update data from internet

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I want to create a C# program that has list box and button, when I click button it update list box with data from file
something like this:
http://www.up.iranblog.com/images/yqadtgtg0ikq9qcg9m0u.rar
please help me

Posted 17-Jul-11 23:09pm

Member 7904482

Updated 17-Jul-11 23:24pm

v2

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Abhinav S 18-Jul-11 5:13am

Did you try something?

Member 7904482 18-Jul-11 5:16am

not yet

OriginalGriff 18-Jul-11 5:42am

Well, there's your problem!

2 solutions

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-07-18T07:36:00

You need to use the class System.Net.HttpWebRequest. To create one, you need to use the compile-time variable of the class System.Net.WebRequest and its static factory method Create, as the run-time type is defined by the URI. You System.Net.HttpWebRequest.Method should be "GET".

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

—SA

Richard MacCutchan · Answer 2 · 2011-07-17T23:44:00

Solution 1

Assuming you have a version of Visual Studio, then you should at least have a Form containing a Listbox and Button with some event handling code. You will then need to write some more code to receive your data, parse it if necessary, and populate your listbox. I would guess you will be using a WebBrowser[^] control to get access to your internet data.

Posted 17-Jul-11 23:44pm

Richard MacCutchan

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Sergey Alexandrovich Kryukov 18-Jul-11 13:37pm

Why using WebBrowser? What to do with it? OP simply needs System.Net.HttpWebRequest to do Web scraping.

Please see my solution.
--SA

Richard MacCutchan 18-Jul-11 14:31pm

I'm just giving pointers. If OP really wants to make progress then he/she really needs to learn to do some research, and that seemed a good enough place to start from.

However, I think your suggestion will be useful for me, so I'll add a 5 for you.

Sergey Alexandrovich Kryukov 18-Jul-11 14:37pm

Thank you very much. You would be completely right if you did not mention WebBrowser at all -- this is misleading as this is not really needed and puzzling.
--SA

Richard MacCutchan 18-Jul-11 14:47pm

Yeah, I made a screen scraper using WebBrowser, so I now need to take your suggestions and rework my program. As you may guess, screen scraping is a new subject for me.