I have a combobox as a cell editor in a grid which worked just fine and dandy in 5.0.1, but now that I'm trying 5.1.0.47, I'm now getting this error when I type in the box to get matching values:

Code:



TypeError: selected[0] is null
'aria-activedescendant': (selected.length ? selected[0].id : undefined)
ext/packages/ext-aria/overrides/form/field/ComboBox.js?_dc=1417746537385 (line 59, col 2)

the offending code:

Code:



onExpand: function() {
        var me = this,
            selected = me.picker.getSelectedNodes();


        me.callParent(arguments);
        me.ariaUpdate({
            'aria-expanded': true,
            'aria-activedescendant': (selected.length ? selected[0].id : undefined)
        });
    }

I'm sorry but I don't have the time to create a Fiddle. Too many things have broken that require testing.

I'm using Firefox 33.1 on Windows 8.1 (same problem occurs with Chrome 39 and Internet Explorer 11).