uncollapsibleWidgetsCount property
The number of uncollapsible widgets which remain visible even when a section is collapsed.
For example, when a section contains five widgets and the
uncollapsibleWidgetsCount is set to 2, the first two widgets are
always shown and the last three are collapsed by default. The
uncollapsibleWidgetsCount is taken into account only when collapsible
is true.
Implementation
core.int? uncollapsibleWidgetsCount;