About

Combines rowHeightProvider (every 5th row 32px, every 13th row 70px, else 25px) with enableCellRowSpan. Spanned cells stretch across rows of differing heights: a span's pixel height is the sum of the heights of the rows it covers.

Controls

Run span geometry self-checks Grow covered row 14 by 10px (invalidateRowHeights) Scroll far span (row 299) to top