need Ans urgently.

(13) Question no 4 These are the given buttons in above library Project. (a) Write a piece of code that will move record of DataGrid View Control backward. (b) Write a piece of code that will move record of DataGrid View Control forward. (c) Write a piece of code that will move record of DataGrid View Control at the start. (d) Write a piece of code that will move record of DataGrid View Control at the end