jqwidgets-scripts-custom/demos/Angular/treegrid/showorhidecolumn/src/app/app.component.html

jQWidgets is an advanced jQuery, Angular 7, Vue, React, ASP .NET MVC, Custom Elements and HTML5 UI framework.

<jqxListBox [theme]="'material'" #jqxListBox
            style="float: left"
            (onCheckChange)="checkChange($event)"
            [source]="listSource"
            [width]="120"
            [height]="200"
            checkboxes="true">
</jqxListBox>

<jqxTreeGrid [theme]="'material'" style="margin-left: 20px; float: left;"
            [source]="dataAdapter"
            [altRows]="true"
            [columns]="columns"
            [ready]="ready"
            #TreeGrid>
</jqxTreeGrid>