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.NET Forum / Languages / C# / March 2008

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Need an explanation rss xml

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Robert Bravery - 02 Mar 2008 17:47 GMT
HI all,

I am reading an rss feed using  linq.
When I save the xml to a file on disk I get:
(A),
but when I view therss feed in explorer and view source I get
(B).
THe <cfi: ...> tags are missing
Now I am a novice when it comes to theses things. Could someone explain the
difference

Thanks

Robert

(A)
<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0">
 <channel>
   <title>The PowerAlert South Africa Feed</title>
   <link>http://www.poweralert.co.za</link>
   <description>Power Alert South Africa RSS Feed</description>
   <language>en-us</language>
   <item>
     <title>National PowerAlert State Green Up @ 19:40, 2 March 2008
(local - GMT+2) - No load shedding currently.</title>
     <link>http://www.poweralert.co.za/poweralert3/slider.php?region_id=1</link>
     <description type="text/plain">Green Up - No load shedding
currently.</description>
   </item>
   <item>
     <title>Western Cape PowerAlert State Green Up @ 19:40, 2 March 2008
(local - GMT+2) - No load shedding currently.</title>
     <link>http://www.poweralert.co.za/poweralert3/slider.php?region_id=2</link>
     <description type="text/plain">Green Up - No load shedding
currently.</description>
   </item>
   <item>
     <title>Eastern Cape PowerAlert State Green Up @ 19:40, 2 March 2008
(local - GMT+2) - No load shedding currently.</title>
     <link>http://www.poweralert.co.za/poweralert3/slider.php?region_id=3</link>
     <description type="text/plain">Green Up - No load shedding
currently.</description>
   </item>
   <item>
     <title>Kwazulu-Natal PowerAlert State Green Up @ 19:40, 2 March 2008
(local - GMT+2) - No load shedding currently.</title>
     <link>http://www.poweralert.co.za/poweralert3/slider.php?region_id=4</link>
     <description type="text/plain">Green Up - No load shedding
currently.</description>
   </item>
   <item>
     <title>PowerAlert South Africa National State Advisory</title>
     <link>http://www.poweralert.co.za</link>
     <description type="text/plain">There is enough electricity available
at the moment. Please switch off non-essential appliances and
lights.</description>
   </item>
   <item>
     <title>PowerAlert South Africa National Load Shedding Advisory</title>
     <link>http://www.poweralert.co.za/poweralert3</link>
     <description type="text/plain">NO possibility exists that load
shedding may occur nationally within the next 24 hours. Visit
http://www.poweralert.co.za/poweralert3</description>
   </item>
 </channel>
</rss>

