Set an empty text to grid if store has an exception

[coshmos]

Hi.

I've got the panel

Ext.create('Ext.grid.Panel', {
    title: 'Simpsons',
    store: Ext.data.StoreManager.lookup('simpsonsStore'),
    columns: [{
        text: 'Name',
        dataIndex: 'name'
    },
    {
        text: 'Email',
        dataIndex: 'email',
        flex: 1
    },
    {
        text: 'Phone',
        dataIndex: 'phone'
    }],
    height: 200,
    width: 400,
    renderTo: Ext.getBody(),
    viewConfig: {
        emptyText: 'Something is wrong'
    }
});

And the store:

Ext.create('Ext.data.Store', {
    storeId: 'simpsonsStore',
    fields: ['name', 'email', 'phone'],
    data: {
        'items': [{
            'name': 'Lisa',
            "email": "lisa@simpsons.com",
            "phone": "555-111-1224"
        },
        {
            'name': 'Bart',
            "email": "bart@simpsons.com",
            "phone": "555-222-1234"
        },
        {
            'name': 'Homer',
            "email": "home@simpsons.com",
            "phone": "555-222-1244"
        },
        {
            'name': 'Marge',
            "email": "marge@simpsons.com",
            "phone": "555-222-1254"
        }]
    },
    proxy: {
        type: 'memory',
        reader: {
            type: 'json',
            root: 'items'
        }
    },
    url: 'StoreUrl',
    listeners: {
        exception: function(proxy, response, operation) {
            Ext.Msg.show({
                title: 'Exception',
                msg: response.statusText + response.status,
                buttons: Ext.Msg.OK,
                icon: Ext.Msg.ERROR
            });
        }
    }
});

I want to set an emptyText (or just show it) when 'exception' is fired. Is it possible?