Mat-autocomplete - How to access selected option?

Question

I know that [value] stores the selected Object (Offer in my case). According to materials documentation, optionSelected emits an event. I tried

Answer 1

You can use it like :

<mat-autocomplete #auto="matAutocomplete" (optionSelected)='getPosts($event.option.value)'>

WORKING DEMO

Answer 2

It can we done in two ways

1) Using onSelectionChange which emits MatOptionSelectionChange from mat-option

<mat-autocomplete #auto="matAutocomplete">
    <mat-option
      *ngFor="let option of options"
      [value]="option"
      (onSelectionChange)="updateMySelection($event)"
    >
      {{ option }}
    </mat-option>
</mat-autocomplete>

2) Using optionSelected which emits MatAutocompleteSelectedEvent from mat-autocomplete

<mat-autocomplete 
  #auto="matAutocomplete"
  (optionSelected)="updateMySelection($event)">
    <mat-option
      *ngFor="let option of options"
      [value]="option"
    >
      {{ option }}
    </mat-option>
</mat-autocomplete>

Answer 3

 <mat-form-field floatLabel="always">
            <mat-label>UTBMS Activity Codes</mat-label>
            <input type="text" placeholder="Activity Codes"  [(ngModel)]="activityCode"  aria-label="Number" matInput [formControl]="utbmsActivityCodesControl"
              [matAutocomplete]="autoActivityCodes">
            <mat-autocomplete autoActiveFirstOption #autoActivityCodes="matAutocomplete">
              <mat-option *ngFor="let option of utbmsActivityCodes | async" (onSelectionChange)="setBillingActivity(option)"  [value]="option.code">
                {{option.name}}
              </mat-option>
            </mat-autocomplete>
          </mat-form-field>

setBillingActivity(object){
    this.actionData.libraryContent.billingActivityId=object.activityId;
  }