Some question in Web Development in asp.net using C#

Question

I have some qns to ask you guy in this can be done in Web Development in asp.net using C#.
I am not so good in some thing and try to slove so please help me out


1) I have a message button (like facebook) and this button have to show the name of message that this use have those that unread (e.g I have 8 message unred message and will show 8 in the button). (If this can be done how can I do that)

2) Want I open the message the button that show how many message you have will take away one (e.g I have 89 unread message and I have open so I will show 88). (If this can be done how can I do that)

3) If I want to sent an message to othe user it can only sent to those user name in the database
e.g I have those username
Girls
boy

I can only sent to girls or boy or the sent text will only show this two name.


If those can be done by C# can it be done in asp.net?