Update dialog content from main page?

Is there a way to update the content in the dialog from the page? So, I have a data grid that opens a side dialog when a row is clicked. Showing the details. I would like the dialog to stay open show a new item if I click a new row in the datagrid. So I can go through all my rows without having to close and open the dialog.

We recently merged a pull request that might be useful in your case as well: