Reading "state" value of a delegate from a repeater

[Ankit.Jain]

Hi,

The code is something like:

Image  {
    id: image
}

Repeater {
    id: repeater
    model: cppExposedModel

    delegate: component
}

Component {
    id: component

    Item {
        id: item
   }
}

Now I want to set the visibility of the image using the state of Item(s). I've tried looping over the repeater, but I'm returned a null on use of itemAt.
I'm getting an error that the item is linked to a non-notifyable property. Due to this when I tried changing the item state, the visibility evaluation code is never evoked. Might I be suggested the correct approach for this?