VS 2008 Extracting Information From 'database' (?) Behind Website?
Feb 3, 2010
My university has a website that students can use to check stuff like their lesson schedules, latest grades, exam times, etc. Just general information about you and your study (after you have logged in of course).For interested, this is the website (not much use without a login obviously, but still): [URL]I have been thinking lately that it would be nice to have a desktop application that could give me the same information. However, I have absolutely no idea how that would work, and whether or not it is even possible. I mean, technically it should be possible for me to get the information (how else does the website get it) provided it is not secured (even when using the correct login details). I am sure the website communicates with a database somewhere. Does that mean I could theoretically also communicate with the database (probably: read from it only, not write) for example by executing queries?If that is possible, how do I figure out which queries to use for the different pieces of information? Obviously I don't know the details of the database so I can't just send a random query and expect it to work...
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Dec 20, 2010
I want to extract some information from a web site (Bloomberg). This side has a search textbox with a onKeyUp event that, as far as I can understand, uses AJAX to create a table. Is it possible to insert some text in the textbox and then get the table created with AJAX? Given the source code of the page with the tabled already AJAXed (If you understand what I want to say here), I can easily retrieve the table. I just need to get the source code with the table already on it.
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Oct 20, 2009
All I've been able to do is create the form. We have to get information off of a website and load certain information back into the textboxes on our form.
Assignment 6 - Text Parsing Many applications require you to extract information from a block of text. We will be using this heavily in the project. This project is designed to give you some practice extracting information out of text files. You will need to open up a file, search the file for some specific content, and then copy that content and place it on screen.
Go to Jobs.com and select a state that starts with the same letter as your last name (if there is no state that starts with the same letter, use the second letter, then the third letter, etc.). For example if my name was 'John Byway', since there was no B or Y, I would pick a state starting with W - either Washington, West Virginia, Wisconsin, or Wyoming.
The idea is you want to extract all the jobs information out of the page. We want to put the jobs names in a combo box, so the use can pick any of the jobs. Ideally, this would also show the information about each job. You don't need to do that. However, you do need to extract the information and put it on the screen (When you load the next job, the old job information will be lost, and you will be left with the information about the last job loaded)
Tasks
1. Go to the above address, view the source in the browser, copy and paste it into a text file. You do not need to access the Source of the web page within your application.(in IE go to View / Source; In FireFox go to View / Page Source)
3. Extract each job title and place the name in the Combo box.
4. Find and extract the following fields. Note, some jobs may not list all of these. In that case, get as many as are presented.
a. Date
b. Title of job
c. Company
d. Location
[code].....
Indicate on screen how many jobs you found. Note, you only need to look on the first page of jobs?
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May 10, 2009
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.
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Oct 2, 2009
The method I'm currently using to extract html and the parse is via a WebBrowser control. I'm grabbing a collection of tags, sorting through the ones I want, and then pulling the innertext.
Doing this on my development machine is kind of slow, but manageable. At max, I can go through 60 different web pages across 3 different sites. It takes about 5 mins on my machine.
However, this app is targeted towards machine that have a quarter of the technology that my computer has. So, it takes anywhere from 10-15 minutes. This is less than ideal.
Does anyone know of any other method that I could do that would take less resources and perform a lot quicker?
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Aug 16, 2009
I'm currently using a webbrowser control to extract information from multiple websites. At any given time, my application could be searching through 1-80 different webpages across 1-4 different websites. On my computer, it runs pretty quick. I could go through all 80 sites in just a few minutes. But when on another machine with fewer resouces, it runs awfully slow. Taking up to 15 minutes. Which kind of beats the purpose, but not entirely, of my application.
I'll begin by explaining my methods, and go from there. When utilizing the Webbrowser control, I use While statements and Application.DoEvents, instead of the Webbrowser controls's DocumentCompleted event. I'm wondering if this is one thing that could be slowing down the process. Though I'm not sure why it would be. Also, would utilizing separate threads help with this? I can't imagine it would boost performance. But I'm not entirely sure. I think it bogs down because the application uses so much memory when running. On idle, the application uses about 9.5k memory. When running, I've seen it go as high as 110k.
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Nov 1, 2009
I'm trying to get the version of IE and Google Chrome from the registry. I've successfully been able to get IE, but it seems chrome is eluding me.The following code is what I'm trying:
vb.net
Public Sub ChromeVersion()
Dim SoftwareKey As String = "HKEY_CURRENT_USERSoftwareGoogleUpdateClients{8A69D345-D564-
[code].....
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Jun 16, 2010
I am trying to grab a small piece of information from imdb. Using Toy Story 3 at this link: [URL] It currently has a rating of 9.4. Now what I am trying to do is grab that 9.4/10. It is within the following html code.
[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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Jun 12, 2011
I have a form that has 5 text fields...
TextField1
TextField2
TextField3
TextField4
TextField5
I need to automatically input those fields into a website via a button. The Website link is http://192.168.2.23
-Next i have to click login
-enter a password Admin00 and select ok
-Click on Basic
[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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Nov 26, 2009
how to find something on a webpage and then put it into my vb form. Like pulling the name of someone from [URL] and posting it into a textbox.
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Oct 2, 2009
The method I'm currently using to extract html and the parse is via a WebBrowser control.I'm grabbing a collection of tags, sorting through the ones I want, and then pulling the innertext.Doing this on my development machine is kind of slow, but manageable. At max, I can go through 60 different web pages across 3 different sites. It takes about 5 mins on my machine.
