DataGrid: fix rows on collapse group and virtual scroll (T1325181)#33075

Merged

anna-shakhova merged 3 commits intoDevExpress:26_1from

anna-shakhova:26_1__T1325181_grouping

Apr 3, 2026

Commits on Mar 30, 2026

DataGrid: fix calculate group offsets on collapsing a new group (T1325181)
anna-shakhova
committed

Commits on Mar 31, 2026

DataGrid: fix calculation of loadIndex in virtual scrolling mode (T1325181)
anna-shakhova
committed

Commits on Apr 3, 2026

add comment and refactored tests
anna-shakhova
committed