Hi @rahulb31017943, For SPA, while using front-end technologies like
REACT or ANGULAR, we do not use HTML or sightly to render the content.
Instead, we create a component using REACT or ANGULAR. To read the
values in the dialog, we use the sling model exporter. Check an example
here. Even though the blog gives a REACT example, it is more or less the
same for angular as well. Hope this helps. Thanks,Kiran Vedantam.