Live Scrolling via Ext’s LiveDataPanel Widget

A LiveDataPanel can enhance your site by deferring the load of additional content until the user is ready to see it. Markup will never be generated unless it’s needed and therefore the browsers DOM will have a smaller footprint. Take a look at DZone for an example.

It’s important to remember to use this component where approriate, because it will load every record into memory and render that record’s markup to the browser. By building upon Ext’s foundation classes, we were able to create a useful component without having to do a lot of the lower level work.