0} class:contained>
{#if showHeaders && columns.some(col => col.title)}
{#each columns as column}
{column.title || ''}
{/each}
{/if}
{#each _items as item (item[key])}
select(item[key])} class:selected={activeKey === item[key] && !activeChildKey}>
{#if item.children?.length}
toggleChildren(item[key])}>
{/if}
{#each columns as column} {@const value = item[column.key]}
{#if typeof value !== 'object'} {value || ''} {/if}
{/each}
{#if item.children && childrenOpen[item[key]]}
selectChild(item[key], e.detail)} />
{/if} {/each}