Here’s another try with Flex Builder 3 beta. It shows my RSS feed in a datagrid, and when selecting one of the rows, the corresponding blog-entry will be show on the right. When clicking in on the title in the datagrid, the blog-entry will be opened in the current window, basically replacing the Flex application. This was just to test a custom itemrenderer (LinkButton) inside a datagrid. The date-column can be sorted, but not in the default Flex way (string-based), but via Actionscripting it sorts by date.
Basically what I created was a very simple RSS reader, with this exception: it only reads my weblog 😉
The right part makes use of an IFrame to render the HTML output. Read here how to do that.