从fancytree插件获取所有节点

Question

I am trying to got list of all node from tree, when click button outside tree. I got list of all selected node from tree, but having problem with got list of all node from tree.

Here is my code:

$(document).on('click', '.del', function () {
    var selKeys = $.map($('#tree1111').fancytree('getTree').getSelectedNodes(), function (node) {
        return node;
    });
});

I try this but not working

var allKeys = $.map($('#tree1111').fancytree('getTree'), function (node) {
    return node;
});

$.each(allKeys, function (event, data) {
alert(data.key)
});

Answer 1

You simply have to access the source option.

If the tree is modified dynamically, you need to recover the children of the root node, and get only the properties you need. You have a lot of possible ways to do it .

 var source = [ {title: "Node 1", key: "1"}, {title: "Folder 2", key: "2", folder: true, children: [ {title: "Node 2.1", key: "3"}, {title: "Node 2.2", key: "4"} ]} ]; $('#tree').fancytree({ source: source }); // Get the tree var tree = $('#tree').fancytree('getTree'); // Dynamically add new node var folder2 = tree.findFirst('Folder 2'); folder2.addNode({title:'New node'}); // original data var source = tree.options.source; $('#original').html(JSON.stringify(source,null,2)); // get the tree nodes var root = tree.getRootNode(); var nodes = root.children; console.log(root); console.log(nodes); 

 <link href="https://cdnjs.cloudflare.com/ajax/libs/jquery.fancytree/2.15.0/skin-win8/ui.fancytree.css" rel="stylesheet"/> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.4/jquery-ui.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.fancytree/2.15.0/jquery.fancytree-all.js"></script> <div id="tree"></div> <b>Original data</b> <pre id="original"></pre> <b>Data recovered from modified tree:</b> Please, see the console. It cannot be directly converted to JSON because it has circular references (child to parent) 

Answer 2

You can try like this

var allKeys = $.map($('#tree1111').fancytree('getRootNode').getChildren(), function (node) {
        return node;
    });

$.each(allKeys, function (event, data) {
alert(data.key)
});