[SOLVED] extjs treepanel expand collapse event

extjs treepanel expand collapse event

I have a treepanel with nodes inside the treepanel. To identify whether the treepanel and not the nodes that are expanded or collapsed I use the following code:

Ext.getCmp('general').collapsed

The return value is either true or false. Is there an event in treepanel that I can capture when the treepanel is expanded or collapsed? I mean the treepanel and not the nodes in the panel.

Your help is kindly appreciated.

Thank You.

Solution

You must do something wrong here, the following code works, see this JSFiddle

Ext.create('Ext.tree.Panel', {
    collapsible: true,
    title: 'Simple Tree',
    width: 200,
    height: 150,
    store: store,
    rootVisible: false,
    renderTo: Ext.getBody(),
    listeners: {
        collapse: function() {
            alert('collapsed');
        },
        expand: function() {
            alert('expand')
        }
    }
});