Parent of source argument OnDrop is null (tree)

[hahamed]

Hello, my code is:

Code:

onDrop: function (target, source, point) {
    var parent = $(this).tree('getParent', source.target);
    // parent become null

Why parent become null?
thanks

[jarry]

The onDrop event fires after a node is dropped. The source  node has been moved. You can not access it by .target property. To get the moved node, please call find method with the id value of the special node.

[hahamed]

The onDrop event fires after a node is dropped. The source  node has been moved. You can not access it by .target property. To get the moved node, please call find method with the id value of the special node.

very thanks