3 writes to _firstItemInExtendedViewportIndex
PresentationFramework (3)
System\Windows\Controls\VirtualizingStackPanel.cs (3)
2354_firstItemInExtendedViewportIndex = 0; 2408_firstItemInExtendedViewportIndex = firstItemInViewportIndex; 2673_firstItemInExtendedViewportIndex = Math.Max(_firstItemInExtendedViewportIndex - 1, 0);
19 references to _firstItemInExtendedViewportIndex
PresentationFramework (19)
System\Windows\Controls\VirtualizingStackPanel.cs (19)
2673_firstItemInExtendedViewportIndex = Math.Max(_firstItemInExtendedViewportIndex - 1, 0); 2674IndexToGeneratorPositionForStart(_firstItemInExtendedViewportIndex, out _firstItemInExtendedViewportChildIndex); 2681ComputeDistance(items, itemStorageProvider, isHorizontal, areContainersUniformlySized, uniformOrAverageContainerSize, 0, _firstItemInExtendedViewportIndex, out _firstItemInExtendedViewportOffset); 2950_firstItemInExtendedViewportIndex, 2966_firstItemInExtendedViewportIndex + _actualItemsInExtendedViewportCount, 3092ComputeDistance(items, itemStorageProvider, isHorizontal, areContainersUniformlySized, uniformOrAverageContainerSize, 0, _firstItemInExtendedViewportIndex, out newOffset); 3517arrangeSize, _firstItemInExtendedViewportIndex, _firstItemInExtendedViewportOffset); 3546"ev:", _firstItemInExtendedViewportIndex, "+", _itemsInExtendedViewportCount, 3643(startIndex < _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount); 3658(startIndex < _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount); 3668((startIndex < _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount) || 3669(startOldIndex < _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount)); 3701(startIndex != _firstItemInExtendedViewportIndex + _itemsInExtendedViewportCount - 1); 8521previousChildItemIndex = _firstItemInExtendedViewportIndex; 8556previousChildItemIndex = _firstItemInExtendedViewportIndex + (index - _firstItemInExtendedViewportChildIndex); 9409needsMoreCleanup = CleanupContainers(_firstItemInExtendedViewportIndex, 9520return Math.Max(0, _firstItemInExtendedViewportIndex); 9528return Math.Min(ItemCount, _firstItemInExtendedViewportIndex + _actualItemsInExtendedViewportCount); 12975s._firstItemInExtendedViewportIndex = _firstItemInExtendedViewportIndex;