How to datagrid's cell click and display data in form

hello friends,

i create one desktop application,

in which i use many fields like , chalanno= textbox_chalanno, chalandate=dtp_chalandate,Itemname=txt_itemname,city=txt_city,state=txt_State.

now i can save data in database also display data in datagrid view.

note- i can add multiple Item in datagrid and then save multiple item in database and in datagrid.

i also put ItemNo in datagridview for autmatically create item number in datagrid when click on AddItem button.

now how can i retrive particular record in windows form using datagrid cell click event???

thank you.