private void rootBookViewModelReload()
        {
            this.RootBookViewModel_     = null;
            this.RootFavoriteViewModel_ = null;

            RootBookViewModel.setRootBookReferenceDate(this.referenceDate_);

            RootBookViewModel root_bvm = new RootBookViewModel();

            root_bvm.loadPosition();

            RootFavoriteViewModel root_fvm = new RootFavoriteViewModel();

            root_fvm.loadPosition();

            this.RootBookViewModel_ = root_bvm;
            this.RootBookViewModelChanged();

            this.RootFavoriteViewModel_ = root_fvm;
            this.RootFavoriteViewModelChanged();
        }
        private void rootBookViewModelReload()
        {
            this.RootBookViewModel_ = null;
            this.RootFavoriteViewModel_ = null;

            RootBookViewModel.setRootBookReferenceDate(this.referenceDate_);

            RootBookViewModel root_bvm = new RootBookViewModel();

            root_bvm.loadPosition();

            RootFavoriteViewModel root_fvm = new RootFavoriteViewModel();

            root_fvm.loadPosition();

            this.RootBookViewModel_ = root_bvm;
            this.RootBookViewModelChanged();

            this.RootFavoriteViewModel_ = root_fvm;
            this.RootFavoriteViewModelChanged();
        }