Is there a way to pass an object from child to parent without relying on @viewChild or services?
export class MultiSelectComponent implements OnInit {
selectedItems: FormSelectComponentOption[] = [];
@Input()
items: FormSelectComponentOption[];
@Output()
selected = new EventEmitter<FormSelectComponentOption[]>();
}
What method can I use to retrieve a complete FormSelectComponentOption via a "request"?
Instead of making a direct request, update the parent component with the selections each time they are changed.
In your MultiSelectComponent, whenever the user modifies the selections, trigger
this.selected.emit(this.selectedItems)<multi-select (select)="selectionChanged($event)" [items]="items">selectionChanged() method to handle and store the updated selection.If you need to transfer data of type FormSelectComponentOption[] from a child component to its parent in response to a specific event (like click), you can achieve this using emitters.
Here is an example of how you can do it:
//Parent component html
<multi-select (selected)="itemsSelected($event)"></multi-select>
//Parent component class
public class ParentComponent {
itemsFromChild: FormSelectComponentOption[];
itemsSelected(FormSelectComponentOption[] items){
this.itemsFromChild = items;
}
}
//Child component html
<div (click)="selected.emit(selectedItems);"></div>
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