What it means
SSRM selection stores a stable selection state object instead of treating the loaded rows as the full truth.
Data Models guide
SSRM Selection data grid documentation
SSRM selection keeps select-all state even when only some rows are loaded.
When to use it
Use it when select-all needs to include rows that are not loaded in memory yet. Choose controlled SSRM selection when the host needs to persist, inspect, or replay selection state.
Implementation notes
The loaded row ids in `onSelectionChanged` are only the visible subset. The durable state lives in `selection.state`. Expose the selection API when your host needs programmatic set/capture/clear controls.
Relevant API
Start with serverRowModel.selection, serverRowModel.selection.enabled, serverRowModel.selection.state, serverRowModel.selection.state.selectAll, serverRowModel.selection.state.toggledRowIds, serverRowModel.selection.state.selectAllChildren, serverRowModel.selection.state.toggledNodes, serverRowModel.selection.groupSelects. Open the live API reference for types and defaults.