Introduction
There are many ways to display data. When we have the data then we need some control that can display it, but chosing the right control will give better performance. Let's discuss about displaying an RSS feed using XSLT
Basics of XSLT:
The extended style sheet language
transformation is a language which has statements like in other languages
which helps the developers to display in the convenient format. XSLT is used
to convert the XML data into graphical format. This can use the CSS, HTML and
Javascript.
Display RSS Feed content:
The RSS feeder gives the data in the
XML format that needs to be converted in the graphical output. Which is
lightweight and it can be designed table or table less (css) layout.
Most of the RSS feed output gives
the standard format and can be frequently updated and it will returns thetop
update to their followers. The data has to be read from the link and the XML data will be converted to XSLT.
<xsl:for-each select="rss/channel/item">
<tr style="color:#0080FF;">
<td style="text-align:left;font-weight:bold;">
<xsl:value-of select
="title"></xsl:value-of>
</td>
<td style="text-align:right;font-weight:bold;">
<i><xsl:value-of select
="author"></xsl:value-of>
</i>,
<xsl:value-of select="pubDate"/>
</td>
</tr>
<tr>
<td colspan="2" style="text-align:left;padding-top:10px;">
<xsl:value-of select="description"/>
</td>
</tr>
<tr>
<td colspan="2" style="text-align:right;">
<a href="{link}" rel="bookmark">
More...
</a>
</td>
</tr>
<tr>
<td colspan="2" style="height:20px;">
<hr></hr>
</td>
</tr>
</xsl:for-each>
XSLT has the for loop statement
which can be used like in other languages.
<rss version="2.0">
<channel>
<title>C-Sharpcorner
Latest Articles</title>
<link>http://www.c-sharpcorner.com/</link>
<description>Watch
articles from C# Corner</description>
<copyright>©
1999 - 2011 Mindcracker LLC. All Rights Reserved</copyright>
<item>
<title>Joins
Using LINQ in C#</title>
<description>Today,
in this article we will see how to perform join operation using LINQ queries. I
have created two tables in database named 'Candidate'. The first table name is
Employee. the second table name is Student. I have used LINQ to SQL to
communicate with database. </description>
<link>http://www.c-sharpcorner.com/UploadFile/54db21/joins-using-linq-in-C-Sharp/</link>
<pubDate>12/13/2011
3:08:33 AM</pubDate>
<author>Vijay
Prativadi</author>
</item>
<item>
<title>Simple
Arithmetic Operation using WCF Service Hosted on WebApp</title>
<description>Today,
in this article we will try to perform simple arithmetic operation importing
some created service into our web application. Once the application is fully
developed we can request values from our web form which retrieve the output by
performing an expected operation to the values specified by the service.
</description>
<link>http://www.c-sharpcorner.com/UploadFile/54db21/simple-arithmetic-operation-using-wcf-service-hosted-on-weba/</link>
<pubDate>12/13/2011
2:41:30 AM</pubDate>
<author>Vijay
Prativadi</author>
</item>
<item>
<title>Print
in C#</title>
<description>Here
is a good list of resource related to printing in C# using GDI+.</description>
<link>http://www.c-sharpcorner.com/UploadFile/mahesh/print-in-C-Sharp/</link>
<pubDate>12/12/2011
3:19:54 PM</pubDate>
<author>Mahesh
Chand</author>
</item>
</channel>
</rss>
It will keep on iterating the XML data and traverse through all the specified nodes. The value-of statement is used to read the
text in the specified node. The format of display can be designed through HTML.
Sample Screen
Conclusion
The xml data can be directly used to
display the graphical data. It can be designed like Grid, List, etc., It do not
have the bubbled event or any other event. It will render quickly and improve
the performance.