Winform动态加载TabControl用法

private void BindTabData()
        {
            dtIPD = new DataTable();
            //drItem = new DataTable();
            //获取【项目大类】列表显示于 TabPage
            MRD_Score model = new MRD_Score();
            model.ActiveFlag = "Y";
            DataTable dtScore = fmed.GetScoreType(model);
            foreach (DataRow dr in dtScore.Rows)
            {
                MRD_Score sr = new MRD_Score();
                sr.PCode = dr["ProCode"].ToString();

                TabPage tabpage = new System.Windows.Forms.TabPage(dr["ProName"].ToString().Trim());
                tabpage.Name = dr["ProName"].ToString().Trim();
                tabpage.AutoScroll = true;
                tabpage.Text = dr["ProName"].ToString().Trim();
                //获取大类下的 缺陷项目列表  txtIPD_NO.Text.Trim()
               DataTable  drItem = fmed.getScoreItemType(sr.PCode, "");
                drItem.Columns.Add("缺陷数", Type.GetType("System.Int32"));
                drItem.Columns.Add("已审核", Type.GetType("System.Int32"));
                drItem.Columns.Add("评分时间", Type.GetType("System.String"));
                drItem.Columns.Add("评分人", Type.GetType("System.String"));
                drItem.Columns.Add("审核时间", Type.GetType("System.String"));
                drItem.Columns.Add("审核人", Type.GetType("System.String"));
                DataGridView dgv = new DataGridView();
                dgv.AllowUserToAddRows = false;//禁用新增
                dgv.AllowUserToDeleteRows = false; //禁用删除
                dgv.Width = ;
                dgv.Height = ;
                dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.DisplayedCells;

                dgv.CellValidating += new DataGridViewCellValidatingEventHandler(dgv_CellValidating);//验证是否为数字
                dgv.CellBeginEdit += new DataGridViewCellCancelEventHandler(dgv_CellBeginEdit);// 设置 是否可以编辑
                dgv.CellEndEdit += new DataGridViewCellEventHandler(dgv_CellEndEdit);
                //dgv.CellFormatting += new DataGridViewCellFormattingEventHandler(dgv_CellFormatting);
                dgv.DataSource = drItem;
                dtIPD = fmed.getScoreItemType(sr.PCode, txtIPD_NO.Text.Trim());
                tabpage.Controls.Add(dgv);
                this.tabControl1.Controls.Add(tabpage);
                SetInputValue(dgv, dtIPD);//加载已经输入的分值
                total += getDeFen(dgv, dtIPD);

                dgv.Columns["PCode"].Visible = false;
                dgv.Columns["ItemCode"].Visible = false;
                dgv.Columns["评分人"].Visible = false;
                dgv.Columns["审核人"].Visible = false;
            }
        }

 private void GetTolSum()
         {
             if (tabControl1.TabCount == )
             {
                 txtScore.Clear();
                 txtLevel.Clear();
                 return;
             }
             double tolsource = 0.00;
             for (int i = ; i < tabControl1.TabCount; i++)
             {
                 if (!tabControl1.TabPages[i].HasChildren)
                 {
                     continue;
                 }
                 tolsource += SumDgv((DataGridView)tabControl1.TabPages[i].Controls[]);
             }
             GetScoreLevel(tolsource);
             SaveTol();

         }