However, this app is targeted towards machine that have a quarter of the technology that my computer has. So, it takes anywhere from 10-15 minutes. This is less than ideal.I've bee reading up on the documentation on HTTPWebRequest. However, form what I've seen I can't seem to find a way to grab the HTML and then parse it with a method from HTTPWebRequest.
Due to the way I'll be using it, I won't be able to use RegEx to parse the data and was hoping there was a method within the HTTPWebRequest property to do it.
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Jul 4, 2011
I have the following text, it displays like this in a textbox, but is all stored in one string:
[Code].....
But I cant think of a way to do it, the only thing I can think is to try and grab the text on the line after each "+CMGR:"
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Feb 19, 2011
I have a lot of information distributed among some tables in a database (and must likely it will all be represented into oop). I will need to create text files with different formats from the same data depending on the request. My idea is to create a design that will require no coding if such formats are to change of be added.I was thinking in using some sort of XML magic trick to accomplish this but I have no idea how to. I am also open to new ideas.
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Nov 7, 2009
I was just wondering how to extract or parse any particual tags (whichever I specify) from webpages. I know how to extract text and links from webpages, but I tried to use the same method from the following code for div tags, title tags etcetera and it doesn't seem to work:
[Code]...
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Feb 5, 2011
I'm trying to identify a specific string within a text file, and then extra a couple of bits of information that follow from that.
Example snippet from text file:
>Date 5.3: Tech Manual {30201}
Freya Plumes (30201) - 1
mu
These are made from brightly coloured. I want to be able to find where it says "Tech Manual", and then assign "Freya Plumes", "30201" and "1" to variables for manipulating and exporting to another file. There will be many instances from the same text file with similar information, so I'd need the extracted strings popped into an array for later referencing.
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Feb 25, 2009
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.
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Aug 18, 2010
I'd like to look into extracting EXIF tags/data from jpg images. I've looked around but can't seem to see any simple example. Anyone able to point me into the direction of pulling out the model/date values etc out of EXIF data?
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Mar 13, 2010
how can i get in a program (made in VB.net 2008) the information from a website? I mean that, how can i get the currency from a web site, and put to my program?
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Jul 7, 2010
I have an asp.net webpage that only contains a textbox and a button. The user submits their email address using this webpage.What I am trying to do now is take the information submitted by the user and go to another website. Where my "website/program" gives the different website the entered email address, and clicks the submit button.
If I where to physically go to the different website, there would be a textbox to enter the email. But since I am accessing the website from my page "behind the scenes" I cant manually enter their email address.Is it possible to do this, if so how? Also, my code behind is in VB.
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Sep 21, 2009
I wanted to make a program where it will retrieve data from websites I use regularly and display important parts to me such as my horoscope, friends online, new emails etc. I'm just having a problem figuring out how to get visual basic to display the website information.
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Oct 10, 2011
How can we read information from a website to my vb form.
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Sep 21, 2009
I want to connect to an MySQL database on the website, I want to write and retrieve information from that database into a table on my program.
Can anybody link me to a tutorial on how to do this? Or give me some insight, I'm relatively new to Visual Basic (7 months) and I'm not exactly sure on how to do this.
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Mar 10, 2010
Public Class ReceiptSpectacles
Private Sub ReceiptSpectacles_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code].....
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Mar 31, 2011
I have had a few programming courses in college, but I'm far from a VB expert. I work at a bank and I want to copy information off of webpages and put it into an Excel worksheet. I created a macro that automatically opens up Internet explorer -- but really what I need is a subroutine (or a method) that copies information from 1.1Million records / screens and places the information into MS Excel.There are 1.1M records, so ideally-- I like it to copy all information over a weekend and come in on Monday and be done. At the very least, I would like a macro that can run off of a shortcut and copy all information on a webpage and puts information into each respective cell. Ie. copies the name field and puts into the name cell in Excel... address field into the address cell in Excel.
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Jul 16, 2011
on my form i have a button and five textboxes... when i click the button it takes me to a website. on this website is a list of five items. i want to take these five items and place them in the 5 textboxes. up to now what i have been doing is highlighting the first item in the list on the website, right clicking and using the copy feature, then going back to the vb form and pasting the first item in textbox1... then go back to the website and highlight item two... return to the form and paste in textbox2.. then the same procedure for the next three items
is there a way to highlight all five items from the website, right click, select copy and then paste the information into the 5 textboxes on the form... one in each of the textboxes provided without doing it one at a time
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Apr 1, 2011
how can i enter information into textbox on website
WebBrowser1.Document.GetElementById("username").SetAttribute("value", "TextBox1")
keeps on telling me nullrefrence unhandlded?here is the source of my page
<input type="text" class="login_textbox" name="username" id="username" tabindex="1">
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Apr 11, 2009
Not sure if this is possible at all. I was hoping somebody could help point me in the right direction. Right now im not quite sure what to search for or what this would be called. Basicly I was wondering if it is possible to design a application in vb.net 2008 that could search a website for specific information.
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Feb 8, 2012
I am writing an app which gets information from a website. Basically I load the webpage into a webbrowser control and parse the document text for what I need.
My problem is: I have a German version of windows. The webpage returned has the German version of the webpage. I require the English version but there is no way of specifying the language in the URL, so it must be picking up the default language of my operating system. How can I override this, is there a property of the Webbrowser control which I can set?
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