question Re: Client script field msg both onchange and onload in Developer forum

Client script both onchange and onload

CE_ — Tue, 31 Oct 2023 08:14:31 GMT

Re: Client script field msg both onchange and onload

Peter Bodelier — Mon, 09 Oct 2023 08:08:55 GMT

A client script cannot work onload and onchange. You will have to create 2 Client scripts.

Re: Client script field msg both onchange and onload

Danish Bhairag2 — Mon, 09 Oct 2023 08:12:31 GMT

Certainly! To achieve this behavior, you can use a client script in ServiceNow. Here's the client script code that you can use to handle the onChange and onLoad events for the "agreement" field:

In this script:

- The `onLoad` function is triggered when the form is loaded.

- The `onChange` function is triggered whenever the "agreement" field value changes.

- The `checkAgreement` function checks the value of the "agreement" field and shows/removes messages accordingly.

Make sure to replace `'agreement'` with the actual name of your field in ServiceNow. Also, replace `'message1'` and `'message2'` with the actual names of your sys_ui_message records.

This script should cover the behavior you described: showing specific messages based on the selected value of the "agreement" field. Remember to test the script thoroughly in your ServiceNow instance to ensure it behaves as expected.

Mark my answer helpful & accepted if it helps you resolve your query.

Thanks,

Danish

Re: Client script field msg both onchange and onload

CE_ — Mon, 09 Oct 2023 08:34:58 GMT

Thanks, I'll try this. Why do I need these: (message1.length === 0) and these if (message2.length > 0)?
Can you explain what these does, why I cant write like this:

if (agreementValue === 'none') { g_form.addInfoMessage('message1');

Re: Client script field msg both onchange and onload

CE_ — Mon, 09 Oct 2023 08:38:17 GMT

How would these 2 client script look like?

Re: Client script field msg both onchange and onload

Peter Bodelier — Mon, 09 Oct 2023 08:44:12 GMT

You could use the script provided by @Danish Bhairag2.

Just split them between 2 client scripts.
It seems it can work. I wouldn't create it like this though, because you won't be able to see that is also works onload, unless you look at the script. That is not very maintainable.

Since you will be reusing the bulk part of the script, it may be a good idea, to use a script include for that part, even though it is not needed.

Re: Client script field msg both onchange and onload

CE_ — Mon, 09 Oct 2023 08:48:33 GMT

Thanks, But does the onLoad script have to be that long?
None is the onLoad value so then I wouldnt need any if statements I guess?

Re: Client script field msg both onchange and onload

Danish Bhairag2 — Mon, 09 Oct 2023 08:52:01 GMT

Hi @CE_ ,

You can modify the script logic as per your requirement & check if it works or not

Thanks,

Danish

Re: Client script field msg both onchange and onload

RAMANA MURTHY G — Mon, 09 Oct 2023 09:20:25 GMT

Hello @CE_ ,

You can use onChange client script for both onChange and onLoading

function onChange(control, oldValue, newValue, isLoading, isTemplate) { if (isLoading) { // your onLoad client script } // your onChange client script }

Please mark my answer correct & helpful, if it helps you

Thank you

Re: Client script field msg both onchange and onload

Danish Bhairag2 — Mon, 09 Oct 2023 10:07:34 GMT

You can remove those @CE_ . The way u have suggested that is also correct.

Thanks,

Danish