Silverlight 4 datagrid cell click event?

Question

Hi all,

I want to know which event i can use for cell click in datagrid?

I want to display the value in that cell from the database query. and when clicking on that cell i want to show the second grid.

I am currently doing this using row click event. But now i want to use cell click event for 4 to 5 columns.

Thanks,
Deepika.