How to design a matrix control in asp.net

[MSK]

Hi

I am trying to design a small WEB application to track the employees
holiday/leave details using .Net technologies ( ASP.NET/ SQL server)

The following are my ideas...

in a web page

- User can select the year/month and
- I want to the have the following header info in a list control (like
Datagrid, list view ...etc), and populate based on the month value


- ROW header, the first row - should show all the months (Jan,
Feb,....Dec)
- Column header, the first column - should show the dates
( 1,2,3....31)
- Column header, the second column - the leave session (morning or
afternoon) for each date

_______________ _______________ _______________ ____
Jan | Feb | Mar ..............
| Dec
_______________ _______________ _______________ ____
1 Morning
-------------------------------------------------------------------------------------
Afternoon
_______________ _______________ _______________ ____
2 Morning
-------------------------------------------------------------------------------------
Afternoon
_______________ _______________ _______________ ____
3 Morning
-------------------------------------------------------------------------------------
Afternoon
_______________ _______________ _______________ ____..
...
...
31
_______________ _______________ _______________ ____
(just imagine this grid has vertical lines which makes cells for each
entry)

- Reason type in a dropdown list box
- User can click the cell - to enter a leave entry based on the
matrix, based on the reason I want to change individual cell
background color
- Save button to save the entry

(After this - there are lot to do - like email notification,up dating
calendar, approval from the manager) which I can do easily

but I need to know how to design a list box to show the matrix values
[like the above] also I don't know which control will be helpful
[datagrid, listview..etc] ? can my requirements [like changing each
cell value] be achievable ?

Thanks
MSK