3 writes to _firstItemInExtendedViewportIndex
PresentationFramework (3)
System\Windows\Controls\VirtualizingStackPanel.cs (3)
2353_firstItemInExtendedViewportIndex = 0; 2407_firstItemInExtendedViewportIndex = firstItemInViewportIndex; 2672_firstItemInExtendedViewportIndex = Math.Max(_firstItemInExtendedViewportIndex - 1, 0);
19 references to _firstItemInExtendedViewportIndex
PresentationFramework (19)
System\Windows\Controls\VirtualizingStackPanel.cs (19)
2672_firstItemInExtendedViewportIndex = Math.Max(_firstItemInExtendedViewportIndex - 1, 0); 2673IndexToGeneratorPositionForStart(_firstItemInExtendedViewportIndex, out _firstItemInExtendedViewportChildIndex); 2680ComputeDistance(items, itemStorageProvider, isHorizontal, areContainersUniformlySized, uniformOrAverageContainerSize, 0, _firstItemInExtendedViewportIndex, out _firstItemInExtendedViewportOffset); 2949_firstItemInExtendedViewportIndex, 2965_firstItemInExtendedViewportIndex + _actualItemsInExtendedViewportCount, 3091ComputeDistance(items, itemStorageProvider, isHorizontal, areContainersUniformlySized, uniformOrAverageContainerSize, 0, _firstItemInExtendedViewportIndex, out newOffset); 3516arrangeSize, _firstItemInExtendedViewportIndex, _firstItemInExtendedViewportOffset); 3545"ev:", _firstItemInExtendedViewportIndex, "+", _itemsInExtendedViewportCount, 3642(startIndex < _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount); 3657(startIndex < _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount); 3667((startIndex < _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount) || 3668(startOldIndex < _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount)); 3700(startIndex != _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount - 1); 8520previousChildItemIndex = _firstItemInExtendedViewportIndex; 8555previousChildItemIndex = _firstItemInExtendedViewportIndex + (index - _firstItemInExtendedViewportChildIndex); 9408needsMoreCleanup = CleanupContainers(_firstItemInExtendedViewportIndex, 9519return Math.Max(0, _firstItemInExtendedViewportIndex); 9527return Math.Min(ItemCount, _firstItemInExtendedViewportIndex + _actualItemsInExtendedViewportCount); 12974s._firstItemInExtendedViewportIndex = _firstItemInExtendedViewportIndex;