(B)
<?xml version="1.0" encoding="utf-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"
xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005">
<channel
xmlns:cfi="http://www.microsoft.com/schemas/rss/core/2005/internal"
cfi:lastdownloaderror="None">
 <title cf:type="text">The PowerAlert South Africa Feed</title>
 <link>http://www.poweralert.co.za/</link>
 <description cf:type="text">Power Alert South Africa RSS
Feed</description>
 <language>en-us</language>
 <item>
  <title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005"
cf:type="text">National PowerAlert State Green Up @ 19:20, 2 March 2008
(local - GMT+2) - No load shedding currently.</title>
  <link>http://www.poweralert.co.za/poweralert3/slider.php?region_id=1</link>
  <description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005"
cf:type="html">Green Up - No load shedding currently.</description>
  <cfi:id>5</cfi:id>
  <cfi:read>true</cfi:read>
  <cfi:downloadurl>http://poweralert.co.za/poweralert3/rss.xml</cfi:downloadurl>
  <cfi:lastdownloadtime>2008-03-02T17:24:55.453Z</cfi:lastdownloadtime>
 </item>
 <item>
  <title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005"
cf:type="text">Western Cape PowerAlert State Green Up @ 19:20, 2 March 2008
(local - GMT+2) - No load shedding currently.</title>
  <link>http://www.poweralert.co.za/poweralert3/slider.php?region_id=2</link>
  <description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005"
cf:type="html">Green Up - No load shedding currently.</description>
  <cfi:id>4</cfi:id>
  <cfi:read>true</cfi:read>
  <cfi:downloadurl>http://poweralert.co.za/poweralert3/rss.xml</cfi:downloadurl>
  <cfi:lastdownloadtime>2008-03-02T17:24:55.453Z</cfi:lastdownloadtime>
 </item>
 <item>
  <title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005"
cf:type="text">Eastern Cape PowerAlert State Green Up @ 19:20, 2 March 2008
(local - GMT+2) - No load shedding currently.</title>
  <link>http://www.poweralert.co.za/poweralert3/slider.php?region_id=3</link>
  <description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005"
cf:type="html">Green Up - No load shedding currently.</description>
  <cfi:id>3</cfi:id>
  <cfi:read>true</cfi:read>
  <cfi:downloadurl>http://poweralert.co.za/poweralert3/rss.xml</cfi:downloadurl>
  <cfi:lastdownloadtime>2008-03-02T17:24:55.453Z</cfi:lastdownloadtime>
 </item>
 <item>
  <title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005"
cf:type="text">Kwazulu-Natal PowerAlert State Green Up @ 19:20, 2 March 2008
(local - GMT+2) - No load shedding currently.</title>
  <link>http://www.poweralert.co.za/poweralert3/slider.php?region_id=4</link>
  <description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005"
cf:type="html">Green Up - No load shedding currently.</description>
  <cfi:id>2</cfi:id>
  <cfi:read>true</cfi:read>
  <cfi:downloadurl>http://poweralert.co.za/poweralert3/rss.xml</cfi:downloadurl>
  <cfi:lastdownloadtime>2008-03-02T17:24:55.453Z</cfi:lastdownloadtime>
 </item>
 <item>
  <title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005"
cf:type="text">PowerAlert South Africa National State Advisory</title>
  <link>http://www.poweralert.co.za/</link>
  <description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005"
cf:type="html">There is enough electricity available at the moment. Please
switch off non-essential appliances and lights.</description>
  <cfi:id>1</cfi:id>
  <cfi:read>true</cfi:read>
  <cfi:downloadurl>http://poweralert.co.za/poweralert3/rss.xml</cfi:downloadurl>
  <cfi:lastdownloadtime>2008-03-02T17:24:55.453Z</cfi:lastdownloadtime>
 </item>
 <item>
  <title xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005"
cf:type="text">PowerAlert South Africa National Load Shedding
Advisory</title>
  <link>http://www.poweralert.co.za/poweralert3</link>
  <description xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005"
cf:type="html">NO possibility exists that load shedding may occur nationally
within the next 24 hours. Visit
http://www.poweralert.co.za/poweralert3</description>
  <cfi:id>0</cfi:id>
  <cfi:read>true</cfi:read>
  <cfi:downloadurl>http://poweralert.co.za/poweralert3/rss.xml</cfi:downloadurl>
  <cfi:lastdownloadtime>2008-02-28T07:54:09.055Z</cfi:lastdownloadtime>
 </item>
</channel>
</rss>
Reply to this Message
Martin Honnen - 02 Mar 2008 18:18 GMT
> I am reading an rss feed using  linq.
> When I save the xml to a file on disk I get:
[quoted text clipped - 4 lines]
> Now I am a novice when it comes to theses things. Could someone explain
> the difference

How exactly do you save the feed? With an application like IE? Or with
C# code? How does that code look?

Is the URL of the feed
<URL:http://poweralert.co.za/poweralert3/rss.xml>? I have looked at that
feed with Firefox 2.0 and IE 6 and view source does not show any
cfi:elements. Maybe the cfi:elements are added by a feed reader.

Signature

    Martin Honnen --- MVP XML
    http://JavaScript.FAQTs.com/

Reply to this Message
Robert Bravery - 02 Mar 2008 18:53 GMT
Hi Martin,

I use:
rssFeed.Save(string.Format("{0}/rssSave.xml",
"D:/DataStore_WebSites/WowDev470" + TemplateSourceDirectory));

Robert

>> I am reading an rss feed using  linq.
>> When I save the xml to a file on disk I get:
[quoted text clipped - 12 lines]
> not show any cfi:elements. Maybe the cfi:elements are added by a feed
> reader.
Reply to this Message
Martin Honnen - 02 Mar 2008 18:32 GMT
> <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"
> xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005">
[quoted text clipped - 18 lines]
>  
> <cfi:downloadurl>http://poweralert.co.za/poweralert3/rss.xml</cfi:downloadurl>

I think the cf and cfi elements and attributes are part of Internet
Explorer 7's RSS feed handling.

Signature

    Martin Honnen --- MVP XML
    http://JavaScript.FAQTs.com/

Reply to this Message
Robert Bravery - 02 Mar 2008 18:54 GMT
Hi,

Ok that seems to make sense as to why I cant see that in my app.

Robert

>> <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"
>> xmlns:cf="http://www.microsoft.com/schemas/rss/core/2005">
[quoted text clipped - 21 lines]
> I think the cf and cfi elements and attributes are part of Internet
> Explorer 7's RSS feed handling.
Reply to this Message

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