Combobox - lost input characters

asked 2019-09-11 21:58:28 +0800

zkulm gravatar image zkulm
100 1

updated 2019-09-11 22:04:09 +0800

Hi ZK community,

we have an issue using the combobox. By typing in slowly characters in the combox, sometimes characters are lost.

This is reproducible in the ZK sandbox environment with the default coding for the combobox.

By entering slowly e.g. "accu" (for matchin accuracy) characters are lost if they are entered (keystroke) during the rendering of the component. In my case, e.g. the "c" is getting lost. Unfortunately, i can't attach a gif showing the issue as i am a new user.

The bug is reproducible with the latest versions of Google Chrome and Mozilla Firefox.

Does someone have any idea how to solve the issue or is it already reported to the community?

Thanks for your help!

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Welcome to the forum, I increased your karma so you can post links. Ideally to a runnable reproducing example on http://zkfiddle.org/

cor3000 ( 2019-09-12 11:53:18 +0800 )edit

4 Answers

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answered 2019-09-18 18:29:24 +0800

cor3000 gravatar image cor3000
6168 2 7
ZK Team

updated 2020-03-16 10:44:39 +0800

Hi again,

here my first attempt to patch/workaround the issue.


If you can test this on your side I'll post an official bug with this workaround. I hope it doesn't cause unwanted side effects.

UPDATE: I posted the bug ticket ZK-4383

UPDATE 2: ZK-4383 has been fixed and is testable in the latest FL version maven: 9.0.1.FL.20200310-Eval (or download)


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answered 2019-09-12 13:53:01 +0800

zkulm gravatar image zkulm
100 1

Hi cor3000, thank you!

Please see here my simple example: http://zkfiddle.org/sample/27n8vht/1-Combobox-lost-input-characters

If you increase my karma to 100 then i will attach you a gif showing the issue.


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no need for a video, I can reproduce this issue easily

cor3000 ( 2019-09-12 16:14:39 +0800 )edit

answered 2019-09-12 16:39:46 +0800

zkulm gravatar image zkulm
100 1

Ok, thanks. Looking forward for help on this issue :)

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right now I don't have a workaround, it's overlapping ajax request/responses while typing, hard to avoid that. I can try next week since tomorrow is a public holiday here.

cor3000 ( 2019-09-12 19:09:33 +0800 )edit

answered 2019-09-19 20:24:13 +0800

zkulm gravatar image zkulm
100 1

Hi Robert, i integrated the script in our code and it seems to solve the issue. So far, no characters were lost anymore and i did not have any side effects yet.

I'll do some more test and once i notice something strange, i'll let you know.

But so far it seems to work :-) Thank you very much for this fast help, i appreciate that very much!

Regards Philipp

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Asked: 2019-09-11 21:58:28 +0800

Seen: 27 times

Last updated: Mar 16 '20

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