Retrieving Data from Web Page in Visual Basic

Question

2.00/5 (1 vote)

See more:

Is there a way, in Visual Basic, to pull a piece of data (for example, a number) from a webpage that is generated entirely with JavaScript and HTML? I want to create a way for my application to find updates on the internet, and I want to find out if this is a good way to do it.

Posted 18-Mar-12 17:17pm

drummerboy0511

Add a Solution

Comments

Sergey Alexandrovich Kryukov 18-Mar-12 23:25pm

So, VB.NET or VB? They are different things?
--SA

drummerboy0511 18-Mar-12 23:37pm

Well, any version of VB from VB.NET onward...

Sergey Alexandrovich Kryukov 19-Mar-12 0:56am

I answered for .NET, so you can use VB.NET. I don't even want to discuss VB. And it has nearly nothing to do with VB.NET. I cannot imagine you want to support both...
--SA

drummerboy0511 21-Mar-12 23:49pm

I don't... I stopped using VB a long time ago. Thank you for answering, by the way.

Sergey Alexandrovich Kryukov 22-Mar-12 0:08am

You are welcome.
If you agree my answer makes sense, consider accepting it formally (green button) -- thanks.
--SA

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Sergey Alexandrovich Kryukov · Accepted Answer · 2012-03-18T17:28:00

Solution 1

This is called Web scraping, please see: http://en.wikipedia.org/wiki/Web_scraping[^].

With .NET, you need to use the class System.Net.HttpWebRequest, please see:
http://msdn.microsoft.com/en-us/library/system.net.httpwebrequest.aspx[^].

See some code sample here:
http://msdn.microsoft.com/en-us/library/system.net.webrequest.aspx[^].

—SA

Posted 18-Mar-12 17:28pm

Sergey Alexandrovich Kryukov

Comments

drummerboy0511 24-Mar-12 20:44pm

Thank you!

Sergey Alexandrovich Kryukov 24-Mar-12 22:51pm

You are very welcome.
Good luck, call again.
--SA