Winform Datagridview 添加右键菜单

#region 添加右键删除菜单

        private void kryptonDataGridView1_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)
        {
            if (e.Button == MouseButtons.Right)
            {
                if (e.RowIndex >= 0)
                {
                    if (kryptonDataGridView1.Rows[e.RowIndex].Selected == false)
                    {
                        kryptonDataGridView1.ClearSelection();
                        kryptonDataGridView1.Rows[e.RowIndex].Selected = true;
                    }
                    if (kryptonDataGridView1.SelectedRows.Count == 1 && e.ColumnIndex != -1)
                    {
                        kryptonDataGridView1.CurrentCell = kryptonDataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];
                    }
                    _ShowMenu(kryptonDataGridView1, kryptonContextMenu1);
                }
            }
        }

        private void _ShowMenu(Control c, KryptonContextMenu kmenu)
        {
            kmenu.Show(c.RectangleToScreen(c.ClientRectangle), (KryptonContextMenuPositionH)Enum.Parse(typeof(KryptonContextMenuPositionH), "Left"), (KryptonContextMenuPositionV)Enum.Parse(typeof(KryptonContextMenuPositionV), "Below"));
        }

        private void kryptonContextMenuItem1_Click(object sender, EventArgs e)
        {
            object obId = kryptonDataGridView1.CurrentRow.Cells["Id"].Value;
            if (obId == null || DBNull.Value.Equals(obId))
            {
                KryptonMessageBox.Show("你选择的是空行", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
                return;
            }
            else
            {
                if (KryptonMessageBox.Show("确定删除?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
                {
                    //获得选择数据
                    StockDetail sd = this.cbgll.GetStockDetailById(obId.ToString());
                    if (sd != null)
                    {
                        //是否已经审核
                        if (sd.Cid.State == 0)
                        {
                            new StockDetailDAL().Remove(sd);
                            //删除控件行
                            kryptonDataGridView1.Rows.Remove(kryptonDataGridView1.CurrentRow);
                        }
                        else
                        {
                            KryptonMessageBox.Show("已审核不能删除", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
                        }
                    }
                    else
                    {
                        //删除控件行
                        kryptonDataGridView1.Rows.Remove(kryptonDataGridView1.CurrentRow);
                    }

                }
            }
        }
        #endregion