C# DataGridView 清除所有被選擇列[ClearSelection] / 紀錄和指定選擇列 / 觸發SelectionChanged事件

資料來源: https://dotblogs.com.tw/sam319/2009/12/28/12706

https://docs.microsoft.com/zh-tw/dotnet/api/system.windows.forms.datagridview.clearselection?view=windowsdesktop-6.0

code

        public void dgvmain001_SelectionChangedCall()
        {
            //---
            //觸發dgvmain001_SelectionChanged 正確呼叫 quantityButtonEnableStateSet
            if (dgvmain001.Rows.Count > 0)
            {
                int index = dgvmain001.SelectedRows[0].Index;
                dgvmain001.ClearSelection();
                dgvmain001.Rows[index].Selected = true;
            }
            //---觸發dgvmain001_SelectionChanged 正確呼叫 quantityButtonEnableStateSet
        }
		
        private void dgvmain001_SelectionChanged(object sender, EventArgs e)
        {
            if (m_intOrderState != 0)//購物車清單項目訂單狀態偵測防呆
            {
                return;
            }

            int x, y, row;
            if (dgvmainArrayIndexGet(out x, out y, out row) != 0)
            {
                return;
            }
            //判斷項目內容-產品/調味品/折扣讓/小計
            //state0
            //0[產品]
            //1[折扣讓]
            //2[小計]
            //3[調味品合併]
            //4[調味品單一]
            int intState0 = -1;
            String StrBuf = dgvmain001.Rows[row].Cells[0].Value.ToString();
            string[] strs = StrBuf.Split(',');
            int intIndex = Int32.Parse(strs[0]);
            int intBuf = Int32.Parse(strs[1]);

            if (intIndex < 0)//訂單結帳列，直接跳離防呆機制
            {
                return;
            }

            if (intBuf >= 0)
            {
                //3[調味品合併]
                //4[調味品單一]
                if (Int32.Parse(dgvmain001.Rows[row].Cells[4].Value.ToString()) > 1)
                {
                    intState0 = 3;
                }
                else
                {
                    intState0 = 4;
                }
            }
            else
            {
                //0[產品]
                //1[折扣讓]
                //2[小計]
                intState0 = Math.Abs(intBuf) - 1;
            }
            m_intDelItemType = intState0;

            int item_no = m_ShopCart.m_ShopMainList[intIndex].m_intitem_no;
            String SQL = String.Format("SELECT discount_type,subtotal_flag FROM order_content_data WHERE order_no='{0}' AND item_no='{1}' LIMIT 0,1;", m_StrPosOrderNumber, item_no);
            DataTable order_content_dataTable = SQLDataTableModel.GetDataTable(SQL);

            //判斷有折扣/折讓
            //state1 0/1
            int intState1 = 0;//無 折扣/折讓


            //判斷有無小計
            //state2 0/1
            int intState2 = 0;//無 小計

            if (order_content_dataTable.Rows.Count > 0)
            {
                if (order_content_dataTable.Rows[0]["discount_type"].ToString() != "N")
                {
                    intState1 = 1;
                }
                if (order_content_dataTable.Rows[0]["subtotal_flag"].ToString() != "N")
                {
                    intState2 = 1;
                }
            }

            quantityButtonEnableStateSet(intState0, intState1, intState2);

            if ((intState0 != 1) && (intState0 != 2))
            {
                ShopCartListChangecondimentButtonInitShow();//購物車點選切換調味品選項
            }
        }