thought id throw the question out there in a basic sense and get some feedback. so i can go off and do some more reading and learning.
So the scenario in my head is like this.
So we have for arguments sake FrmConfig which is the master configuration form, then we have FrmMain which is the root menu our application general user interfaces with. So here based on what options are checked as enabled in FrmConfig effects what controls (like buttons/menu options) are enabled in FrmMain.
I'm trying to make a small scraper can't figure out how what i want to do is scrape the <a href over the webpage I just navigated with webbrowser1.navigate now there are many <a href over the page i need to scrape all the <a href only this ones:
i need the code between "<a href=" and "><img is there a command to find a string in html after <a href=" and before "><img ? scrape all of them there are many and save it over txt file how can i do that?
I'm just starting working on a program and the amount of pages I'm trying to screen scrape take over 20 minutes, so I was hoping I could run like 4 or 5 threads to cut that down??? I'm pretty much still a novice, so be easy on me. I understand good, though.
I am developing a web program using asp.net(vb) that scrapes data of a certain website. I am using System.Net.HttpWebRequest and System.Net.HttpWebResponse.My problem is I can not retrieve the codes of certain frame/container where the data that I needed is located. I mean, when I view the source code of the website, I can not find the data but I can see it on the web page. When I view source it, it is under the
I am using a for next loop to scrape through some html code. I am testing elements for a certain string, and when it hits that, I need to get the string that resides 2 elements earlier.When going through a for...next loop (I know you can loop completely backwards with step -1), is there a way to 'go back' 2 loops? Ex)for each'lets say we are 5 loops in and our if returns true'can i go back to loop 3, perform an action, then return to loop 5 and continue the real loops?
I'm trying to make a small scraper can't figure out how what i want to do is scrape the <a href over the webpage I just navigated with webbrowser1.navigate now there are many <a href over the page i need to scrape all the <a href only this ones:
i need the code between "<a href=" and "><img is there a command to find a string in html after <a href=" and before "><img ? scrape all of them there are many and save it over txt file how can i do that?
I'm trying to scrape the right url from html file using webbrowser I want to scrape this Href and navigate to it. But the problem is every other comment with reply is almost the same. So if I use to scrape hrefs and check the name it will give me the reply buttons of all the comments + the new comment button. Is there a way to grab this link only this one by it's Class name or something?
<a href="forums.php?op=post&p=1409951"><img src="/images/icons/comment_add.png" class="inline_icon" align="top"> New Comment</a> The ones I don't need:
<a href="forums.php?op=post&p=1409971">Reply To This</a> I'm trying to create my own browser and this should be a button short cut If I want to comment.
I just got VB and I am having a hard time learning this stuff. but I am not giving up.I am looking to make a web text scraper, so I can scrape words off of webpages and put them into a text file.I couldnt find a whole lot of help in the search function. bare with me, I am new here and new to programing also.
see this codes scrapes all href links and check if it contains "/file/" to save it but I get duplicate links saved so If i can change this code to work some how with Innertext("More") I will have no duplicatestried to configure it to work with innertext it just doesn't fit the way I think it should ;/and if anyone can add how can I remove duplicated urls on my txt file that would be really nice I might need it
Dim links As System.Windows.Forms.HtmlElementCollection Dim b As String links = WebBrowser1.Document.Links
I have used Web Browser in VB to get the HTML source code of a web page and put it in a richtextbox. I need to take that HTML and extract the data needed from it. I have searched and cant find an example that I can understand being new to VB.Net I am trying eventually import the data into excel.
