public void AddItem(int key, string title)
{
var itemSelector = new ItemSelectorVm(title, key);
_itemSubscr[itemSelector] = itemSelector.OnSelectionChanged.Subscribe(HandleSelectionChanged);
_itemSelectors.Add(itemSelector);
}
void HandleSelectionChanged(ItemSelectorVm itemSelector)
{
_selectionChanged.OnNext(itemSelector);
}
public void RemoveItem(ItemSelectorVm itemSelectorVm)
{
_itemSubscr[itemSelectorVm].Dispose();
_itemSubscr.Remove(itemSelectorVm);
}