How to iterate array from the <select-searchable> and get object from the array in ionic3?

Ionic Framework ionic-v3
1

Hello to all,
I am using component and i have get the object name inside the object and i have assign the object inside the itemTextField=“categoryDto” this but not working tell m anyone how to get object value?

  <select-searchable
        title="Port"
        [(ngModel)]="port"
        [items]="adminCategoriesList"
        itemValueField="id"
        itemTextField="categoryDto"
        [canSearch]="true">
    </select-searchable>

Screenshot%20from%202018-04-14%2011-35-26