3 writes to _firstItemInExtendedViewportIndex
PresentationFramework (3)
System\Windows\Controls\VirtualizingStackPanel.cs (3)
2365_firstItemInExtendedViewportIndex = 0; 2419_firstItemInExtendedViewportIndex = firstItemInViewportIndex; 2684_firstItemInExtendedViewportIndex = Math.Max(_firstItemInExtendedViewportIndex - 1, 0);
19 references to _firstItemInExtendedViewportIndex
PresentationFramework (19)
System\Windows\Controls\VirtualizingStackPanel.cs (19)
2684_firstItemInExtendedViewportIndex = Math.Max(_firstItemInExtendedViewportIndex - 1, 0); 2685IndexToGeneratorPositionForStart(_firstItemInExtendedViewportIndex, out _firstItemInExtendedViewportChildIndex); 2692ComputeDistance(items, itemStorageProvider, isHorizontal, areContainersUniformlySized, uniformOrAverageContainerSize, 0, _firstItemInExtendedViewportIndex, out _firstItemInExtendedViewportOffset); 2961_firstItemInExtendedViewportIndex, 2977_firstItemInExtendedViewportIndex + _actualItemsInExtendedViewportCount, 3103ComputeDistance(items, itemStorageProvider, isHorizontal, areContainersUniformlySized, uniformOrAverageContainerSize, 0, _firstItemInExtendedViewportIndex, out newOffset); 3531arrangeSize, _firstItemInExtendedViewportIndex, _firstItemInExtendedViewportOffset); 3560"ev:", _firstItemInExtendedViewportIndex, "+", _itemsInExtendedViewportCount, 3657(startIndex < _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount); 3672(startIndex < _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount); 3682((startIndex < _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount) || 3683(startOldIndex < _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount)); 3715(startIndex != _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount - 1); 8542previousChildItemIndex = _firstItemInExtendedViewportIndex; 8577previousChildItemIndex = _firstItemInExtendedViewportIndex + (index - _firstItemInExtendedViewportChildIndex); 9430needsMoreCleanup = CleanupContainers(_firstItemInExtendedViewportIndex, 9539return Math.Max(0, _firstItemInExtendedViewportIndex); 9547return Math.Min(ItemCount, _firstItemInExtendedViewportIndex + _actualItemsInExtendedViewportCount); 13002s._firstItemInExtendedViewportIndex = _firstItemInExtendedViewportIndex;