selecteds property
List of currently selected item indices for each column.
Each index corresponds to the selected item in its respective column.
For example, if selecteds is 0, 2, 1, it means:
- Column 0: first item (index 0) is selected
- Column 1: third item (index 2) is selected
- Column 2: second item (index 1) is selected
Implementation
late List<int> selecteds;