How to add multiple control in datagridviewcell

Hi,

I am making a appointment calendar application. (Calender with big Squares)

To create calendar I have used datagridview.

In this application, event will be added on selected Cell/date and will display that event in calendar

for that i have to add control in selected datagridview cell but i did not succeed to add cell

If you have any suggestion for how to add multiple control in one/selected datagridview cell, it will most helpfull to me

Thanks in advance