searchFn not trigger when clean search key

[0208SammyMai]

Issue Type (delete the irrelevant ones)

version:2.21.10

What browser?
chrome

Steps to Reproduce the Problem

Please detail your steps here

1. I seted search-options="{ enabled: true, searchFn: tableFilter }" and I hope when my search key change can trigger this hook. But found something strange.

2. When I keydown 'backspace' to clean last char in input box, searchFn hook does not trigger.

3. I don't know it is a bug or originally designed so.

Expected Behavior

I hope searchFn can be triggered when clean search key.

[maronkoders]

I would say, I'm having issues with the search function too. I want my search to talk to the backend. Currently, using a function defined in the search-options. Puts my server at halt, given I have updated server params and try to load items. The way we do with table events. Can someone give clarity here.

[0208SammyMai]

You could try setting externalQuery: searchKey and setting your own search input box，I found that this allows searchFn to be triggered when the last character is cleared.
This is just what I need, so you can try it. @maronkoders