Sometimes the source code of dynamic contents (like those rendered by AJAX) of a web page cannot be viewed by IE "View Source".
Solution 1
Use Firefox to view the source code of a certain part of dynamic contents by the following steps:
1. Highlight a certain part of dynamic contents
2. Right click
3. Select "View Selection Source"
Solution 2
Use IE to view the source code of the entire page by entering the following JavaScript in the address bar:
javascript:’<xmp>’ + window.document.body.outerHTML + ‘</xmp>’