p-cascadeSelect options: not change after new data in array of options

[AlexKuturkin]

Describe the bug

Hello everyone!

Earlier p-cascadeSelect options change after data was changed.
Also changed html, so in dropdown were new values.
This behavior was work in version "primeng": "15.4.15-lts",
example in stackblitz

Now, in version "primeng": "~17.3.2", this not working, unfortunately.
Any suggestions?

Thank you

Environment

angular app

Reproducer

https://stackblitz.com/edit/1pszed?file=src%2Fapp%2Fdemo%2Fcascade-select-basic-demo.html,package.json

Angular version

17.0.9

PrimeNG version

17.3.2

Build / Runtime

Angular CLI App

Language

TypeScript

Node version (for AoT issues node --version)

20.10.0

Browser(s)

Chrome 121.0.6167.86

Steps to reproduce the behavior

No response

Expected behavior

No response

[fridolin-koch]

Having the same issue after upgrading from 16.x to 17.9.0

I'm not yet sure I totally the whole signals concept, but as far as I understand it:

primeng/src/app/components/cascadeselect/cascadeselect.ts

Lines 685 to 687 in 5dae6e5

	processedOptions = computed(() => {
	return this.createProcessedOptions(this.options || []);
	});

Will only be called once. this.options needs to be a signal as well, otherwise it is never updated

Ref: https://angular.io/guide/signals#computed-signals

As a workaround I just re-render the cascade select after changing the options

[AlexKuturkin]

As a workaround I just re-render the cascade select after changing the option

Hello!
Can you show how you did this, please.

[fridolin-koch]

Just use ngIf to toggle the element when you change the data

e.g. https://stackblitz.com/edit/clx9ov-7xf8sh

[cetincakiroglu]

Hi,

I've just clicked the button and options are updated https://stackblitz.com/edit/1pszed-tuskv8?file=src%2Fapp%2Fdemo%2Fcascade-select-basic-demo.html,src%2Fapp%2Fdemo%2Fcascade-select-basic-demo.ts

Could you please tell us how to reproduce the issue?

[fridolin-koch]

Hi,

I've just clicked the button and options are updated https://stackblitz.com/edit/1pszed-tuskv8?file=src%2Fapp%2Fdemo%2Fcascade-select-basic-demo.html,src%2Fapp%2Fdemo%2Fcascade-select-basic-demo.ts

Could you please tell us how to reproduce the issue?

@cetincakiroglu The code you linked uses 15.4.15-lts which works fine. It also worked fine in 16.0.2

Here you can find the bug reproduction with 17.9.0 https://stackblitz.com/edit/clx9ov

The bug can also reproduced with 17.11.0 https://stackblitz.com/edit/clx9ov-rqfmhu