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Aurora Catalyst

Sticky responsive data-table

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What changed

Section titled “What changed”
  • DataTableColumnDef gains a top-level sticky?: 'left' | 'right' flag — coherent with label / sortable / filterable, NOT inside meta. Marked columns get position: sticky with cumulative offsets computed from preceding sticky columns on the same edge.
  • The component switches to table-layout: fixed with width: 100% and a computed min-width summing the rigid + elastic minimums. Rigid columns (size only) lock; elastic columns (size + minSize) absorb the remaining space.
  • Default truncation on elastic <td> via overflow: hidden / text-overflow: ellipsis / white-space: nowrap, with a native [attr.title] tooltip carrying the resolved text. Custom cells can override.
  • Sticky offsets recalculate when column visibility changes (toggle).

Why it matters

Section titled “Why it matters”

Three pains disappeared on narrow viewports and during pagination: (1) actions and select no longer scroll with the body, (2) horizontal scroll moves only data columns, and (3) the table width stops jittering between pages because auto no longer remeasures every cell. The fix is shared in <au-data-table> so consumers do not redo the math per list.

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