Delete Rows in Windows Forms DataGridView using C#

Sir,

I have used data grid view to display records in windows application columns ( StudentID, StudentName, Father'sName, Standard).

and placed a delete button on the form. I want to delete record according to StudentID, when I select on any cell in datagridview and click on delete button it should get the StudentID for that selected row and delete the record based on that row's StudentID.

any suggestions would be helpfull.