select only parent node treeview in angular 4 -


i working ngx-treeview in angular 4. here want parent need select when click on it.picture so, how achieve it

<ng-template #itemtemplate let-item="item" let-oncollapseexpand="oncollapseexpand" let-oncheckedchange="oncheckedchange"> <div class="form-check">     <i *ngif="item.children" (click)="oncollapseexpand()" aria-hidden="true" class="fa" [class.fa-caret-right]="item.collapsed"         [class.fa-caret-down]="!item.collapsed"></i>     <label class="form-check-label">         <input type="checkbox" class="form-check-input" id="treeviewcheckbox" value={{item.value}}             [(ngmodel)]="item.checked" (ngmodelchange)="oncheckedchange()" [disabled]="item.disabled" (click)="treeviewselectedvalues($event)" />          {{item.text}}     </label> </div></ng-template> <ngx-treeview [config]="config" [items]="items" [itemtemplate]="itemtemplate">


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