material dialog- how to get response data .subscribe()

I wasn’t sure how to get the data back from the form in the dialog box. Turns I needed to subscribe to the dialog box.

Also, the close button in the upper right needed a cancel();

as always fyi/hth

<button class="close" mat-button (click)="cancel()"  >X</button>
<h4 mat-dialog-title>There are items in this category.</h4>

<p>
    <button id="keepItemsConfirm" type="button" class="btn btn-default" mat-button [mat-dialog-close]="false" cdkFocusInitial>
       Keep the items, delete this category
    </button>
</p>
<button mat-button [mat-dialog-close]="true"  class="btn btn-danger" cdkFocusInitial>
       Delete category and included items
</button>

openTemplateDialogBox() {
   this.dialog.open(NewMasterCalendarComponent).afterClosed().subscribe(result=> {
      console.log(result)
  });
}