is it practical to use renderplot or renderdatatable with showModal & modalDialog ?
Do you mean showing a plot/table with a modal?
What's your definition of "practical"? What are you trying to achieve?
It's certainly possible, and may even be a good idea for your situation.
Thanks, 'practical' means capability of show a big datatable or a plots with showModal & modalDialog without causing other problems like cashing the app or freezing the app.
It should be ok, yes. Have you tested it (e.g. tried displaying a very large datatable in a modal)?