private void CreatEmptyItem(int x, int y)
        {
            int resultX;
            int resultY;

            resultX = positioningLabel[x].Location.X;
            resultY = positioningLabel[x].Location.Y + COLUMN_SPAN_FIRST + y * COLUMN_SPAN;

            if (!table_current.ContainsKey(new Point(x, y)))
            {
                Label newLbl = new Label()
                {
                    Font      = new Font(new FontFamily("微软雅黑"), (float)10.28571),
                    Location  = new Point(resultX, resultY),
                    AutoSize  = false,
                    Size      = new Size(123, 78),
                    TextAlign = ContentAlignment.MiddleCenter
                };
                panel.Controls.Add(newLbl);
                TableItem_Context newTC = new TableItem_Context(newLbl, new Point(x, y));
                newTC.LabelClickedEvent += ProgramData.Form_TableEdit.TableItem_Clicked;
                createdLabel.Add(newLbl);
                table_current.Add(new Point(x, y), newTC);
            }
        }
        private void CreatItem(int x, int y, TimeSpan item)
        {
            int resultX;
            int resultY;

            resultX = positioningLabel[x].Location.X;
            resultY = positioningLabel[x].Location.Y + COLUMN_SPAN_FIRST + y * COLUMN_SPAN;


            if (item.GetType() == typeof(TimeSpan_Title))
            {
                //创建title
                if (!table_current.ContainsKey(new Point(x, y)))
                {
                    TimeSpan_Title tmp    = (TimeSpan_Title)item;
                    Label          newLbl = new Label()
                    {
                        Font      = new Font(new FontFamily("微软雅黑"), (float)10.28571),
                        Location  = new Point(resultX, resultY),
                        AutoSize  = false,
                        Size      = new Size(123, 78),
                        TextAlign = ContentAlignment.MiddleCenter
                    };
                    newLbl.Text = tmp.Outline + "\n" + tmp.StartTime.ToString("t") + "-" + tmp.EndTime.ToString("t");
                    TableItem_Title newTT = new TableItem_Title(newLbl, (TimeSpan_Title)item, new Point(x, y));
                    newTT.LabelClickedEvent += ProgramData.Form_TableEdit.TableItem_Clicked;
                    table_current.Add(new Point(x, y), newTT);
                    panel.Controls.Add(newLbl);
                }
            }
            else
            {
                //创建context
                if (table_current.ContainsKey(new Point(x, y)))
                {
                    //已存在时,仅绘制信息
                    TableItem_Context ttmp = (TableItem_Context)table_current[new Point(x, y)];
                    ttmp.UpdateLableText();
                }
                else
                {
                    //不存在时,创建

                    Label newLbl = new Label()
                    {
                        Font      = new Font(new FontFamily("微软雅黑"), (float)10.28571),
                        Location  = new Point(resultX, resultY),
                        AutoSize  = false,
                        Size      = new Size(123, 78),
                        TextAlign = ContentAlignment.MiddleCenter
                    };
                    TableItem_Context newTC = new TableItem_Context(newLbl, new TimeSpan_Context[] { (TimeSpan_Context)item }, new Point(x, y));
                    newTC.LabelClickedEvent += ProgramData.Form_TableEdit.TableItem_Clicked;
                    table_current.Add(new Point(x, y), newTC);
                    newTC.UpdateLableText();
                    panel.Controls.Add(newLbl);
                    createdLabel.Add(newLbl);
                }
            }
        }