TreeSelect when tree select child is pre selected the parent doesn't mark as partial selected

[avim101]

Describe the bug

when tree select child is pre selected the parent doesnt mark as partial selected

Environment

primeng latest demo

Reproducer

https://stackblitz.com/edit/n5rewa?file=src%2Fapp%2Fdemo%2Ftree-select-reactive-forms-demo.ts

Angular version

17.0.5

PrimeNG version

17.3.1

Build / Runtime

Angular CLI App

Language

TypeScript

Node version (for AoT issues node --version)

18.18.0

Browser(s)

all

Steps to reproduce the behavior

1. add options to treeSelect
2. set selected node

Expected behavior

parent of the selected node should shown as partial selected [-]

[avim101]

Hello @mehmetcetin01140 ,
just checking in for any updates on this issue

[pyrobirb]

Hello @mehmetcetin01140 , just checking in for any updates on this issue

I found a temporary solution (unsure of the consequences) but it worked for me..
but I have to set partialselected manually like this on ngModelChange:

    this.nodes = [ ...this.nodes.map(u => ({ ...u, partialSelected: !!selected?.find(x => x.parent?.key == u.key) })) ]

Override the resetPartialSelected method with something prevents it from executing.

Original (in primeng-treeselect.mjs):

resetPartialSelected(nodes = this.options){
        if (!nodes) {
            return;
        }
        for (let node of nodes) {
            node.partialSelected = false;
            if (node.children && node.children?.length > 0) {
                this.resetPartialSelected(node.children);
            }
        }
    }

Fix (applied in main.ts):

TreeSelect.prototype.resetPartialSelected = function(nodes = null){
       //
    }

[GitHubStan]

@avim101 will you please update this bug with a title that reflects the issue?

This is an issue for my team. Please fix.

[Jogonarr-3Pillar]

Any news on this bug please?

[miikakokkonen]

@pyrobirb, For me it was only necessary to set the partialSelected myself in ngModelChanges. It worked without touching TreeSelect.prototype

in template

<p-treeSelect
(ngModelChange)="treeselectChange($event)"
[options]="nodes"
selectionMode="checkbox">
. . . . 

in component.ts

treeselectChange(event: TreeNode[]) {
    event.forEach(x => {if (x.parent && !event.includes(x.parent) ) {x.parent.partialSelected = true}})
}

[github-actions]

Due to PrimeNG team's busy roadmap, this issue is available for anyone to work on. Make sure to reference this issue in your pull request. ✨ Thank you for your contribution! ✨