material dialog disable close

1this.dialog.open(DialogComponent, { disableClose: true });

1  // disableclose 'true' but if you try to backdrop click it diesn't lose data
2  @HostListener('window:keyup.esc') onKeyUp() {
3    this._dialogRef.close(this.socios);
4  }
5  ngOnInit(): void {
6    this._dialogRef.disableClose = true;
7    this._dialogRef.backdropClick().subscribe(_ => {
8      this._dialogRef.close(this.socios);
9    })
10  }