Primeng: OptionGroup support to MultiSelect

[actra-gschuster]

I'm submitting a ... (check one with "x")

[X] feature request => Please check if request is not on the roadmap already https://github.com/primefaces/primeng/wiki/Roadmap

Expected behavior
It'd be great if the MultiSelect component had something similar to "optgroup", so one may select all "option" entries inside an "optgroup" by checking the "optgroup"s checkbox.
Use case may ba a business with several subsidiaries, each one with multiple offices where you want to select all offices of a subsidiary but only a few of another one.

Please tell us about your environment:

• Angular version: 4.0.3
• PrimeNG version: 4.0.0-rc.3

[cagataycivici]

Added to roadmap.

[shraddha13]

When do you expect you can support this functionality? Any release date as I have urgent requirement to implement right away.

[pierfreeman]

Yes, I'd like to know too if this feature has been added to any milestones

[sweetyv]

Hi, any update on this feature? I really need support for this in my project. Please help.

[pabitra1989]

Any update on this feature?

[uodriozola]

Any update on this feature? I need to create groups of elements like in the following example:

[nancycg]

Is there any solution provided for this functionality? Kindly reply if it exists now!

[andyblem]

Any update on this feature? I need to create groups of elements like in the following example:

this feature will be very much useful, can you please add it.

[EmanuelleViana]

Any prevision?

[pedrobacchini]

Intermediate solution:

https://medium.com/@saurabhatgate/grouped-multi-select-with-primeng-113616df9981

Don't work reactive form and validation style

[RobertRajcool]

Any update on this feature?

[stanislavKacmarik]

Looks like #9772 solved this issue.