关于Dtree，求详细解释，就剩下20分了
C# code protected string Url = "";//初始页url protected string tree = ""; SqlServerDataBase obj = new SqlServerDataBase(); string userid = ""; string roleid = ""; string areaid = ""; string themes = ""; DataSet ds = null; protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { Url = Request.QueryString["ul"]; if (Session["ul"] == null || Session["ul"] == "") { Session["ul"] = Url; } else { if (Session["ul"] == Url) { return; } else { Session["ul"] = Url; } } BindSiteTree(); } } private void BindSiteTree() { userid = Request.QueryString["sid"]; string url1 = "", url2 = ""; string Sql = "SELECT cast(id as varchar) id,cast(parentid as varchar) parentid, sname,0 r,1 online FROM UserGroup " + " union SELECT cast(addr1 as varchar)+'$'+cast(addr2 as varchar)+'$'+cast(addr3 as varchar)id,cast(bumenid as varchar) bumenid , '('+cast(addr1 as varchar)+')'+name+'('+cast(addr2 as varchar)+')' name,1 r,online FROM MonitorInfo where addr3!=''"; ds = obj.Select(Sql, null); Response.Write("<script type='text/javascript' src='../js/dtree/dtree_JS.js'></script> "); Response.Write("<script language='javascript'> d = new dTree('d');</script>"); Response.Write("<script language='javascript'>d.add('000',-1,'全部');</script>"); DataRow[] dcarea = ds.Tables[0].Select("parentid='0' "); foreach (DataRow dr in dcarea) { //Response.Write("<script language='javascript'>d.add('" + dr["id"].ToString() + "','000','" + dr["sname"].ToString() + "','../Tem_Index/Index_Elcharge.aspx?id=" + dr["id"].ToString() + "&th=" + Request.QueryString["th"] + "&fg=1','','main');</script>"); // Response.Write("<script language='javascript'>d.add('" + dr["id"].ToString() + "','" + dr["parentid"].ToString() + "','" + dr["sname"].ToString() + "',\"javascript:redir('" + dr["id"].ToString() + "','" + Request.QueryString["th"] + "','1')\");</script>"); Response.Write("<script language='javascript'>d.add('" + dr["id"].ToString() + "','000','" + dr["sname"].ToString() + "',\"javascript:redir('" + dr["id"].ToString() + "','" + Request.QueryString["th"] + "','1')\");</script>"); Child(dr["id"].ToString(), url1, url2); } Response.Write("<script language='javascript'>document.write(d);</script>"); } public void Child(string parent, string url1, string url2) { DataRow[] drchild = ds.Tables[0].Select("parentid='" + parent + "'"); if (drchild != null) { foreach (DataRow dr in drchild) { if (dr["r"].ToString() == "1") { string name = ""; if (dr["online"].ToString() == "0") name = dr["sname"].ToString()+"<font color=red>(离线)</font>"; else name = dr["sname"].ToString() + "<font color=green>(在线)</font>"; Response.Write("<script language='javascript'>d.add('" + dr["id"].ToString() + "','" + dr["parentid"].ToString() + "','" + name + "',\"javascript:redir('" + dr["id"].ToString() + "','" + Request.QueryString["th"] + "','0')\");</script>"); } else Response.Write("<script language='javascript'>d.add('" + dr["id"].ToString() + "','" + dr["parentid"].ToString() + "','" + dr["sname"].ToString() + "',\"javascript:redir('" + dr["id"].ToString() + "','" + Request.QueryString["th"] + "','1')\");</script>"); Child(dr["id"].ToString(), url1, url2); } } }