Detail view in a grid view.

Hello developers ,
i am new in .net field and doing training in a company. so all you can say i am a fresher. 
Actually i made a grid view with a table name tbgrid and i added data in it.so now data is showing in localhost and edit ,update and cancel button is also working.
 Now i want to put a detail view with this grid view so a single data show in detail view and update and edit and cancel button also work with it.
this is my first post so do help me.
...