How can I make use of input validation in Panel? For example, I am using a DatetimeInput. If I enter a bad time, it will display (invalid) in the name but I don’t see a way to check that programmatically. It looks like if invalid input is entered, it just keeps the previous value despite displaying the erroneous one. Similarly for the AutocompleteInput, if I enter an invalid choice, it doesn’t show anything and will just use the default/previous value.
I think it’s done on the Javascript side, so either
- might not have control over invalid choices
- might need to use jscallback
- unrestrict all choices and watch on python end