internal void CorrectSlotsAfterInsertion(int slot, UIElement element, bool isCollapsed)
{
if (slot < this.FirstScrollingSlot)
{
// The row was inserted above our viewport, just update our indexes
this.FirstScrollingSlot++;
this.LastScrollingSlot++;
}
else if (isCollapsed && (slot <= this.LastScrollingSlot))
{
this.LastScrollingSlot++;
}
else if ((_owner.GetPreviousVisibleSlot(slot) <= this.LastScrollingSlot) || (this.LastScrollingSlot == -1))
{
Debug.Assert(element != null);
// The row was inserted in our viewport, add it as a scrolling row
LoadScrollingSlot(slot, element, true /*updateSlotInformation*/);
}
}
