<jqxTreeGrid #myTreeGrid
[width]="getWidth()" [source]="dataAdapter" [columns]="columns"
[sortable]="true" [pageable]="true" [pagerMode]="'advanced'" [ready]="ready"
[pageSizeMode]="'root'" [pageSizeOptions]="['2', '3', '4']" [pageSize]="2">
</jqxTreeGrid>