flutter_data_grid 0.0.20

High-performance, reactive data grid for Flutter with virtualization, sorting, filtering, cell editing, row selection, column pinning, and keyboard navigation.

0.0.20 - 2026-03-15

• Breaking: Removed SelectionMode.single — selection modes are now none and multiple only
• Breaking: SelectionState.initial() now defaults to SelectionMode.none (was single)
• Breaking: enableMultiSelect(false) now sets SelectionMode.none (was single)
• Added cell selection: FocusCellEvent, ShiftSelectCellEvent, ToggleCellInSelectionEvent, ClearCellSelectionEvent, SetFocusedCellsEvent, NavigateCellEvent
• Added CopyCellsEvent — copies focused cells to clipboard as CSV; also triggered by Ctrl+C / Cmd+C
• Added right-click drag-to-select rectangle over the grid body
• Refactored CustomLayoutGridBody into three focused part files: grid_body_scroll_mixin.dart and grid_body_drag_select_mixin.dart

0.0.19 - 2026-03-15

• Pub points changes

0.0.18 - 2026-03-14

• Updated README to remove all references to the removed TwoDimensionalScrollView renderer

0.0.17 - 2026-03-14

• Breaking: Removed DataGridRendererType enum and renderer parameter from DataGrid — only the CustomMultiChildLayout renderer is now supported
• Breaking: Removed DataGridBody, DataGridScrollView, and all TwoDimensionalScrollView-based viewport classes (DataGridViewport, RenderDataGridViewport, DataGridChildDelegate, DataGridVicinity)
• Fixed scrollbar drag throwing when a track-tap animateTo and a simultaneous drag jumpTo conflicted — ExternalScrollPosition.animateTo now resolves instantly via syncPixels instead of starting a DrivenScrollActivity

0.0.16 - 2026-03-14

• Fixed CustomLayoutGridBody touchpad and pointer device scrolling compatibility
• Added trackpad two-finger scroll support via PointerPanZoom events
• Added ballistic (momentum) scrolling with ClampingScrollSimulation on gesture end
• Added axis locking to prevent unintentional cross-axis scroll during imprecise gestures
• Fixed mouse drag-to-scroll (was silently ignored)
• Fixed ballistic animation stopping cleanly at scroll boundaries instead of overshooting

0.0.14 - 2026-02-23

• Added DataGridRendererType enum with twoDimensional and customLayout rendering strategies
• Added renderer parameter to DataGrid widget to choose between rendering strategies
• Added CustomLayoutGridBody — an alternative renderer using CustomMultiChildLayout with pointer-based scrolling, giving full control over scroll behaviour and per-axis rebuild optimisation
• Refactored custom layout into focused widgets: GridUnpinnedQuadrant, GridPinnedQuadrant, GridCell, OffsetScrollbar, ExternalScrollPosition, and GridLayoutDelegate
• Changed default cacheExtent from 2000.0 to 1000.0

0.0.13 - 2026-02-22

• Docs: Added dartdoc comments to all public API members for improved pub.dev documentation score
• Docs: Documented all event classes, state models, controller methods, and widget properties

0.0.12 - 2026-02-22

• Breaking: Removed ViewportState from DataGridState — Flutter's TwoDimensionalScrollView handles viewport tracking internally
• Breaking: Removed ViewportDelegate, DefaultViewportDelegate, and ViewportCalculator
• Breaking: Removed ScrollEvent and ViewportResizeEvent
• Breaking: Removed FilterRenderer, RowRenderer, and RenderContext — replaced by filterWidget + FilterScope
• Performance: Cells now use stream-scoped subscriptions instead of InheritedModel — only affected cells rebuild on selection/edit changes
• Performance: Loading overlay wrapped in DataGridLoadingScope to avoid unrelated rebuilds
• Added FilterScope inherited widget and DefaultFilterWidget for const-friendly filter rendering
• Moved filter widgets to widgets/filters/ directory

