wordpress like functionality to edit content of pages

Hi,

I am looking for functionality where in i will be able to give user a option to edit content (including HTML) of a page on the fly.

I should work like a back-end option given to wordpress. Where all pages are listed and when click on edit page user can able to view the page in two ways either in plain text mode or with html tags.

I want to write all changed contents to that particular page itself instead of saving it to database and retrieving it.

Can anybody suggest how to do this in asp.net

Kind Regards,
Jay