Can we use script-runner to run script right after change is made to a field?

[Hung Nguyen]

I am trying to see if there is anyway to do some activities right after a field is changed (an option selected from a list), even before the Submit button is clicked.

What I actually wanted is to filter a second field selection list after the first field is changed.

Can Script-runner be invoked in that situation?

Thanks

[Boris Berenberg]

You could have a post function which would make the change after the Submit button was clicked, or you can use JavaScript to make the change in the UI before the Submit button is clicked.

[Hung Nguyen]

Thanks Boris, It's exactly what I'm using right now, using JavaScript to make change in the UI. The problem is that the Javascript (in the description of custom field) was not fired every time the Create Issue screen reloaded out of Project changed, and on the view issue screen where the selection list displayed ONLY when the field edit (pencil icon) is clicked for the field.

How can I register to run my javascript when the pencil icon is clicked for a field?

[Boris Berenberg]

I am not sure, I am not a JS expert, but hopefully someone else here can help.