Make TreeTable use expandedIcon and collapsedIcon

[LGougerot]

The expandedIcon and collapsedIcon in TreeNode are unused in TreeTable.

This feature was apparently implemented in previous version after issue #2269 but seems to have been lost in new 6.x TreeTable.

Can this behavior be reimplemented in new version ?

Thanks.

[namdien177]

I'm also facing this issue and eventually come up with a hardcore checking
<ng-container *ngIf="rowNode['level'] === 0 && !rowNode['node'].expanded"> <i class="ml-1 pi pi-folder"></i> </ng-container> <ng-container *ngIf="rowNode['level'] === 0 && rowNode['node'].expanded"> <i class="ml-1 pi pi-folder-open"></i> </ng-container>
with
<ng-template let-rowData="rowData" let-rowNode pTemplate="body">
and
<tr [ttRow]="rowNode" [ttSelectableRow]="rowNode">

It's a bit late but hopefully newcomer won't be suffering from this simple task...

[cagataycivici]

New treetable is template based so these icon properties are not used. You may add them or any icon of your choice using template.

[sh977218]

Does the template support expandedIcon/collapsedIcon? i.e. When I try to use pTemplate, those expand/collapse icons are always default one, doesn't matter what I give.