jsTree : How to get all nodes from jstree?

From documentation:

.get_json ( node , li_attr , a_attr )

This function returns an array of tree nodes converted back to JSON.

More info about same function from this doc:

This function traverses the whole tree and exports it as JSON. Refer do the data sources section to see the format of the output.

If you specify a node as the first argument, only that node and its children are included in the export, otherwise the whole tree is exported.

Just search and you shall find! :)

Solution with example :)

var xmlString = $("#tree").jstree("get_xml");   
    var xmlDOM = $.parseXML(xmlString);

    var IDList =[];
var items = $(xmlDOM).find('root item');
$.each (items, function(key, val){
    IDList.push($(val).attr('id'));
})

IDList.pop();

xmlString =

<root>  
        <item id="A" parent_id="0" state="close">  
            <content><name>Charles Madigen</name></content>                
        </item>
        <item id="A1" parent_id="A" state="close">  
            <content><name>Charles Madigen</name></content>                
        </item>
          .
          .
</root>

Output: Root, A, A1, A1.1, A1.2, A2, A2.1, A2.2, B, B1, B2, C, C1, C1.1, C2.2

:)

You can traverse each node element and put it's id in an array via:

var idList = [];
var jsonNodes = $('#tree').jstree(true).get_json('#', { flat: true });
$.each(jsonNodes, function (i, val) {
    idList.push($(val).attr('id'));
})