Is this really the version you are looking for? Kentico Xperience 12 Service Pack Documentation is no longer updated. Use the switcher in the header to choose your product version.
Syndication web parts render feeds according to transformations. You need to set the Transformation property of each feed web part.
You can generate the default RSS, Atom and XML transformations when editing transformations of a page type or a custom table. Click ... next to the Generate default transformation button and select the appropriate format.
Additional feed transformations are available in the RSS transformations (CMS.RSSTransformations) page type. This is a container page type used to store RSS transformations for Kentico objects, such as blog comments, board messages, forum posts, media library files and products.
If you need to include CDATA (opens in a new tab) sections in your feeds, you can use the EvalCDATA method. This method works in a similar manner as the standard Eval method. The difference is that the retrieved string is wrapped in a CDATA section and all occurences of the ]]> character sequence in the string are escaped.
Escaping is performed by replacing each occurrence of ]]> with ]]]]><!CDATA[> and the whole text is then wrapped in a standard <![CDATA["***wrapped text***"]]> enclosure.
The method has two overrides:
The second override with the second parameter set to false is particularly useful if you use the method within another CDATA section. Because nesting of CDATA sections is not possible, you only want to have the retrieved string escaped, but not wrapped in the enclosure. The code example below is a transformation extract where the method is used exactly this way.
...
<description>
<![CDATA[
<strong><%# EvalCDATA("CommentUserName",false) %></strong><br /><%# EvalCDATA("CommentText",false) %>
]]>
</description>
...