how to store formatted data in database in asp.net c#

Question

helo sir,
i would like to store formatted input in database.
for example

Day01 : some text
Day02: some text

 i m using asp 4.0 and sql server 
i have used multiline textbox but , i have to store it as above..
so my problem is ,sholud i use the worpad editor in my site just like typing here.
i have to store as above given text.
pls help 
thanx