download a webpage with vb.net or C#

not so fast there is a hard part to all this.

Yes I need to download a webpage in vb.net, however I need to simulate a postback before I download the content. I need to simulate the selection of a dropdown list to choose the value 100.

Once that is chosen I want to download the content of the page that would be rendered after the postback is complete.
 
So the recap is that I have a website I need to be able to download on an interval. However the problem is that I need to simulate a postback on the server to tell it to list 100 per page. This is done through dropdown, you can see the markup for the dropdown below.

Thanks in advance

<select name="DropDownList1" onchange="__doPostBack('DropDownList1','')" language="javascript" id="DropDownList1">
	<option selected="selected" value="15">15</option>
	<option value="25">25</option>
	<option value="50">50</option>
 
	<option value="75">75</option>
	<option value="100">100</option>
 
</select>&nbsp;&nbsp;</TD>

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talker2004Asked:
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wht1986Connect With a Mentor Commented:
Havent done it myself, but this bloke seems to have gotten an example working using the WebRequest/WebResponse objects

http://romiller.com/Home/tabid/36/EntryID/40/Default.aspx
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