Edit Row on F2

        // These routines manage the "Edit on F2" feature where the entire row
        // goes into edit mode on keypress of the F2 key.
        // make sure you attach them to all the grids in your project
        private void Grid_KeyUp(object sender, KeyEventArgs e)
        {
            DataGridView dg = (sender as DataGridView);
            if (e.KeyCode == Keys.F2)
            {
                if (dg.EditMode != DataGridViewEditMode.EditOnKeystroke)
                {
                    dg.EditMode = DataGridViewEditMode.EditOnKeystroke;
                    dg.BeginEdit(false);
                }
            }
        }

        private void Grid_RowLeave(object sender, DataGridViewCellEventArgs e)
        {
            DataGridView dg = (sender as DataGridView);
            save();
            dg.EditMode = DataGridViewEditMode.EditProgrammatically;
        }