get checked values for jsTree - submit with form post

In the last version (3.0), the API was changed.

If you need just array of selected IDs (like in examples in this node), it is now very easy:

var selectedElmsIds = $('#tree').jstree("get_selected");

If you need to iterate over the selected elements, you just need to pass additional "true" parameter.

var selectedElmsIds = [];
var selectedElms = $('#tree').jstree("get_selected", true);
$.each(selectedElms, function() {
    selectedElmsIds.push(this.id);
});

Have you got your answer ? If not, here is one that appears in the jstree google groups

    function submitMe(){ 
        var checked_ids = []; 
        $("#server_tree").jstree("get_checked",null,true).each 
            (function () { 
                checked_ids.push(this.id); 
            }); 
           doStuff(checked_ids); 

The suggested solution from google groups however didn't work for partially checked nodes, in my case. I had to leave the get_checked out and do the following to get fully selected and partially selected nodes.

$(".sector-tree").find(".jstree-undetermined").each(function(i,element){            
    checked_ids.push($(element).attr("id"));

    if ($(this).find(".jstree-undetermined").length == 0) {  
        $(this).find(".jstree-checked").each(function(i, element){          
            checked_ids.push({$(element).attr("id"));
        });         
    }
});

// collect the rest of the checked nodes that exist under checked parents
$(".sector-tree").find(".jstree-checked").each(function(i, element){ //also includes the ones below 'undetermined' parent

    var selectedElement = $(element).attr("id");
    if ( hasItem(selectedElement, checked_ids ) < 0 ) {             
        checked_ids.push(selectedElement);
    }

}); 

Everyone, who worked with Jstree’s may face to this question: How to get the checked Ids of Jstree in form submit? here is the solution:

function submitMe() {
    var checked_ids = [];
    $('#your-tree-id').jstree("get_checked",null,true).each(function(){
        checked_ids.push(this.id);
    });
    //setting to hidden field
    document.getElementById('jsfields').value = checked_ids.join(",");
}

Now, we set it in a hidden field:

<input type="hidden" name="jsfields" id="jsfields" value="" />