private void DataGV_MouseClick(object sender, System.Windows.Forms.MouseEventArgs e)
            {
                DataGridView.HitTestInfo hti = DataGV.HitTest(e.X, e.Y);

                if (hti.Type == DataGridViewHitTestType.RowHeader || hti.Type == DataGridViewHitTestType.Cell)
                {
                    DataGV.CurrentCell = DataGV.Rows[hti.RowIndex].Cells[0];

                    if (e.Button == System.Windows.Forms.MouseButtons.Right)
                    {
                        DataGV.CurrentCell = DataGV.Rows[hti.RowIndex].Cells[0];

                        DataGVContextMenu.Show(this, e.Location);
                    }

                    string oGuid = DataGV.CurrentRow.Cells["Guid"].Value.ToString();
                    Helper.ZoomWindowAndHilight(oGuid);

                    if (Helper._CurrentIndex != hti.RowIndex)
                    {
                        BtnUndo.Enabled      = false;
                        Helper._CurrentIndex = hti.RowIndex;
                    }
                }
            }