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Hyperlink asp control doesn't appear when set

Hi, I've got an XML file with one <title> and one <link> attribute.
What I want to do is implement a hyperlink with the name of the <title> element and whose NavigateUrl property is set to the <link> element.

For an unusual reason, the hyperlink never appears but, when debugged, both items from the XML file are appended to the hyperlink. What have I done wrong?

Cheers,
Matt

Expand|Select|Wrap|Line Numbers
  1. private void ReadXML()
  2.     {
  3.         using (StreamReader sr = File.OpenText(xmlFile))
  4.         {
  5.             while (!sr.EndOfStream && sr.Read() > 0)
  6.             {
  7.                 string line = sr.ReadLine();
  8.                 if (line.Contains("<title>"))
  9.                 {
  10.                     // read until we reach </title>
  11.                     HyperLink4.Text = line.Replace("<title>", ""); // read until <title>
  12.                     HyperLink4.Text = line.Replace("</title>", ""); // read until <title>
  13.                 }
  14.                 // link should follow straight after
  15.                 else if (line.Contains("<link>"))
  16.                 {
  17.                     HyperLink4.NavigateUrl = line.Replace("<link>", "");
  18.                     HyperLink4.NavigateUrl = line.Replace("</link>", ""); // read until <title>
  19.                 }
  20.             }
  21.         }
  22.     }
  23.  
Mar 20 '10 #1
4 2349
jkmyoung
2,057 Expert 2GB
Could you post your input and expected output?
It looks like you have something like
<title>Search</title><link>http://www.google.ca</link>
Which ends up being:
Searchhttp://www.google.ca

Did you want your output in html link form, eg
<a href="http://www.google.ca">Search</a>
or some other different form?
Mar 22 '10 #2
Sure, my input is:

<rss version="2.0" xmlns:media="http://search.yahoo.com/mrss/"><channel>
<title>BBC News | UK | UK Edition</title>
<link>http://news.bbc.co.uk/go/rss/-/1/hi/uk/default.stm</link>

<item>
<title>Clegg bids to cool coalition talk</title>
<description>Nick Clegg is to say he is "not the kingmaker" amid speculation about the Lib Dems' possible role in a coalition government.
</description>
<link>http://news.bbc.co.uk/go/rss/-/1/hi/uk_politics/8566448.stm</link>
</item>


An I expect my output to be:

BBC News | UK | UK Edition

http://news.bbc.co.uk/go/rss/-/1/hi/uk/default.stm

Clegg bids to cool coalition talk

Nick Clegg is to say he is "not the kingmaker" amid speculation about the Lib Dems' possible role in a coalition government.

http://news.bbc.co.uk/go/rss/-/1/hi/...cs/8566448.stm

---------------------------
I guess HTML form would be more flexible than an asp:Hyperlink object but it doesn't really matter, I just want to turn the titles within the file into hyperlinks which the user can use to go directly to the report
Mar 22 '10 #3
jkmyoung
2,057 Expert 2GB
Ah, I see, the problem is that you're overwriting it. eg, you'd get

Text = "BBC News | UK | UK Edition</title>" with <title> removed, then
Text = "<title>BBC News | UK | UK Edition" with </title> removed.

Expand|Select|Wrap|Line Numbers
  1. string line = sr.ReadLine(); 
  2. int i = line.IndexOf("<title>");
  3. int j = line.IndexOf("</title>");
  4.  
  5. // If you have a multi-line title, this won't deal with it.
  6. if(i != -1 && j != -1)
  7. {
  8.   HyperLink4.Text = line.Substring(i, j-i);
  9. }
  10.  
and do the same thing with link.

You are assuming each element only comes on one line each, correct?
Mar 22 '10 #4
It's OK, I've solved this by using a better a approach - using Repeaters, Literals and Hyperlinks.

For the benefit of newbies to rss, just like me, this is the site I used:

http://www.wduffy.co.uk/blog/how-to-.../#comment-5101
Mar 24 '10 #5

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