>Aren
Thanks! Now I figured out what to do!
For now , updating the topmost row or bottom most row when
OnInitializeItem is called! I check the row is topmost or bottom most
inside OnInitializeItem! It is ok when I drag slowly but when momentum
occurs, [i.e OnInitializeItem is called more than one time in one frame]
I can't control updating! Is there a way to limit OnInitializeItem get Called
when there is no OnInitializeItem doing in same frame?