How do I add custom hyperlinks to a webpage - asp.net

Question

I want to add a hyperlink to a social bookmarking site om my webpage which requires me to include the name of the page it is being sent from.
Example of what I am trying to achieve:
Current page is:
http://www.testpage.com/testpage.aspx?test=34
Hyperlink I want to create on the above page:
http://www.stumbleupon.com/submit?url=http://www.testpage.com/testpage.aspx?test=34
What is the easiest way to programmatically add this customised hyperlink to a webpage?

Answer 1

Assuming that you have a hyperlink like that :
<asp:HyperLink runat="server" ID="myLink" Text="stumbleupon"></asp:HyperLink>
At server side :
string currentPagesUrl =
HttpUtility.UrlEncode(HttpContext.Current.Request.Url.AbsoluteUri);
myLink.NavigateUrl = string.Format("http://www.stumbleupon.com/submit?url={0}",
currentPagesUrl);
Or an alternative way (this one is easier I think) :
<a href="http://www.stumbleupon.com/submit?url=<%= HttpUtility.UrlEncode(HttpContext.Current.Request.Url.AbsoluteUri) %>" target="_blank">
stumbleupon 2</a>

Answer 2

I second Canavar's answer. You might want to also URL encode the currentPagesUrl string when building the hyperlink:
myLink.NavigateUrl = string.Format("http://www.stumbleupon.com/submit?url={0}",
Server.UrlEncode(currentPagesUrl));

Answer 3

Using jQuery:
$(document).ready(function(){
$("a.stumblethis").each(function(){
$(this).attr("href", "http://www.stumbleupon.com/submit?url="+$(this).attr("href"));
});
});
This will convert all links that have a class of "stumblethis".