I'm having a problem with collapsing in treeGrid by using the adjacency model.

I've tried severeal times to get it working but it seems i'm missing a point & the demo of jqgrid for the adjacency model isn't working as well.

The problem is – if i expand a column it works fine it loads the right data by xml & shows them.

But if i collapse the parent-column it does nothing. So the child-data is still shown and if i expand the parent

again it loads the data again and if have twice the children-elements.

I'm using jqGrid 3.6.4

js-code:

$(document).ready(