0.0.11 - 2026-02-21

• Performance: Converted DataGridCell from StatelessWidget to StatefulWidget with content caching — cell renderers are only re-called when the row data, column, or selection state for that specific cell changes; unrelated state changes reuse the cached widget
• Performance: Replaced GestureDetector + DecoratedBox per cell with a single custom RenderObject (_CellContainer) — decoration changes are a markNeedsPaint() only, gesture callback updates are pointer swaps with zero framework cost
• Performance: Isolated InheritedModel dependencies in cells using Builder pattern — cell element has no inherited dependencies, only the inner Builder subscribes
• Performance: Cell content cache uses identical() row reference comparison and valueAccessor value comparison for accurate invalidation
• Fixed: Cell value not updating after edit commit due to row equality comparison missing actual data changes

0.0.10 - 2026-02-19

• Fixed: Pagination not re-rendering when rows are deleted — totalItems and currentPage are now updated in DeleteRowEvent and DeleteRowsEvent

0.0.9 - 2026-02-19

• Fix: Reduced rasterization thread overload during fast scrolling by isolating repaint-heavy subtrees, minimizing per-frame allocations, and preventing unnecessary rebuilds during scroll.
• Performance: Added targeted RepaintBoundary placements and tightened delegate rebuild logic to avoid per-cell subscriptions and costly per-frame work.

0.0.8

• Performance: Cell editing now only commits on Enter/focus loss instead of every keystroke
• Fixed: Scroll controller attachment error when changing page size
• Fixed: Keyboard handling in cell editor (Enter commits, Escape cancels)
• Improved: Consistent widget tree structure prevents scroll view conflicts during rebuilds
• Example: Added Actions column with delete button
• Example: Refactored into organized file structure (models, config, renderers)

0.0.7

• Fixed: Selection checkbox column now always pinned in multi-selection mode
• Fixed: Body viewport now invalidates column cache when columns change
• Fixed checkbox column alignment issue when switching selection modes

0.0.6

• Performance: Replaced AnimatedBuilder in header/filter rows with custom RenderObject (RenderDataGridHeader)
• Header and filter rows now use markNeedsPaint() on scroll instead of widget rebuilds
• Eliminated widget rebuilds during horizontal scrolling for smoother performance
• Added DataGridHeaderViewport widget for efficient header/filter rendering
• Added 8 new tests for header viewport with pinned/unpinned columns
• Fixed README image path
• Updated test count to 128 passing tests

0.0.5

• Performance: Refactored DataGridCell from StatefulWidget to StatelessWidget (StatefulWidget only used during editing)
• Performance: Removed nested StreamBuilders from cells - now using direct state access
• Performance: Added column caching in viewport renderer to avoid recalculating pinned/unpinned columns on every layout
• Performance: Added RepaintBoundary to grid body
• Performance: Removed scroll debounce timer from GridScrollController
• Added cacheExtent parameter to DataGrid for controlling pre-rendered content
• Added smooth scroll physics for better horizontal scrolling momentum
• Simplified DataGridCheckboxCell by removing StreamBuilder
• Removed unused rowRenderer parameter from DataGrid
• Removed unused default_row_renderer.dart file
• Fixed conditional updateRenderObject to avoid unnecessary updates
• Fixed scroll handling - viewport now handles scroll internally via ViewportOffset

0.0.4

• Removed unnecessary import in data_grid_controller.dart

0.0.3

• Added pagination support with client-side and server-side modes
• New DataGridPagination widget with page navigation and page size selector
• Pagination controller methods: enablePagination(), setServerSidePagination(), setPage(), setPageSize(), nextPage(), previousPage(), firstPage(), lastPage()
• Server-side pagination with onLoadPage and onGetTotalCount callbacks
• Loading overlay during async operations
• New SetTotalItemsEvent for server-side pagination total count

0.0.2

• Updated dependencies to latest versions
• Added dartdoc documentation to public API
• Added topics for pub.dev discoverability
• Fixed example directory structure
• Migrated to freezed v3

0.0.1

• Initial release
• High-performance virtualized data grid with support for 100k+ rows
• Core features:
  • Column management (resize, pin, hide/show)
  • Multi-column sorting with isolate support for large datasets
  • Column filtering with multiple operators
  • Row selection (none/single/multiple modes)
  • Inline cell editing with validation
  • Keyboard navigation
  • Fully customizable theming
  • Event-driven architecture with interceptors
• Performance optimizations:
  • Viewport virtualization for 60fps scrolling
  • Background isolate processing for sort/filter operations
  • Debounced operations