Dear sirs,
The file “test.asp” runs a query which returns 50.000 rows from a database, in a xml format, to be showed in a dhtmlxGrid.
Obviously, we are using the “kidsxmlfile” property to implements dynamic loading.
We believe that, by the initial time of loading, all the 50.000 rows are being mounted in memory, to show only around ten root nodes.
When user clicks [+] in TreeView, we understand the “id” parameter of the xml tag is the element used to filter the child rows, and the kidsxmlfile mechanism runs at the client-side.
1) The first need is to avoid to load the entire xml file. I don’t know how.
2) We would like to use more than one parameter to control the data to be loaded (child rows). Each time a user clicks [+] in TreeView, we need to load few rows directly from a Database, whatever, passing parameters to the “test.asp”, like this: “test.asp?product_id=X&customer_id=Y” where X and Y are and depends of the clicked node.
Thanks,
Guilherme
- The first need is to avoid to load the entire xml file. I don’t know how
In case of dynamic loading you have in code something similar to next
grid.kidsXmlFile=“child_brahches.do”
grid.loadXML(“main.do”);
so the script used as parameter of grid.loadXML must return only top level elements with “xmlkids” attribute where it necessary
>>like this:
“test.asp?product_id=X&customer_id=Y” where X and Y are
and depends of the clicked node.
Can’t be done by grid’s API, but can be achieved with pretty simple code modification.
dhtmlxtreegrid.js line 201
this.loadXML(this.kidsXmlFile+""+s+“id=”+r.id);
can be replaced with
this.loadXML(this.kidsXmlFile+""+s+“product_id=”+this.getUserData(id,“b”)+"&customer_id="+this.getUserData(id,“a”));