angular - Return values using EventEmitter angular2 -


i have eventemitter issues event in parent component, want parent component perform series of instructions , result returns caller, this.filteredlist want contain list returned parent component when returns, filteredlist undefined

this de chid component "autocomplete.component.ts:" //when returns in this.changefilter.emit, this.filteredlist undefined:

export class autocompletecomponent implements oninit {     ...      public filteredlist = [];      @output() changefilter = new eventemitter<any>();       filter(){      //this want filteredlist contain list returned other component:      this.filteredlist =this.changefilter.emit({query:this.query});       if (filteredlist){         console.log(filteredlist);        }     }

the template:

    <div class="container">     <div class="input-field col s12">       <input id="clienteaut" type="text" class="form-control bs-autocomplete" style="width:300px;" [(ngmodel)]="query" (keyup)="filter()" on-click="filterall()">       <label for="clienteaut"></label>     </div>     <div class="divlista" *ngif="filteredlist.length > 0" style="">       <div class="divfila" *ngfor="let item of filteredlist">         <ul >           <li>             <a (click)="select(item)">{{item.codigocliente}} - {{item.nombre}}</a>           </li>         </ul>       </div>     </div>     </div>

this parent component "busquedacompiadoras.component.ts":

//the function "onchangefilterclientes" return list data, when returns eventemitter of child component this.filteredlist undefined //any ideas?

export class busquedacopiadorascomponent {    clientes: array<any> //= [];  ngoninit() {     this._comunservice.getmarcas()         .subscribe((clientesdata) => {             this.clientes = clientesdata clientemodel[];             //this.rellenarmarcas(marcasdata);         }); }      onchangefilterclientes(obj:any):any[]{              this.clientesfilter = this.clientes.filter(c => c.nombre.tostring().tolowercase().indexof(obj.query)>-1);             return this.clientesfilter;  }

try following:

export class autocompletecomponent implements oninit { ...

@input() public filteredlist = [];  @output() changefilter = new eventemitter<any>();   filter(){  //this want filteredlist contain list returned other component:  this.changefilter.emit({query:this.query});  }

and in busquedacopiadorascomponent template pass filteredlist below:

 [filteredlist]="clientesfilter"

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