ExtJS 4 - Never cache tree nodes in tree panel

Question

I have a simple Ext.tree.Panel, which loads its data from a Ext.data.TreeStore using an ajax proxy.

The default behavior when expanding a treenode seems to be:

• if expanded before: retrieve from cache
• if never expanded: retrieve from server

How can I turn off the caching option, so that it never caches (i.e. always retrieve from server)?

Answer 1

Put this as a listener in the store to get the desired behavior:

collapse: function(node){
    node.removeAll();
    node.set("loaded", false);
}