jqwidgets-framework/demos/Angular/src/treegrid/keyboardnavigation/app.component.html

jQWidgets is an advanced Angular, Vue, Blazor, React, Web Components, jquery, ASP .NET MVC, Custom Elements and HTML5 UI framework.

<jqxTreeGrid
             [width]="getWidth()"
             [source]="dataAdapter"
             [editable]="true"
             [columns]="columns"
             [ready]="ready"
             #TreeGrid>
</jqxTreeGrid>
<div style="font-family: Verdana; font-size: 12px; width: 670px;">
  <ul>
    <li><b>Left Arrow</b> key - on an expanded record, collapses the record.</li>
    <li><b>Left Arrow</b> key - on a collapsed or end record moves focus to the record's parent.</li>
    <li><b>Right Arrow</b> key - on a collapsed record expands the record.</li>
    <li><b>Right Arrow</b> key - on an expanded record, moves to the first child record, or does nothing on an end record.</li>
    <li><b>Up Arrow</b> key is pressed - Selects the row above.</li>
    <li><b>Down Arrow</b> key is pressed - Selects the row below.</li>
    <li><b>Page Up/Down</b> is pressed - Navigate Up or Down with one page.</li>
    <li><b>Home/End</b> is pressed - Navigate to the first or last row on the current page.</li>
    <li><b>Enter</b> key is pressed - Saves the Edited Row.</li>
    <li><b>Esc</b> key is pressed - Closes all Editors and Cancels the changes.</li>
    <li><b>F2</b> key is pressed -  Enters edit mode for the currently selected row.</li>
    <li><b>Shift+Arrow</b> key extends the selection.</li>
    <li><b>Shift</b> extends the selection when an end user clicks on a row.</li>
    <li><b>Ctrl</b> key is pressed - extends the selection when an end user clicks on a row. </li>
    <li><b>Space</b> key is pressed - Checks/Unchecks the selected record(s). </li>
  </ul>
</div>