DataGridView 현재 선택된 행의 값 알아오기

현재 선택된 행의 값은
 
this.DataGridView.Rows[this.DataGridView.CurrentCellAddress.Y].Cells[0].Value.ToString()
this.DataGridView.Rows[this.DataGridView.CurrentCellAddress.Y].Cells[1].Value.ToString()
this.DataGridView.Rows[this.DataGridView.CurrentCellAddress.Y].Cells[2].Value.ToString()
this.DataGridView.Rows[this.DataGridView.CurrentCellAddress.Y].Cells[3].Value.ToString()