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dhtmlxtree and dhtmlxconnector

Hello,

I have to load big structures into dhtmlxtree and they are created dynamically from a SQL-Database by the dhtmlxconnector. The latest structure has about 2500 Elements and still growing. I takes about 20 sec. and more, until the three is loaded, only the creation of the xml-source took 12 sec. :( Has somebody experience working with large dynamic structures?

Thank you very much for your help!

Best regards Philipp

For such big count of elements - dyn. loading is the best solution. 
Check 
       samples\tree\02_dynamic_loading.html 
       samples\tree\02_dynamic_loading_connector.php
inside the connector's package

Sorry, it´s not working:( I have the following code...

$this->setUserStartId($this->user->getStartNode($this->user->getUserId($this->user->Name),"idtm_struktur"));

        $this->DBConnection = new TDbConnection($this->Application->getModule('db1')->database->getConnectionString(),$this->Application->getModule('db1')->database->getUsername(),$this->Application->getModule('db1')->database->getPassword());
        $this->DBConnection->Active = true;

        $res=mysql_connect($this->Application->Parameters['Host'],$this->Application->getModule('db1')->database->getUsername(),$this->Application->getModule('db1')->database->getPassword());
    mysql_select_db($this->Application->Parameters['Database']);
       
        $tree = new TreeConnector($this->DBConnection);
        $tree->enable_log("temp.log",false);
        $tree->dynamic_loading(true);

        $mySQL = "SELECT idtm_struktur,struktur_name,idta_struktur_type,parent_idtm_struktur FROM tm_struktur";
        $mySQLOrderBy = " ORDER BY idta_struktur_type, struktur_name";
       
        $this->load_all_cats($mySQL.$mySQLOrderBy);
       
        //the start ID
        $mySQLcond1 = "idtm_struktur IN (" . $this->subCategory_list($this->subcats, $this->UserStartId) . ",". $this->parentCategory_list($this->parentcats, $this->UserStartId) .")";
      
        function custom_format($item){
            $item->set_image("str".$item->get_value("idta_struktur_type").".gif");
        }

       $tree->event->attach("beforeRender",custom_format);

        $SQLComp = $mySQL." WHERE ".$mySQLcond1.$mySQLOrderBy;
        //print_r($SQLComp);
    $tree->render_sql($SQLComp,"idtm_struktur","struktur_name","parent_idtm_struktur");

Maybe it´s because of the render_sql statement?