protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
        {
            bool result =false;
            Control c = Control.FromHandle(msg.HWnd);
            if (msg.HWnd == this.dataGridView1.Handle || (c is DataGridViewTextBoxEditingControl))
            {
                if (msg.WParam.ToInt32() == (int)Keys.Return)
                {
                    this.dataGridView1.CurrentCell = this.dataGridView1.CurrentRow.Cells[this.dataGridView1.CurrentCell.RowIndex + 1];
                    result = true;
                }
            }
            else
            {
                result = base.ProcessCmdKey(ref msg, keyData);
            }
            return result;
        }