Tizen Developers

Hi,
I have tried to use OpenContextItem in ListView  to open context of current item when Item was selected.
I have added code inside of OnListViewItemStateChanged:

if(listView.IsContextItemOpened(index)==false)
{
  listView.OpenContextItem(index);
}

But sometimes when I have selected item : context is opened, but sometimes not.
I think it is discrepancy and behaviour should be unambiguous.
Alexey.