jsTree: with lazy loading the plugin "dnd" is not working - jstree

Question

I'm using jsTree (latest version) in my web app. I have a lot of nodes to display in the tree, so I am using lazy loading otherwise I would run into a time out.
When the tree is loaded, the user can pick values from a second tree and move them into the lazy loaded tree (jsTree plugin "dnd"). Both tree have the jsTree plugin "dnd" installed. But I can not drop a element into the lazy loaded tree, when I try to do so the node to be dropped is having an icon with a red cross (indication: not allowed here).
This is the code for the lazy loaded tree:
$('#target_tree').jstree({
'core' : {
'data' : {
"url" : "get_current_hierachy",
"data" : function (node) {
return {'p_parent_id': node.id};
},
"dataType": "json",
"check_callback": true
}
},
"plugins" : ["dnd"]
});
When I load some data in the first tree without the lazy loading, the drag'n'drop is working as expected.
When I load data in the first tree with lazy loading, the drag'n'drop is not working any more.
Any help would be greatly appreciated.

Answer 1

Try this ...
$(document).ready(function () {
$('#target_tree').jstree({
'core': {
'data': {
"url": function (node) {
var url;
if (node.id == '#') {
url = "getRootNode";
} else {
var id = $(node).data("id");
url = "getChildNode?nodeid=" + id;
}
return url;
},
"data": function (node) {
return { "id": node.id };
},
"type": "GET",
"dataType": "json",
"contentType": "application/json charset=utf-8",
},
'check_callback': true,
},
"plugins": ["dnd"]
});
});
I think you need to prepare url