关于obout_ASPTreeView_2_NET树控件

Question

我从A页点击B页面上的树的某个节点 打开节点对应的B页面 但为什么只有第一个节点能展开 其它都展不开 到了B页面点树的节点才行 为什么呢？ 每个节点有3层 

Answer 1

 foreach (DataRow row1 in levelsDT.Rows)
            {
                string parentNode = "root";
                string currentNode = parentNode + "_" + levelcounter;
                string currentNodeText = "<span onclick='ob_t23(this)' style='cursor:pointer;'>" + levelsDT.Rows[levelcounter]["Name"].ToString() + "</span>";
                oTreeReader.Add(parentNode, currentNode, currentNodeText, false, null, null);
                int partscounter = 0;
                #region
                foreach (DataRow row2 in partsDT.Rows)
                {
                    if (levelsDT.Rows[levelcounter]["LevelId"].ToString() == partsDT.Rows[partscounter]["LevelId"].ToString())
                    {
                        string parentNode2 = parentNode + "_" + levelcounter;
                        string currentNode2 = parentNode2 + "_" + partscounter;                        //Add node for Parts
                        string goToUrlParts = "Parts.aspx?pId=" + partsDT.Rows[partscounter]["PartId"].ToString() + "&id=" + currentNode2;                        string htmlParts = "<span onclick='ob_t23(this)' style='cursor:pointer;'>" + partsDT.Rows[partscounter]["Name"].ToString() + "</span>";
                        //string htmlParts = "Part " + partsticker + " : " + partsDT.Rows[partscounter]["Name"].ToString();
                        oTreeReader.Add(parentNode2, currentNode2, htmlParts, false, null, null);
                        partsticker++;                        if (partsticker == 6)
                            partsticker = 1;
                        int lessoncounter = 0;
                        int internalLessonCounter = 0;
                        foreach (DataRow row3 in lessonsDT.Rows)
                        {
                            if (lessonsDT.Rows[lessoncounter]["PartId"].ToString() == partsDT.Rows[partscounter]["PartId"].ToString())
                            {
                                //Add node for the lessons / dialogues
                                string parentNode3 = parentNode + "_" + levelcounter + "_" + partscounter;
                                //string currentNode3 = parentNode3 + "_" + lessoncounter;
                                string currentNode3 = parentNode3 + "_" + internalLessonCounter;
                                string goToUrl;                                                           //Changed so that could disable dialogues before the advanced ones
                                string html;//= "<a href='" + goToUrl + "' TITLE='" + lessonsDT.Rows[lessoncounter]["Name"].ToString() + " Dialogue'>课时: " + lessonsDT.Rows[lessoncounter]["Name"].ToString() + "</A>";
                                if (lessonsDT.Rows[lessoncounter]["types"].ToString() == "2")//lessons判断对话或者阅读
                                {
                                    goToUrl = "Dialogue.aspx?typ=Adv&lId=" + lessonsDT.Rows[lessoncounter]["LessonId"].ToString() + "&id=" + currentNode3;
                                    html = "<a href='" + goToUrl + "' TITLE='" + lessonsDT.Rows[lessoncounter]["Name"].ToString() + " Dialogue'>" + readerLabel + lessonsDT.Rows[lessoncounter]["Name"].ToString() + "</A>";
                                }
                                else if ((int)ViewState["tac"] == 3)
                                {
                                    goToUrl = "advanceddialogue1.aspx?typ=Adv&lId=" + lessonsDT.Rows[lessoncounter]["LessonId"].ToString() + "&id=" + currentNode3;
                                    html = "<a href='" + goToUrl + "' TITLE='" + lessonsDT.Rows[lessoncounter]["Name"].ToString() + " Dialogue'>Reader: " + lessonsDT.Rows[lessoncounter]["Name"].ToString() + "</A>";                                }
                                else
                                {
                                    goToUrl = "advanceddialogue.aspx?typ=Adv&lId=" + lessonsDT.Rows[lessoncounter]["LessonId"].ToString() + "&id=" + currentNode3;
                                    html = "<a href='" + goToUrl + "' TITLE='" + lessonsDT.Rows[lessoncounter]["Name"].ToString() + " Dialogue'>Reader: " + lessonsDT.Rows[lessoncounter]["Name"].ToString() + "</A>";
                                }
                                oTreeReader.Add(parentNode3, currentNode3, html, false, null, null);                                internalLessonCounter = internalLessonCounter + 1;
                               
                            }
                            lessoncounter++;
                        }
                    }
                    partscounter++;
                }
                #endregion
                levelcounter++;                // Write treeview to your page.
                TreeViewReaders.Text = oTreeReader.HTML();