ItemPageNavigationBehaviour.cs

public class ItemPageNavigationBehaviour : ActionBehaviour
{
    private readonly ItemPage itemPage;
    private readonly string itemUrl;

    public ItemPageNavigationBehaviour(string itemUrl)
    {
        this.itemPage = UnityContainerFactory.GetContainer().Resolve<ItemPage>();
        this.itemUrl = itemUrl;
    }

    protected override void PerformAct()
    {
        this.itemPage.Navigate(this.itemUrl);
    }
}