How to display entire directory(Filesystem)

[yogeshgokul]

For directory structure data you need to use QDirModel. This model will give you data for underlign file structure. And you can use QTreeView to display that in the left pane of your desired application.
On right habd pane you need to use QTextBrowser/QTextEdit/QSimpleTextBrowser.
See this example:
http://doc.trolltech.com/4.5/itemviews-dirview.html