# GroupRowRenderParams

> _Since v0.1.1_

Parameters passed to custom group row renderer *

## Properties

| Property | Type | Description |
| -------- | ---- | ----------- |
| `key` | <code>string</code> | The group key |
| `value` | <code>any</code> | The group value (last segment of path) |
| `depth` | <code>number</code> | Depth level (0-based) |
| `rows` | <code>any[]</code> | All data rows in this group (including nested) |
| `expanded` | <code>boolean</code> | Whether the group is expanded |
| `toggleExpand` | <code>() =&gt; void</code> | Toggle expand/collapse |